Showing posts with label Tutorial. Show all posts
Showing posts with label Tutorial. Show all posts

Monday, March 2, 2009

Windows XP Ebooks for Dummies


This Ebook will tell you how to modify your windows XP and makes your PC to perform better, u dont need any skill for using this tutorial just read and follow.

DOWNLOAD :
http://rapidshare.com/files/204237522/Windows_XP_Hacks_and_Mods_warezmate.blogspot.com.rar

Make WIndows XP Run Faster



This Tutorial will make your windows XP more faster.

DOWNLOAD :
http://rapidshare.com/files/204225414/Tweaking_Windows_XP.pdf

Thursday, February 12, 2009

HOW TO INSTALL WINDOWS XP PROFESSIONAL

Here Step By Step Guide for windows XP professional installation.
Some people dont know how to install a windows xp operating system or maybe they a little known but they afraid to install it in case somthing wrong in instalation progress.
here i give you a step by step guide installation guide for windows xp professional, and not different with another windows xp credit to : maddogs.

DOWNLOAD HERE :
http://rapidshare.com/files/197016999/Windows_XP_Installation.pdf

Tuesday, April 29, 2008

HOW TO MAKE YOUR ITOUCH into an IPHONE


All you need is a Jailbroken ipod touch and a wifi connection. It doesn't matter whether you have 1.1.1 or 1.1.2.

Here's what you do.

1) Tap Installer
2) Tap Sources
3) Tap Edit (Top right of screen)
4) Tap Add (Top left of screen)
5) After http:// enter repo.us.to
6) Tap OK
7) Let the ipod do it's thing.
8) Tap Install
9) Two new folders should have appeared, iphone 1.1.1 Apps for... and iphone 1.1.2 Apps for...
10) Tap whichever you need (1.1.1 or 1.1.2)
11) Install Apps as usual.
12) You will notice Maps and Mail have an additional file to install. Install this file first.


Thats it. It looks like a lot of steps but it's easy as anything.

NOW TO ADD A PHONE FUNCTION: To use Voice of Ip with your ipod touch here are the steps.

1) Go to the Installer tap sources then edit and add like before: http://touchmods.net/rep.xml

Go to the install section and scroll all the way down and click on the Touchmods Folder. Install the Touchmods SIP VoIP Application. Once springboard restarted, you search for and click the green Touchmods logo.

2) You will need to register a SIP account. With your computer, you need to go to www.freecall.com (or any other host with sip) and You will need to download the freecall application to your computer and register for a free account. when you have that Installed and an account made, just make one call with the application from your comp to initiate the username.

3) To make calls in America you need to do this exactly you type in +1xxxxxxxxxx +1 takes you in America first 3 xx are your area code and the 7 other are you number. In the freecall application on your computer.

4) Turn on your Ipod touch and open the sip Voip app. click on account on the top left and type in your username and password and click save.

5) The registrar is the webiste you got the account from. If you used freecall.com this is will be your account, sip.voiparound.com and click save.

6) Click on phone on the top right and do they exact thing you did with the freecall app on your computer and punch in a phone Number (+628xxxxxxx) and click call!!!!

7) You will call them and you can hear what they say, but to talk to them you need to buy or make a specific mic. you can buy the mic in the computer store like "mangga dua" or computer store near your home, if you would like to make your own mic, here the pic tutor :



8) The Final step is if you would like it to look like an Iphone, Download the customize application and re arrange the icons on (as much as you can) to look like the Iphone.

DEDICATED GAME SERVER



I've found this article on the net..

General Introduction to Dedicated Servers:

A dedicated server is a single computer on a web hosting network that is leased or rented, and dedicated to just one customer. A service provider monitors the computer’s hardware, network connectivity, and routing equipment, while the customer generally controls and maintains the server software. Dedicated servers are usually used for websites who have outgrown their standard hosting account and require something more powerful, they are also used by larger companies that require seperate servers for mail, web, and database servers. Web hosting companies may have their sites spread of one or several servers. Dedicated servers are housed in data centers, where service providers can monitor them close-up and have hands-on access to them.

The primary advantage of using a dedicated server over a typical shared hosting account is the sheer amount of resources and control available to you, the customer. In many cases, the client is at liberty to install whatever software they desire, giving them greater flexibility and administrative options. Custom software can be installed whenever required, and also leaves less chance for a hacking attempt because only one site is being hosted and not several hundred, hence providing less targets. Dedicated server clients do not share resources, as those with shared hosting plans do; but rather, are at liberty to use all the resources available to them.


Installing and Configuring CSF Firewall

This article demonstrates how to install and configure the CSF (configserver) firewall. CSF can be used on a wide range of Linux systems, including those running cPanel.

rm -fv csf.tgz
wget http://www.configserver.com/free/csf.tgz
tar zxf csf.tgz
cd csf
sh install.sh

If you have APF + BFD you will need to disable it, you can use the following to do so:

sh disable_apf_bfd.sh

To configure CSF modify the config files in /etc/csf/ - or if you are running WHM you can modify the CSF settings in there. By default CSF opens the standard cPanel ports.


Changing APF log for TDP/UDP drop's

If you’re tired of seeing your /var/log/messages log file full of dropped traffic from APF firewall then we have a solution! We’ll create a separate log file for TCP/UDP OUTPUT and drops which will leave your messages log nice and clean for easy browsing!

Requirements:

APF Firewall 0.9.3 or above. It may work on previous versions but we haven’t tested. If you’re using an older version you should upgrade anyways. Install APF by following our firewall tutorial.

Changing APF’s configuration:

1) Login to your server and su to root shell.

2) Create a new log file just for the TCP/UDP output/drops from APF.
touch /var/log/iptables

Set user permissions to restrict access.
chmod 600 /var/log/iptables

3) Change the syslog so it will tell iptables to use your new log file.
First lets make a backup to be safe:
cp /etc/syslog.conf /etc/syslog.conf.bak

pico /etc/syslog.conf

4) Add the following line at the bottom

# Send iptables LOGDROPs to /var/log/iptables
kern.=debug /var/log/iptables

5) Save the changes, ctrl + X then Y

6) Reload the syslogd service for the change to take effect.
/sbin/service syslog reload

7) Open APF and edit the firewall configuration.
First lets make a backup to be safe:
cp /etc/apf/firewall /etc/apf/firewall.bak

pico /etc/apf/firewall

Find the following: DROP_LOG

You should see this:

if [ "$DROP_LOG" == "1" ]; then
# Default TCP/UDP INPUT log chain
$IPT -A INPUT -p tcp -m limit --limit $LRATE/minute -i $IF -j LOG --log-prefix "** IN_TCP DROP ** "
$IPT -A INPUT -p udp -m limit --limit $LRATE/minute -i $IF -j LOG --log-prefix "** IN_UDP DROP ** "

Replace with the following:

if [ "$DROP_LOG" == "1" ]; then
# Default TCP/UDP INPUT log chain
$IPT -A INPUT -p tcp -m limit --limit $LRATE/minute -i $IF -j LOG --log-level debug
$IPT -A INPUT -p udp -m limit --limit $LRATE/minute -i $IF -j LOG --log-level debug

Find the following one more time: DROP_LOG

You should see this:

if [ "$DROP_LOG" == "1" ] && [ "$EGF" == "1" ]; then
# Default TCP/UDP OUTPUT log chain
$IPT -A OUTPUT -p tcp -m limit --limit $LRATE/minute -o $IF -j LOG --log-prefix "** OUT_TCP DROP ** "
$IPT -A OUTPUT -p udp -m limit --limit $LRATE/minute -o $IF -j LOG --log-prefix "** OUT_UDP DROP ** "

Replace with the following:

if [ "$DROP_LOG" == "1" ] && [ "$EGF" == "1" ]; then
# Default TCP/UDP OUTPUT log chain
$IPT -A OUTPUT -p tcp -m limit --limit $LRATE/minute -o $IF -j LOG --log-level debug
$IPT -A OUTPUT -p udp -m limit --limit $LRATE/minute -o $IF -j LOG --log-level debug


8) Save the changes to firewall.
Ctrl + X then Y

9) Restart apf for the changes to take effect.

/etc/apf/apf –r

10) Make sure the new log file is getting written to:
tail –f /var/log/iptables

You should see things like:

Aug 27 15:48:31 fox kernel: IN=eth0 OUT= MAC=00:0d:61:37:76:84:00:d0:02:06:08:00:08:00 SRC=192.168.1.1 DST=192.168.1.1 LEN=34 TOS=0x00 PREC=0x00 TTL=118 ID=57369 PROTO=UDP SPT=4593 DPT=28000 LEN=14

Also check the messages log to make sure APF still isn’t writing to it.
tail –f /var/log/messages

Final notes:
APF is written by R-fx Networks: http://www.rfxnetworks.com/apf.php


Rkhunter Installation

Rkhunter is a very useful tool that is used to check for trojans, rootkits, and other security problems. This tutorial will touch on installing and setting up a daily report for rkhunter.
Installing:

wget -c http://downloads.rootkit.nl/rkhunter-1.1.1.tar.gz
tar -zxvf rkhunter-1.1.1.tar.gz
cd rkhunter-1.1.1
./installer.sh

Now you can run a test scan with the following command:

/usr/local/bin/rkhunter -c
How to setup a daily scan report?

pico /etc/cron.daily/rkhunter.sh

add the following replacing your email address:

#!/bin/bash
(/usr/local/bin/rkhunter -c --cronjob 2>&1 | mail -s "Daily Rkhunter Scan Report" email@domain.com)

chmod +x /etc/cron.daily/rkhunter.sh
I just got a false positive!! What do i do?

False positives are warnings which indicates there is a problem, but aren't really a problem. Example: some Linux distro updated a few common used binaries like `ls` and `ps`. You (as a good sysadmin) update the new packages and run (ofcourse) daily Rootkit Hunter. Rootkit Hunter isn't yet aware of these new files and while scanning it resports some "bad" files. In this case we have a false positive. You could always have your datacenter or a system administrator check out the server to verify that it is not compromised.

More information on rkhunter can be found here: http://www.rootkit.nl

Monday, April 28, 2008

HOW TO SET UP PROXY IN YOUR BROWSER



How to set up proxies in your browser, be anonymous and make the passes last longer...

In Internet Explorer

Click "Tools", then "Internet Options", the in the "Conexions" Tab, click the "LAN Setup" Button in the bottom. There is a "Proxy Servers", tick the "Use a proxy....." and then enter the proxy in the bigger textbox and the port (the part that comes after the ":") in the smaller textbox. Hit ok, and then go to "www.whatismyip.com" to see if the proxy is now your IP.


In OPERA (www.opera.com)

Click "Files", then "Preferences", then "Network", then click the button "Proxy Servers", tick "HTTP", fill in with the proxy:port, click ok and voilà ! Don't forget to check with "www.whatismyip.com".


In Firefox

Tools -> Options
Then click the General Icon
Then the "Connection Settings..." button
Then click the "manually configure proxies" radio button, and enter the proxy address and port in the HTTP Proxy area.
Don't forget to check with "www.whatismyip.com".


In Netscape

  1. Click Edit
  2. Preferances
  3. The last button drop menu to the left should be "Advanced", click that
  4. Click "Proxies" from the list that drops down
  5. Put a dot next to "Manual proxy configuration"
  6. Put the proxy in under "HTTP Proxy"



Happy Anonymous surfing!

====================================================================
"To be clear: if I give you 255.255.255.255:8080, that means 255.255.255.255 is the proxy and 8080 is the port."
====================================================================


Some questions:

A : Is there anything to be gained by using anon or safeurl?

Q : No, because they have different IP's. If everybody uses given proxy the site presume that this is the same user & that's what we want.

For anyone still not convinced it is well worth the extra 30 secs of your time to use the proxy,think about a time that you totally scored gaining entry to the greatest site you've ever seen. However the very next time you tried it, surely within an hour or two, hehe, it was dead. If everyone used the Proxy provided, it would still be working. Literally for weeks or longer. Not to mention your IP is safe from being tracked. Everytime you tried from a link from somewhere else they never worked. After a while whenever you see a link you that site,you just knew it would be dead. Well, this has got to be the very best forum for providing working links and if you've spent any time here you already know that. The time these crackers put into being able to share great sites is more than anyone would imagine that doesn't even want to take less than a min to use a proxy. Just do it. Everyone will be glad, especially you!

Sunday, April 27, 2008

HOW TO MAKE INVISIBLE FOLDERS

This tutorial will not teach you to create hidden folders but invisible folders.
There is no point in creating hidden folders because you can just go to Tools > View > Show hidden files and folders.

Follow these steps:

1. Right click in a directory and go to New Folder.
2. Right click and then go to rename.
3. Delete the name and press Alt + 255. This will make the text disappear.
4. Right click on the folder once again but this time go to properties. Click on the "Customize" tab and go to the bottom where it says "Change Icon".
5. Scroll over and choose a blank icon like in this picture:


One minor flaw is that when you highlight the area with the folder, a small rectangle shows, indicating something is there. Also if you change the view to "Details" it will show it in Description. If anyone knows how to fix that please post here and tell me .

This is great for hiding folders because if the even if the person highlights the area, they would have to know it was there.

HOW TO MAKE MINI SIGNATURE

want to make a signature like this ?


or like this


or this


or


mayebe this ?


or this?


you can.. yes you can...
Ill try to explain how to create mini sigs.

1 ) Q : Whats is a Mini Sigs ???
A : A Mini Sigs is a small banner that people use has signature on some forum. Normally 400x20 or something similar.

Q : What do I need to do Mini Sigs ???
A : You can use any photo-editing software, Ill show this tutorial using Photoshop CS

2 ) First of all, open Photoshop.

Then, on the top left of the screen, press File/New

Image

Choose Width : 400
Heigt : 20

Then press ok

Image

Now resize the windows to have more place to work with and Zoom to about 200%

Image

Choose 2 color you want the background to be. For this exemple, I choosed Black and Red. Then Select the Gradient Tool, hold SHIFT and draw a line down to top of your sigs. Should look like this.

Image

Now create a New Layer. This layer will be used to make the shining effect.

Image

Choose the Elliptical Marquee Tool

Image

Draw an elipse that go half the way of the sigs. Like this :

Image

Select the Paint Bucket Tool, and choose White for the first color

Image

Fill the selection with the Paint Bucket Tool then change Opacity to 30%

Image

Press Ctrl + D to deselect.

Create another New Layer. This 1 is for the text.

You will need to download this Font : http://www.webpagepublicity.com/free-fonts/v/Visitor%20TT1%20-BRK-.ttf

To install it : C:/Windows/Fonts then File/Add a police and choose the 1 you just downloaded.

Now create a Text Section, choose the Visitor BRK font, the white color and type whatever you want to.

Go to Layer/Rasterize/Type

Image

Now double-click the 3rd layer, and choose Drop Shadow. Press OK

Image

Create another New Layer. This 1 is for the scan line.

Press Edit/Fill... and choose the diagonal line Pattern ( if you don't have it look at the bottom of this tutorial )

Image

Press OK. Then change the opacity to 30%.

Image

Now create a New Layer. This 1 will be used for the logo.

Choose a cool logo, and save it on your hard drive. Select it and past it on your current sigs. Resize it so it will fit your sigs and place it like you want.

Add Drop Shadow.

Your Done!!! Finished Product :

Image

For the Diagonal Line Pattern :

Create a New of : 3 Width
3 Height
Zoom till 1600%. Draw a digonal line.

Go to Edit/Define Pattern

Image

Name it : Diagonal then press ok. Now you can use it with the Fill... Tool

HOW TO Disable USB storage device write (make them read-only)

In the corporate world, a lot of time is spent on locking down computers to minimize the risk of confidential information leaving the company. With the popularity of USB storage devices in recent years the problem for large corporations has exploded. Almost all users want to use USB storage devices to move data around. With the size of USB storage devices increasing so much in recent years, the risk is increasing as more and more data could possibly be stolen or lost accidentally. In companies, USB storage devices have been banned completely and disabled from use on company computers.

In Windows Vista there is an alternative that will allow your corporate users to be able to read from USB storage devices but not write any data to them. Effectively turning on USB storage devices for all users but making them read-only. This way users can still read information off of USB storage devices that a third-party vendor may provide data on while preventing the employee from writing any data back to the storage device.

To setup read only USB storage device operation, follow these steps below:

  1. Click on the Start Button and type in Regedit and hit Enter.
  2. Navigate through HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control.
  3. Right click on Control and select New and then Key. Call the new key StorageDevicePolicies.
  4. Right click on StorageDevicePolicies and select New and then Dword. Call the new dword WriteProtect.
  5. Right click on WriteProtect and select Properties. Set the value to 1 and hit OK.

The computer is now configured to disable writing to USB storage devices.


The same trick can be applied on Windows 2000 and XP both in Prof and Home basis

Saturday, April 26, 2008

HowTo: Speed up a very slow computer

What To Do When . . .Your Computer Is Running Very Slowly

Speed Up A Sloth-Like PC With These Tips

What happened to your heavy-duty speed-demon system? All those megabytes of memory, big bad buses, and CPU clock cycles haven't kept your PC from drifting into the slow lane. This isn't just the gradual degradation most PCs undergo over time. But there haven't been any major blowups, either. So what gives?

A number of factors, having little to do with the age or capabilities or your system, can create excruciating system slowness. The Windows OS (operating system) is notoriously inefficient, which can affect performance. The file system also impacts Windows and hardware performance. How you work with applications can improve system speed, as can some basic hardware updates. Try the easy steps below to get your system back into the fast lane.

Image

Windows' Disk Cleanup utility will help you free up hard drive space, giving Windows and other applications more room to work.

Operating System.

The operating system is a critical piece of software that has a great influence on the overall performance of your PC. There are many things you can do within the OS that will help speed up a slow computer.

Limit startup programs. The wrong startup programs can slow down your PC at boot time and beyond. Unnecessary startup applications not only bog down the boot process, but they also run (often hidden) in the background and consume valuable system resources. Too many background applications will eventually leave nothing left for active programs.

The easiest place to find and remove startup applications is in Windows' Startup folder. From the Start menu, select Programs (All Programs in Windows XP) and find the Startup folder. Delete anything that doesn't absolutely need to run automatically all the time. Firewall and antivirus applications are two of the very few types of programs should always be running on your PC. Not all vendors are up front enough to place their applications in the Startup folder, however. Use Windows' System Configuration Utility to remove hidden startup applications. From the Run prompt (in the Start menu) type msconfig and click OK. Select the Startup tab to check out what other apps are launching at boot up. Uncheck anything nonessential. Many processes and programs have cryptic or obscure names. When in doubt, search the Web to find out what a particular process is supposed to do.

Clean out fonts. Fonts are wonderful things. The different types let you give voice to a wonderful variety of expression. But unused or useless fonts are a drag on system performance. Windows loads all your fonts at bootup, just to keep them handy in case an application needs them. But the more fonts you have, the more resources Windows consumes in keeping track of them. You probably have dozens of fonts you won't ever need, and didn't know you had. Periodically go into Windows' Fonts folder (C:\Windows\Fonts) and remove any unused Fonts. Select each font (hold down SHIFT or CTRL while clicking to select contiguous or noncontiguous groups, respectively) and choose Delete from the File menu. Double-click a font to view a sample.

End active desktop. Windows' Active Desktop feature, introduced with Internet Explorer in Windows 95, brings live Web content to your desktop. Even if you enjoy this constant stream of information, it can require exorbitant amounts of video and system memory. Deactivate Active Desktop in Windows 9x/Me by right-clicking a blank area of the Desktop, clicking Properties, and selecting the Web tab. Uncheck the View My Active Desktop As A Web Page box. In WinXP, right-click the Desktop, choose Properties, and select the Desktop tab. Click the Customize Desktop button and, under the Web tab, uncheck each listed Web page.

Keep it simple. WinXP's default set of animations and transitions is pleasing to the eye. But it doesn't do your PC any favors, especially if your hardware is a couple years old. All that sliding, fading, and shadowing takes a toll on memory and processing power. But WinXP animations aren't an all-or-nothing proposition. You can customize which effects to use or let Windows handle the decisions. Access your System Properties from the Control Panel (or by right-clicking My Computer and selecting Properties).


Windows' Disk Cleanup utility will help you free up hard drive space, giving Windows and other applications more room to work.
Navigate to the Advanced tab and select the Settings button in the Performance category. Prioritize performance, appearance, or let Windows choose a middle route. Alternately, choose the Custom option and enable or disable specific visual effects by checking or unchecking their respective entries.

Play server. Win98 and WinMe handle caching and multitasking functions based on whether they think you're running a desktop, mobile, or server-type machine. The nice thing is that you get to decide. Setting your machine up as a "network server" in Win98/Me will take advantage of performance features standard in later OSes. Right-click My Computer on the Desktop and choose Properties from the context menu that appears. Select the Performance tab and click File System. Change the Typical Role Of This Computer field to Network Server.

Clean out the Registry. Windows' Registry often contains duplicate or obsolete entries. The Registry is a database storing all the configuration information for the OS and your system—cleaning it out can help improve Windows' performance dramatically. Don't try to browse and delete Registry entries manually, though. You can easily render your system inoperable with one wrong move, so find a respected Registry utility (we review several in our "System Performance Utilities" sidebar). No matter how much you trust a Registry utility, though, always back up the Registry before attempting to clean it out. Launch the Registry Editor from the Run option under the Start menu. Type regedit in the command line

and click OK. From the File menu, click Export and save the backup file (with a .REG extension) in a safe place. To restore the Registry, simply open the Registry Editor again, choose Import (also under the File menu), and find your backup file.

Image

Use Windows' Task Scheduler to automate routine maintenance activities.

Reinstall. Over time, despite your very best efforts, Windows can become so top-heavy and cluttered with orphaned files, abandoned applications, and unnecessary processes that it's best to just start over from scratch. Power users, especially those with lots of programs and a large amount of file system activity, are especially prone to bogging down the OS. Though reinstalling the OS is an extreme step, and should be a last resort, you will probably see a significant improvement in performance with a clean Windows installation. Be prepared to back up all your data, reinstall all programs, and devote time to setting up again. See "What To Do When . . . You Need To Reinstall Your OS" on page 43 in this issue for in-depth step-by-step instructions.



File System.

Organize and maintain your files to keep your PC running smoothly. Here are some tips for the specific areas.

Make room. A full hard drive will bog down your system on all fronts. For one, as the drive fills up, Windows has to search more and more data to fulfill each request. More importantly, though, a full disk hinders the OS' ability to move files around temporarily and to manage virtual memory. First, empty the Recycle bin. You can easily lose hundreds of megabytes to files just sitting around waiting to be fully deleted. Then, run Microsoft's Disk Cleanup utility. From the Start menu, you will need to go to Programs, Accessories, and System Tools. Open Disk Cleanup, select the drive, and click OK. The utility will analyze the system and offer suggestions. Check each box and click OK. Next, uninstall unused applications. From Windows' Control Panel, select Add/ Remove Programs. Remove any programs you don't use, especially applications preinstalled by the manufacturer. Finally, archive infrequently used data to removable storage.

Remove temporary files. Disk Cleanup doesn't get rid of everything. Free up even more space by manually searching for and deleting temporary files. Most applications use temporary files to store session-specific information, back up active files, and (in theory) delete them when you close the program. But sometimes, for a variety of reasons, temporary files aren't deleted. So they sit, taking up valuable disk space, and not doing anything remotely useful. Open Windows' Search tool (called Find in Win98) from the Start menu. Find all files beginning with a tilde (~) (search for "~*.*") and all files with a .TMP file extension (search for "*.tmp"). Remove any that aren't immediately associated with an open file or application.

Defragment. A full hard drive isn't your only potential problem. Even with plenty of free space on a drive, the file system can become so fragmented that Windows can't efficiently access and store data. The OS stores information on a hard drive in sectors. When there aren't enough contiguous sectors available, Windows stores parts of files in different places on the disk and then keeps track of them all in a file allocation table. Removing files and applications further scatters sectors on the disk. Thus, over time, fragmentation occurs as more and more files are split up and stored in more and more places. And, because the system has to search more places to find files and work harder to put them together, fragmentation is a major drag on system performance. Run Windows Disk Defragmenter tool to rearrange files in the most optimal way. From the Start menu, open Programs, Accessories, and then System Tools. Open the Disk Defragmenter utility. In WinXP, let the utility analyze each drive to assess its level of fragmentation and determine whether it's worth defragging.

Image

When your system slows down, check Task Manager for closed-down applications that haven't relinquished their hold on system resources.

Scan for viruses. Viruses, worms, and Trojan Horses can all create serious system slowdowns. If you're already running anti-virus software, make sure the virus definitions are up-to-date (these are normally downloaded from the program's manufacturer, on a subscription basis) and perform a complete system scan. If you don't have an antivirus package, buy one. Install the software, update it, and then run a complete scan. In either case, schedule regular (at least weekly) scans and definition updates.

Perform regular maintenance. Don't make Disk Cleanup, temporary file removal, Disk Defragmenter, and antivirus scanning one-time activities. Without proper maintenance, system speed will continue to degrade needlessly. Schedule these activities using built-in tools (as with most antivirus programs) or using Windows' Task Scheduler. From the Start menu, navigate to Programs, Accessories, and System Tools. Open Scheduled Tasks. Double-click Add Scheduled Task to launch the Scheduled Task Wizard. Choose an application you want to run (Disk Cleaner, for example), set the schedule, and enter the login information of a user with permissions to run the program.



Applications.

Here are some software usage tips that you can use to boost your system's performance.

Uninstall correctly. When removing an application, use Windows' Add/Remove Programs utility (from the Control Panel) or the program's own uninstall utility. If you just remove the application's folder from Program Files or manually delete files, you'll miss Registry entries and hidden or cryptically named files. In time, debris from all kinds of long-forgotten programs will clutter up the system and bog it down. Performing official uninstalls will help prevent the problem, but how do you fix your current predicament? If possible, reinstall improperly removed programs, and then uninstall them the right way. Otherwise, plan on using a Registry cleaning utility and Disk Cleanup to clear out as much flotsam and jetsam as you can find.

Image

Bad or outdated device drivers can slow your system down. Check and update drivers with Device Manager.

Check for cling-ons. Not all applications shut down gracefully and relinquish their system resources when you close them. Sometimes programs or their associated services will hang on after closing, or Windows will continue to assign resources to an application even after exiting. Check Task Manager (by pressing CTRL-ALT-DEL) for programs you aren't actually running. In WinXP, click the Processes tab for more detailed listings. Netscape, Adobe Acrobat Reader, Microsoft Outlook, and RealPlayer are notorious for remaining "resident" in memory and continuing to monopolize scarce resources. Select each unneeded application or process and click End Task or End Process, respectively, to force it to quit.

Do more with less. Multitasking is one of the great computing innovations of the last decade. But the ability to work in a number of programs at once is a dual-edged sword. The possibilities of multitasking often lead users to approach or exceed their systems' capabilities. If you're doing several things at once, and the system bogs down, accomplish more by closing extra applications and just doing one thing at a time.

Roll back or upgrade. It's almost a law of software: As hardware speed and capacity improves, software gets bigger, buggier, and more bloated. Chances are the applications and software versions you have on your system today aren't the same as when your machine was running so much faster. Especially if you upgraded Windows, you're asking much more of your hardware. And as you continue to add and upgrade software, the programs will get bigger and require more system resources.

It's a depressing inevitability: over the long term, your computer will get slower and slower, until it's obsolete and needs replacing. In the short term, though, you have two options: downgrade software or upgrade hardware. The former might not be feasible, if you don't own previous versions or need certain new features. But if you aren't getting anything extra out of a new software version, uninstalling the new version and reinstalling the old may free up resources. Otherwise, pony up for a hardware upgrade. Adding system memory (RAM) will provide the most bang for your buck. Also, consider a newer (bigger and faster) hard drive or a new video card (with its own processor and video memory).



Hardware.

So far, our tips have focused on the software inside your PC, but there are some quick and inexpensive ways to speed up your hardware, too.

Cool down. An overheating processor can drastically affect speed. In fact, if the CPU (central processing unit) gets too hot, you'll have a clock speed of exactly zero. Even a slightly overheated system, though, will perform sporadically and often sluggishly. First, back up all your data. Then shut down and disconnect the power cable. Open the case (you'll probably need a screwdriver), reconnect the power, and boot up. Make sure all fans are running and are unobstructed; check for case fans in addition to a processor fan and heatsink. Shut down and unplug the system again. Make sure there is plenty of room for airflow within the case. Use cable ties to group wires and move them out of the way. Feel the processor fan or heat sink. It should be warm, but if you can't even stand to hold your finger to it for a second or two, you may have a heat problem. Purchase a newer or larger CPU fan or heatsink and invest $5 in a case fan, if you have a spot for one.

Update device drivers. Updated drivers can often breathe new life into old hardware. Better yet, they can help prevent hardware from bogging down the rest of the system. Check the manufacturers' Web sites for each of your hardware and peripheral devices. Download and install any updated drivers, rebooting as necessary. Either download and install drivers directly, or use Windows' Device Manager. Right-click My Computer and select Properties from the context menu. Under the Hardware tab, click the Device Manager button. Right-click each device (expand the categories by clicking the plus sign [+] on the left) and select Properties. Under the Driver tab, view details such as date and version number or click Update Driver to browse for (or let Windows search for) new driver files. And yes, WinXP lets you rollback a driver to a previous version or uninstall the driver entirely.

Add memory. What used to be a generous amount of system memory (64 or 128 MB) is now, under many circumstances, woefully inadequate. WinXP requires 128MB, but we recommend 256MB or even 512MB. If you upgraded the OS or added other new software, you may simply not have enough system memory. And if you expanded your hardware collection or just do more with your PC, adding more memory can make all the difference.

Check your system documentation for the type and amounts of memory the motherboard accepts. Most recent motherboards will hold two or three memory chips with a total capacity of 512MB or 1GB. Be careful to buy the right kind of chip, though. SDRAM, DDR, and EDO are all competing standards and aren't cross-compatible. Also, within each category, buy the fastest memory your system will support. More memory is the single best upgrade for your system—it provides the greatest performance improvement for the least cost (under $100 for 512MB). It will do more than any other single upgrade to speed up your system and improve overall performance. So get the fastest and the most memory your system supports and max out the motherboard.

When a good system goes bad, it's tempting to (figuratively) throw it out the window and go shopping. But most of the time, severe system slowdowns result from easily fixable software and hardware problems. With a little patience and a little troubleshooting, you can follow these steps to speed up your existing system and get back into the fast lane.

by Gregory Anderson

------------------------------------------

[ Windows XP Tips ]

More tips for your slow computer!

DISABLE INDEXING SERVICES


Indexing Services is a small little program that uses large amounts of RAM and can often make a computer endlessly loud and noisy. This system process indexes and updates lists of all the files that are on your computer. It does this so that when you do a search for something on your computer, it will search faster by scanning the index lists. If you don't search your computer often, or even if you do search often, this system service is completely unnecessary. To disable do the following:

1. Go to Start
2. Click Settings
3. Click Control Panel
4. Double-click Add/Remove Programs
5. Click the Add/Remove Window Components
6. Uncheck the Indexing services
7. Click Next

OPTIMISE DISPLAY SETTINGS

Windows XP can look sexy but displaying all the visual items can waste system resources. To optimise:

1.Go to Start
2. Click Settings
3. Click Control Panel
4. Click System
5. Click Advanced tab
6. In the Performance tab click Settings
7. Leave only the following ticked:
- Show shadows under menus
- Show shadows under mouse pointer
- Show translucent selection rectangle
- Use drop shadows for icons labels on the desktop
- Use visual styles on windows and buttons

DISABLE PERFORMANCE COUNTERS

Windows XP has a performance monitor utility which monitors several areas of your PC's performance. These utilities take up system resources so disabling is a good idea.

To disable:

1. download and install the Extensible Performance Counter List (http://www.microsoft.com/windows2000/remove404.mspx)
2.Then select each counter in turn in the 'Extensible performance counters' window and clear the 'performance counters enabled' checkbox at the bottom.button below.

SPEEDUP FOLDER BROWSING

You may have noticed that everytime you open my computer to browse folders that there is a slight delay. This is because Windows XP automatically searches for network files and printers everytime you open Windows Explorer. To fix this and to increase browsing significantly:

1. Open My Computer
2. Click on Tools menu
3. Click on Folder Options
4. Click on the View tab.
5. Uncheck the Automatically search for network folders and printers check box
6. Click Apply
7. Click Ok
8. Reboot your computer

IMPROVE MEMORY USAGE

Cacheman Improves the performance of your computer by optimizing the disk cache, memory and a number of other settings.

Once Installed:

1.Go to Show Wizard and select All
2.Run all the wizards by selecting Next or Finished until you are back to the main menu. Use the defaults unless you know exactly what you are doing.
3.Exit and Save Cacheman
4.Restart Windows

OPTIMISE YOUR INTERNET CONNECTION

There are lots of ways to do this but by far the easiest is to run TCP/IP Optimizer.

1. Download(www.speedguide.net/files/tcpoptimizer.exe) and install
2. Click the General Settings tab and select your Connection Speed (Kbps)
3. Click Network Adapter and choose the interface you use to connect to the Internet
4. Check Optimal Settings then Apply
5. Reboot

OPTIMIZE YOUR PAGEFILE

If you give your pagefile a fixed size it saves the operating system from needing to resize the page file.

1. Right click on My Computer and select Properties
2. Select the Advanced tab
3. Under Performance choose the Settings button
4. Select the Advanced tab again and under Virtual Memory select Change
5. Highlight the drive containing your page file and make the initial Size of the file the same as the Maximum Size of the file.

Windows XP sizes the page file to about 1.5X the amount of actual physical memory by default. While this is good for systems with smaller amounts of memory (under 512MB) it is unlikely that a typical XP desktop system will ever need 1.5 X 512MB or more of virtual memory. If you have less than 512MB of memory, leave the page file at its default size. If you have 512MB or more, change the ratio to 1:1 page file size to physical memory size.

RUN BOOTVIS - IMPROVE BOOT TIMES download from(www.majorgeeks.com) BootVis will significantly improve boot times

1. Download and Run
2. Select Trace
3. Select Next Boot and Driver Trace
4. A Trace Repetitions screen will appear, select Ok and Reboot
5. Upon reboot, BootVis will automatically start, analyze and log your system's boot process. When it's done, in the menu go to Trace and select Optimize System
6. Reboot.
7. When your machine has rebooted wait until you see the Optimizing System box appear. Be patient and wait for the process to complete

REMOVE THE DESKTOP PICTURE


Your desktop background consumes a fair amount of memory and can slow the loading time of your system. Removing it will improve performance.

1. Right click on Desktop and select Properties
2. Select the Desktop tab
3. In the Background window select None
4. Click Ok

REMOVE FONTS FOR SPEED

Fonts, especially TrueType fonts, use quite a bit of system resources. For optimal performance, trim your fonts down to just those that you need to use on a daily basis and fonts that applications may require.

1. Open Control Panel
2. Open Fonts folder
3. Move fonts you don't need to a temporary directory (e.g. C:\FONTBKUP?) just in case you need or want to bring a few of them back. The more fonts you uninstall, the more system resources you will gain.

DISABLE UNNECESSARY SERVICES

Because Windows XP has to be all things to all people it has many services running that take up system resources that you will never need. Below is a list of services that can be disabled on most machines:

Alerter
Clipbook
Computer Browser
Distributed Link Tracking Client
Fast User Switching
Help and Support - (If you use Windows Help and Support leave this enabled)
Human Interface Access Devices
Indexing Service
IPSEC Services
Messenger
Netmeeting Remote Desktop Sharing (disabled for extra security)
Portable Media Serial Number
Remote Desktop Help Session Manager (disabled for extra security)
Remote Procedure Call Locator
Remote Registry (disabled for extra security)
Remote Registry Service
Secondary Logon
Routing & Remote Access (disabled for extra security)
Server
SSDP Discovery Service - (Unplug n' Pray will disable this)
Telnet
TCP/IP NetBIOS Helper
Upload Manager
Universal Plug and Play Device Host
Windows Time
Wireless Zero Configuration (Do not disable if you use a wireless network)
Workstation
To disable these services:

Go to Start and then Run and type "services.msc"
Doubleclick on the service you want to change
Change the startup type to 'Disable"

TURN OFF SYSTEM RESTORE

System Restore can be a useful if your computer is having problems, however storing all the restore points can literally take up Gigabytes of space on your hard drive. To turn off System Restore:

Open Control Panel
Click on Performance and Maintenance
Click on System
Click on the System Restore tab
Tick 'Turn off System Restore on All Drives'
Click 'Ok'

DEFRAGMENT YOUR PAGEFILE

Keeping your pagefile defragmented can provide a major performance boost. One of the best ways of doing this is to creat a separate partition on your hard drive just for your page file, so that it doesn't get impacted by normal disk usage. Another way of keeping your pagefile defragmented is to run PageDefrag. This cool little app can be used to defrag your pagefile, and can also be set to defrag the pagefile everytime your PC starts. To install:

Download(www.sysinternals.com) and Run PageDefrag
Tick "Defrag at next Reboot",
Click "Ok"
Reboot

SPEEDUP FOLDER ACCESS - DISABLE LAST ACCESS UPDATE

If you have a lot of folders and subdirectories on your computer, when you access a directory XP wastes a lot of time updating the time stamp showing the last access time for that directory and for ALL sub directories. To stop XP doing this you need to edit the registry. If you are uncomfortable doing this then please do not attempt.

Go to Start and then Run and type "regedit"
Click through the file system until you get to "HKEY_LOCAL_MACHINE\System\Cur rentControlSet\Control\FileSys tem"
Right-click in a blank area of the window on the right and select 'DWORD Value'
Create a new DWORD Value called 'NtfsDisableLastAccessUpdate'
Then Right click on the new value and select 'Modify'
Change the Value Data to '1'
Click 'OK'

DISABLE SYSTEM SOUNDS

Surprisingly, the beeps that your computer makes for various system sounds can slow it down, particularly at startup and shut-down. To fix this turn off the system sounds:

Open Control Panel
Click Sounds and Audio Devices
Check Place volume icon in taskbar
Click Sounds Tab
Choose "No Sounds" for the Sound Scheme
Click "No"
Click "Apply"
Click "OK"

IMPROVE BOOT TIMES


A great new feature in M'zoft Windows XP is the ability to do a boot defragment. This places all boot files next to each other on the disk to allow for faster booting. By default this option in enables but on some builds it is not so below is how to turn it on.

Go to Start Menu and Click Run
Type in "Regedit" then click ok
Find "HKEY_LOCAL_MACHINE\SOFTWARE\M icrosoft\Dfrg\BootOpt imizeFunction"
Select "Enable" from the list on the right
Right on it and select "Modify"
Change the value to "Y to enable"
Reboot

IMPROVE SWAPFILE PERFORMANCE


If you have more than 256MB of RAM this tweak will considerably improve your performance. It basically makes sure that your PC uses every last drop of memory (faster than swap file) before it starts using the swap file.

Go to Start then Run
Type "msconfig.exe" then ok
Click on the System.ini tab
Expand the 386enh tab by clicking on the plus sign
Click on new then in the blank box type"ConservativeSwapfileUsage =1"
Click OK
Restart PC

MAKE YOUR MENUS LOAD FASTER

This is one of my favourite tweaks as it makes a huge difference to how fast your machine will 'feel'. What this tweak does is remove the slight delay between clicking on a menu and XP displaying the menu.

Go to Start then Run
Type 'Regedit' then click 'Ok'
Find "HKEY_CURRENT_USER\Control Panel\Desktop\"
Select "MenuShowDelay"
Right click and select "Modify'
Reduce the number to around "100"
This is the delay time before a menu is opened. You can set it to "0" but it can make windows really hard to use as menus will open if you just look at them - well move your mouse over them anyway. I tend to go for anywhere between 50-150 depending on my mood

MAKE PROGRAMS LOAD FASTER

This little tweak tends to work for most programs. If your program doesn't load properly just undo the change. For any program:

Right-click on the icon/shortcut you use to launch the program
Select properties
In the 'target' box, add ' /prefetch:1' at the end of the line.
Click "Ok"
Voila - your programs will now load faster.

IMPROVE XP SHUTDOWN SPEED


This tweak reduces the time XP waits before automatically closing any running programs when you give it the command to shutdown.

Go to Start then select Run
Type 'Regedit' and click ok
Find 'HKEY_CURRENT_USER\Control Panel\Desktop\'
Select 'WaitToKillAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'
Now select 'HungAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'
Now find 'HKEY_USERS\.DEFAULT\Control Panel\Desktop'
Select 'WaitToKillAppTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'
Now find 'HKEY_LOCAL_MACHINE\System\Cur rentControlSet\Control\'
Select 'WaitToKillServiceTimeout'
Right click and select 'Modify'
Change the value to '1000'
Click 'OK'

SPEED UP BOOT TIMES I


This tweak works by creating a batch file to clear the temp and history folders everytime you shutdown so that your PC doesn't waste time checking these folders the next time it boots. It's quite simple to implement:

1. Open Notepad and create a new file with the following entries:

RD /S /q "C:\Documents and Settings\"UserName without quotes"\Local Settings\History"
RD /S /q "C:\Documents and Settings\Default User\Local Settings\History"
RD /S /q "D:\Temp\" Deletes temp folder, type in the location of your temp folder"
2. Save the new as anything you like but it has to be a '.bat' file e.g. fastboot.bat or deltemp.bat
3. Click 'Start' then 'Run'
4. Type in 'gpedit.msc' and hit 'ok'
5. Click on 'Computer Configuration' then 'Windows Settings'
6. Double-click on 'Scripts' and then on 'Shutdown' 7. Click 'Add' and find the batch file that you created and then press 'Ok'

SPEED UP BOOT TIMES II

When your PC starts it usually looks for any bootable media in any floppy or cd-rom drives you have installed before it gets around to loading the Operating System from the HDD. This can waste valuable time. To fix this we need to make some changes to the Bios.

1. To enter the bios you usually press 'F2' or 'delete' when your PC starts

2. Navigate to the 'Boot' menu

3. Select 'Boot Sequence'

4. Then either move your Hard drive to the top position or set it as the 'First Device'

5. Press the 'Escape' key to leave the bios. Don't forget to save your settings before exiting

Note: Once this change has been made, you won't be able to boot from a floppy disc or a CD-rom. If for some strange reason you need to do this in the future, just go back into your bios, repeat the steps above and put your floppy or CD-rom back as the 'First Device'

SPEED UP BOOT TIMES III

When your computer boots up it usually has to check with the network to see what IP addresses are free and then it grabs one of these. By configuring a manually assigned IP address your boot time will improve. To do this do the following:

1. Click on 'Start' and then ''Connect To/Show All Connections'

2. Right-click your network adapter card and click 'Properties'.

3. On the 'General' tab, select 'TCP/IP' in the list of services and click 'Properties'

4.I n the TCP/IP properties, click 'Use the following address' and enter an IP address for your PC. If you are using a router this is usually 192.168.0.xx or 192.168.1.xx. If you are not sure what address you could check with your ISP or go to 'Start/run' and type 'cmd' and then 'ipconfig/all'. This will show your current IP settings which you will need to copy.

5. Enter the correct details for 'Subnet mask', 'Default gateway' and 'DNS Server'. Again if you are not sure what figures to enter use 'ipconfig/all' as in stage 4.

FREE UP MEMORY

I found this useful app via FixMyXP. ClearMem Is an Excellent Tool for speeding up your XP Computer (especially if your system has been on for awhile and you have a lot of applications open). What it does, is it Forces pages out of physical memory and reduces the size of running processes if working sets to a minimum. When you run this tool, the system pauses because of excessive high-priority activity associated with trimming the working sets. To run this tool, your paging file must be at least as large as physical memory. To Check your Paging File:

1. Go to your control panel, then click on 'System', then go to the 'Advanced' Tab, and Under 'Performance' click 'Settings' then the 'Advanced' Tab

2. On the Bottom you should see 'Virtual Memory' and a value. This is the value that must be at least as large as how much memory is in your system.

3. If the Virtual Memory Value is smaller than your system memory, click Change and change the Min Virtual Memory to a number that is greater than your total system memory, then click 'Set' and Reboot.

4. Once you have rebooted install ClearMem

ENSURE XP IS USING DMA MODE


XP enables DMA for Hard-Drives and CD-Roms by default on most ATA or ATAPI (IDE) devices. However, sometimes computers switch to PIO mode which is slower for data transfer - a typical reason is because of a virus. To ensure that your machine is using DMA:

1. Open 'Device Manager'

2. Double-click 'IDE ATA/ATAPI Controllers'

3. Right-click 'Primary Channel' and select 'Properties' and then 'Advanced Settings'

4. In the 'Current Transfer Mode' drop-down box, select 'DMA if Available' if the current setting is 'PIO Only'

ADD CORRECT NETWORK CARD SETTINGS

Some machines suffer from jerky graphics or high CPU usage even when a machine is idle. A possible solution for this, which, can also can help network performance is to:

1. RightClick 'My Computer'

2. Select 'Manage'

3. Click on 'Device Manager'

4. DoubleClick your network adaptor under 'Network Adapters'

5. In the new window, select the 'Advanced' tab

6. Select 'Connection Type' and select the correct type for your card and then Reboot

REMOVE ANNOYING DELETE CONFIRMATION MESSAGES

Although not strictly a performance tweak I love this fix as it makes my machine 'feel' faster. I hate the annoying 'are you sure?' messages that XP displays, especially if I have to use a laptop touchpad to close them. To remove these messages:

1. Right-click on the 'Recycle Bin' on the desktop and then click 'Properties'

2. Clear the 'Display Delete Confirmation Dialog' check box and click 'Ok'

If you do accidently delete a file don't worry as all is not lost. Just go to your Recycle Bin and 'Restore' the file.

DISABLE PREFETCH ON LOW MEMORY SYSTEMS

Prefetch is designed to speed up program launching by preloading programs into memory - not a good idea is memory is in short supply, as it can make programs hang. To disable prefetch:

1. Click 'Start' then 'Run'

2. Type in 'Regedit' then click 'Ok'

3. Navigate to 'HKEY_LOCAL_MACHINE\SYSTEM\Cur rentControlSet\Control\Session Manager\Memory Management\PrefetchParameters\ '

4. Right-click on "EnablePrefetcher" and set the value to '0'

5. Reboot.

( Any changes/errors containing in your new information in your system, will not be my fault. DO AT YOUR OWN RISK. )


------------------------------------------

Top 3 Registry Cleaners:

1. Advanced System Optimizer
WARNING: The site is marked red on McAfee SiteAdvisor as its links are also marked red.

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Advanced System Optimizer includes more than 30 tools for supercharging your PC's performance, and more than 200 tweaks for customizing Windows and improving its performance. New features include a Spyware Detective, an Icon Manager, a Media Files Organizer, and a comprehensive backup tool for Outlook and for files and folders. You can back up the registry and restore it if it's damaged by a virus attack. Additionally, the System Cleaner removes junk and obsolete files from the system, including files often missed by the system uninstaller as well as by defrag and scandisk programs. The Registry Cleaner ensures that invalid information is removed, and the Registry Defragger helps you get maximum speed from your computer.

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2. Fix-It Utilities

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Here are just a few of the features that make Fix-It such a strong solution for your PC problems:
Superb Protection, Tools and Maintenance
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Virus & Spyware Protection – Improved!
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Recovery Commander Built-In

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3. Ace Utilities

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Dozens of software utilities offer to help improve system performance. Each one covers several of the issues listed here, and some do even more. Most simply provide a common interface to access existing Windows tools (such as Disk Cleanup), but the convenience of having one console to handle everything is often worth the price. We review five such utilities below. Larger, more commercial system utility packages often create more problems than they solve by running in the background and taking up extra resources. The utilities listed below have the advantage of running only when you want them and offer easy-to-understand controls. All of them offer free trial periods.

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WANT TO KNOW ABOUT WIRELESS COMMUNICATION




Book Info
Covers the design fundamentals of cellular systems, including issues of frequency reuse, channel assignments, radio propagation, and both analog and digital modulation techniques. --This text refers to an out of print or unavailable edition of this title.

From the Back Cover

The indispensable guide to wireless communications—now fully revised and updated!

Wireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design. Building on his classic first edition, Theodore S. Rappaport covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs) that will transform communications in the coming years. Rappaport illustrates each key concept with practical examples, thoroughly explained and solved step by step. Coverage includes:

* An overview of key wireless technologies: voice, data, cordless, paging, fixed and mobile broadband wireless systems, and beyond
* Wireless system design fundamentals: channel assignment, handoffs, trunking efficiency, interference, frequency reuse, capacity planning, large-scale fading, and more
* Path loss, small-scale fading, multipath, reflection, diffraction, scattering, shadowing, spatial-temporal channel modeling, and microcell/indoor propagation
* Modulation, equalization, diversity, channel coding, and speech coding
* New wireless LAN technologies: IEEE 802.11a/b, HIPERLAN, BRAN, and other alternatives
* New 3G air interface standards, including W-CDMA, cdma2000, GPRS, UMTS, and EDGE
* Bluetooth wearable computers, fixed wireless and Local Multipoint Distribution Service (LMDS), and other advanced technologies
* Updated glossary of abbreviations and acronyms, and a thorough list of references
* Dozens of new examples and end-of-chapter problems

Whether you're a communications/network professional, manager, researcher, or student, Wireless Communications: Principles and Practice, Second Edition gives you an in-depth understanding of the state of the art in wireless technology—today's and tomorrow's.


See all Editorial Reviews
Product Details

* Hardcover: 736 pages
* Publisher: Prentice Hall PTR; 2 edition (January 10, 2002)
* Language: English
* ISBN-10: 0130422320
* ISBN-13: 978-0130422323

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Friday, April 25, 2008

The Unofficial MacGyver How-to Handbook



Don't you wish you could do all the cool tricks that MacGyver did?
Now you can

The Unofficial MacGyver How-to Handbook: Provides step-by-step instructions to MacGyver's most inventive tricks.

As viewers of the show, we had always assumed that MacGyver's tricks were fiction, the kind of stuff that only works on TV. Inspired by a rerun in which MacGyver seals an acid leak with a chocolate bar, we decided to dig up our old high school science books and find out if this stuff really works. The result of our investigation is The Unofficial MacGyver How-to Handbook: An illustrated primer to MacGyver's tricks complete with scientific explanations.


We provide step-by-step, how-to instructions that unlock the scientific secrets and spy genius of MacGyver's many tricks, including:

How to pick a lock with a pocket knife; How to develop film with orange juice; How to create homemade fog; How to use a paperclip to undress a woman AND disarm a missile!

Each entry includes: A description of the materials you need to perform the trick; Step-by-step instructions on how to accomplish the trick; The scientific explanation of why the trick works.

In depicting these tricks, The Unofficial MacGyver How-to Handbook: offers a mix of extreme scenarios and practical applications. So while you'll probably never have the thrill of breaking into a high security laboratory, you can feel like a secret agent while you develop photos in the kitchen sink with orange juice

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Wednesday, April 23, 2008

How to Double Firefox Speed

Why i choose mozzila firefox ?



Firefox is in my opinion the best browser ever made until now. It includes:

  • improved tabbed browsing
  • pop up blocking
  • integrated Goggle search
  • enhanced privacy controls
  • built-in phishing protection
  • online spell checking
  • lots of themes, interfaces, and extensions/addons

Mozilla Firefox officially supports:
  • Microsoft Windows
  • Linux
  • Mac OS X
  • nofficial Support:
  • Free BSD
  • OS/2
  • Solaris
  • SkyOS
  • BeOS
  • XP Professional x64 Edition

Here are some Tips&Tricks that can help you double the speed of Firefox.


1. Type about:config in the address bar and then press Enter.

2. In the filter search bar type network.http.pipelining. Be sure the value field is set
true,if not double-click to set true.
HTTP is the application-layer protocol that most web pages are transferred with. In
HTTP 1.1, multiple requests can be sent before any responses are received. This is known
as pipelining. Pipelining reduces page loading times, but not all servers support it.

3. Go back to the filter search bar and type network.http.pipelining.maxrequests.
Double-click this option and set its value to 8.

4. In the filter search bar and type network.http.proxy.pipelining. Once opened doubleclick
on it and set it to true.

5. In IPv6-capable DNS servers, an IPv4 address may be returned when an IPv6 address
is requested. It is possible for Mozilla to recover from this misinformation, but a
significant delay is introduced.
Type network.dns.disableIPv6 in the filter search bar and set this option to true by
double clicking on it.

6. CONTENT INTERRUPT PARSING
This preference controls if the application will interrupt parsing a page to respond to UI
events. It does not exist by default.
Right-click (Apple users ctrl-click) anywhere in the about:config window, select New
and then Boolean from the pop-up menu. Then:
A. Enter content.interrupt.parsing in the New boolean value pop-up window and click
OK
B. When prompted to choose the value for the new boolean, select true and click OK.

7. Rather than wait until a page has completely downloaded to display it to the user,
Mozilla applications will regularly render what has been received to that point. This
option controls the maximum amount of time the application will be unresponsive while
rendering pages.
Right-click (Apple users ctrl-click) anywhere in the about:config window, select New
and then Integer from the pop-up menu.
A. Enter content.max.tokenizing.time in the New integer value pop-up window and
click OK
B. You will be prompted to enter a value. Enter 2250000 and click OK.

8. CONTENT NOTIFY INTERVAL
This option sets the minimum amount of time to wait between reflows. Right-click
(Apple users ctrl-click) anywhere in the about:config window, select New and then
Integer from the pop-up menu.
A. Type content.notify.interval in the New integer value pop-up window and click OK.
B. You will be prompted to enter a value. Enter 750000 and click OK.

9. CONTENT NOTIFY ONTIMER
A. This option sets if to reflow pages at an interval any higher than that specified by
content.notify.interval. Right-click (Apple users ctrl-click) anywhere in the
about:config window and select New and then Boolean from the pop-up menu.
B. Type content.notify.ontimer in the New boolean value pop-up window and click OK.
C. You will be prompted to choose the value for the new boolean. Select true and click
OK.

10. Notify Backoffcount
This option controls the maximum number of times the content will do timer-based
reflows. After this number has been reached, the page will only reflow once it is finished
downloading. Right-click (Apple users ctrl-click) anywhere in the about:config window
and select New and then Integer from the pop-up menu.
A. Enter content.notify.backoffcount in the New integer value pop-up window and click
OK.
B. You will be prompted to enter a value. Enter 5 and click OK.

11. CONTENT SWITCH THRESHOLD
You can interact with a loading page when content.interrupt.parsing is set to true.
When a page is loading, the application has two modes: a high frequency interrupt mode
and a low frequency interrupt mode. The first one interrupts the parser more frequently to
allow for greater UI responsiveness during page load.
The low frequency interrupt mode interrupts the parser less frequently to allow for
quicker page load. The application enters high frequency interrupt mode when you move
the mouse or type on the keyboard and switch back to low frequency mode when you had
no activity for a certain amount of time. This preference controls that amount of time.
Right-click (Apple users ctrl-click) anywhere in the about:config window and select
New and then Integer from the pop-up menu.
A. Enter content.switch.threshold in the New integer value pop-up window and click
OK.
B. You will be prompted to enter a value. Enter 750000 and click OK.

12. NGLAYOUT INITIALPAINT DELAY
Mozilla applications render web pages incrementally, they display what’s been received
of a page before the entire page has been downloaded. Since the start of a web page
normally doesn’t have much useful information to display, Mozilla applications will wait
a short interval before first rendering a page. This preference controls that interval. Rightclick
(Apple users ctrl-click) anywhere in the about:config window and select New and
then Integer from the pop-up menu.
A. Enter nglayout.initialpaint.delay in the New integer value pop-up window and click
OK.
B. You will be prompted to enter a value. Enter 0 and click OK.

How-to fix MPEG videos using just one freeware (Windows)

If you download a lot of movies from Internet, you surely stumbled upon damaged MPEG (.mpg/.mpeg) files that don’t play as expected: for example, they play for just few minutes and then stop, or they freeze you video player, or just they don’t play at all. This problem often depends by a damaged video index or an improper join of clips in one big movie file etc.

There are several attempts to solve this problem if you search on the forums, but all these solutions need: lot of time & patience, and the usage of many software, not always freeware. So, after testing many of these methods and being unhappy with them, I decided to try solving the problem my own, and I arrived to a simple and nice solution that needs just one freeware program to be accomplished! The software you need is the great SuperConverted by eRightSoft.

Here the tutorial:

1. Download and install SuperConverter;

2. Run it and modify the settings as showed in the following screenshot,

taking particularly care of checking “Stream Copy” option for both audio and video parts;

3. Drag & drop your damaged MPEG movies in the right box, then right click on it -> “Output File Saving Management” and choose the folder into which you’d like to save your fixed movies (i use Desktop);

4. Wait some minutes, depending by how many movies you dragged&dropped;

5. Voilà: in your output folder you will find your fixed movies Play them with your favourite player to test if fixing procedure worked, then delete safely the damaged ones


DOWNLOAD:
eRightSoft Super Converter: http://wwww.erightsoft.com



How to Split File for upload use WinRar

Ok lets. do it..... you must have Winrar Installed in your computer.

Download : Winrar.

step 1: right click the file you want too split and upload

choose add to archive.

step 2: enter the size you want to split the file in too,


type in 100m (rapidshare will be OK with this, or pick a nuber that fits your needs)

REMEMBER :
if you put an "m" after the number winRAR will split it in to megabytes, if you don't put an "m" after the number winRAR will split it in to bytes