What are cookies? A Brief Tutorial

Cookie

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Maybe you're not aware of the fact that if you have the "allow cookies" feature in your browser on, websites can store all sorts of information on your harddrive. Cookies are small files that contain various kind of information that can be read bt websites when you visit them. The usual usage is to track demographics for advertising agencies that want to see just what kinds of consumers a certain site is attracting. Web sites also use cookies to keep your account information up-to-date. Then for instance when you visit your e-mail webbased account without being unlogged some hours later, you find yourself being logged on, even if you turn off your computer. Your login and password was simply stored on your harddrive in cookie file. This is security threat, in case that there is more persons who have the access to your computer.
Most of the browsers offer the possiblity to turn off the cookies, but some of sites like Hotmail.com require them to be turned on. In case you decided to allow cookies, at least never forget to log off from the websites when you're finishing visiting them.
Cookies may be set by the server with or without an expiration date. Cookies without an expiration date exist until the browser terminates, while cookies with an expiration date may be stored by the browser until the expiration date passes. Users may also manually delete cookies in order to save space or to avoid privacy issues.
As text, cookies are not executable. Because they are not executed, they cannot replicate themselves and are not viruses. However, due to the browser mechanism to set and read cookies, they can be used as spyware. Anti-spyware products may warn users about some cookies because cookies can be used to track people—a privacy concern, later causing possible malware.

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A tutorial about proxies

Proxy:

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Proxies are caches that relay data. When you configure your web browser to use a proxy, it never connects to the URL. Instead it always connects to the proxy server, and asks it to get the URL for you. It works similarly with other type of services such as IRC, ICQ etc. There'll won't be direct connection between you and the server, so your real IP address won't be revealed to the server. When you view a website on the server, the server won't see your IP. Some of web proxies do not support forwarding of the cookies whose support is required by some of the websites (for ex. Hotmail).
Here are some anonymous proxies that you can use to surf anonymously (notice that some of these may be a payed service):
Aixs - http://aixs.net/
Rewebber - http://www.anon.de/
Anonymizer - http://www.anonymizer.com/
The Cloak - http://www.the-cloak.com/
Clearly Drunk-http://clearly-drunk.com/
You'll highly probably find many websites that provide the lists of unauthorized proxies and re mailers . Such lists are being compiled usually with the help of port scanners or exploit scanners, scanning for computers with win gate or other proxies' backdoors. Using these proxies is illegal, and is being considered as unauthorized access of computer. If you get such list to your hands, check if the info is legal or compiled by script kiddie, and act accordingly.
If you anyhow decide not to use proxy, at least do not forget to remove your personal information from your browser. After you remove details like your name and e-mail address from your browser, the only info a Web site can sniff out is your ISP's address and geographical location. Also Java and JavaScript applets can take control of your browser unexpectedly, and if you are surfing to unknown and potentially dangerous places you should be aware of that. There are exploitable browser bugs (mainly Internet explorer ones) reported ever week.

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How to know the IP address of others using coding.

To Get And Show The IP address:

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To show the ip via JavaScript
Code:
var ip= '''''';
document.write("Your IP Address is :"+ip+" ");
*Remove double quotes in first line
________________________________________________________________________________
To show IP via ASP
code:
request.ServerVariables("REMOTE_ADDR")
________________________________________________________________________________
TO SHOW IP VIA PHP
Code:
$remote_address = getenv("REMOTE_ADDR");
echo "Your IP address is $remote_address.";
$browser_type = getenv("HTTP_USER_AGENT");
echo "You are using $browser_type.";
?>

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Commonly used ports by Trojans

Be careful when any suspicious activity happens on these ports.

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 TCP 1 Breach.2001, SocketsDeTroie.230, SocketsDeTroie.250

TCP 28 Amanda.200

TCP 31 MastersParadise.920

TCP 68 Subseven.100

TCP 142 NetTaxi.180

TCP 146 Infector.141, Intruder.100, Intruder.100

TCP 171 ATrojan.200

TCP 285 WCTrojan.100

TCP 286 WCTrojan.100

TCP 334 Backage.310

TCP 370 NeuroticKat.120, NeuroticKat.130

TCP 413 Coma.109

TCP 420 Breach.450

TCP 555 Id2001.100, PhaseZero.100, StealthSpy.100

TCP 623 Rtb666.160

TCP 660 Zaratustra.100

TCP 661 Noknok.800, Noknok.820

TCP 666 BackConstruction.210, BackConstruction.250, Bla.100, Bla.200, Bla.400, Bla.503, Cain.150, Dimbus.100, Noknok.820, Ripper.100, SatansBackdoor.100, SatansBackdoor.101, SatansBackdoor.102, Unicorn.100, Unicorn.101, Unicorn.110

TCP 667 SniperNet.210, Snipernet.220

TCP 668 Unicorn.101, Unicorn.110

TCP 680 Rtb666.160

TCP 777 Tiny.100, Undetected.230, Undetected.300, Undetected.310, Undetected.320, Undetected.330, Undetected.331, Undetected.332

TCP 785 NetworkTerrorist.100

TCP 800 NeuroticKitten.010

TCP 831 NeuroticKat.100, NeuroticKat.120, NeuroticKat.130

TCP 901 NetDevil.130, NetDevil.140

TCP 1000 DerSpaeher.200

TCP 1001 Silencer.100

TCP 1008 AutoSpy.100

TCP 1010 DerSpaeher.200

TCP 1015 Doly.150

TCP 1111 TPort.100

TCP 1130 Noknok.800, Noknok.820

TCP 1207 SoftWAR.100

TCP 1243 Subseven.100, SubSeven.110, SubSeven.180, SubSeven.190, Subseven.200

TCP 1245 VoodooDoll.006

TCP 1269 Matrix.130

TCP 1480 RemoteHack.130

TCP 1568 RemoteHack.100, RemoteHack.110

TCP 1600 DirectConnection.100

TCP 1601 DirectConnection.100

TCP 1602 DirectConnection.100

TCP 1634 NetCrack.100

TCP 1784 Snid.120, Snid.212

TCP 1999 TransmissionScout.100, TransmissionScout.110

TCP 2000 ATrojan.200, InsaneNetwork.400

TCP 2001 DIRT.220, TrojanCow.100

TCP 2003 TransmissionScout.100, TransmissionScout.110

TCP 2023 RipperPro.100

TCP 2040 InfernoUploader.100

TCP 2115 Bugs.100

TCP 2140 DeepThroat.100, DeepThroat.200, DeepThroat.310

TCP 2332 SilentSpy.202

TCP 2589 Dagger.140

TCP 2600 DigitalRootbeer.100

TCP 2989 Rat.200

TCP 3128 MastersParadise.970

TCP 3129 MastersParadise.920, MastersParadise.970

TCP 3150 DeepThroat.100, DeepThroat.200, DeepThroat.310, MiniBacklash.110

TCP 3215 BlackStar.100, Ghost.230

TCP 3333 Daodan.123

TCP 3410 OptixPro.100, OptixPro.110

TCP 3456 Force.155, TerrorTrojan.100

TCP 3505 AutoSpy.130, AutoSpy.140

TCP 3586 Snid.120, Snid.212

TCP 3700 PortalOfDoom.100

TCP 3723 Mantis.100

TCP 3800 Eclypse.100

TCP 3996 RemoteAnything.364

TCP 4000 SkyDance.220, SkyDance.229

TCP 4201 Wartrojan.160, Wartrojan.200

TCP 4225 SilentSpy.202

TCP 4321 Bobo.100

TCP 4444 AlexTrojan.200, Crackdown.100

TCP 4488 EventHorizon.100

TCP 4523 Celine.100

TCP 4545 InternalRevise.100, RemoteRevise.150

TCP 4567 FileNail.100

TCP 4666 Mneah.100

TCP 4950 ICQTrojan.100

TCP 5005 Aladino.060

TCP 5025 Keylogger.WMRemote.100

TCP 5031 NetMetro.104

TCP 5032 NetMetro.104

TCP 5033 NetMetro.104

TCP 5050 RoxRat.100

TCP 5151 OptixLite.020, OptixLite.030, OptixLite.040

TCP 5190 MBomber.100

TCP 5277 WinShell.400

TCP 5343 WCRat.100

TCP 5400 BackConstruction.120, BackConstruction.150, BladeRunner.080, DeepThroat.300

TCP 5401 BackConstruction.120, BackConstruction.150, BackConstruction.210, BackConstruction.250, BladeRunner.080, DeepThroat.300, Mneah.100

TCP 5402 BackConstruction.210, BackConstruction.250, BladeRunner.080, DeepThroat.300, Mneah.100

TCP 5534 TheFlu.100

TCP 5550 XTCP.200, XTCP.201

TCP 5555 Noxcape.100, Noxcape.200

TCP 5695 Assassin.100

TCP 5714 WinCrash.100

TCP 5741 WinCrash.100

TCP 5742 WinCrash.103

TCP 5802 Y3KRat.160

TCP 5810 Y3KRat.160

TCP 5838 Y3KRat.170

TCP 5858 Y3KRat.110, Y3KRat.120, Y3KRat.140

TCP 5880 Y3KRat.140

TCP 5881 Y3KRat.110, Y3KRat.120, Y3KRat.140

TCP 5882 Y3KRat.100, Y3KRat.110, Y3KRat.120, Y3KRat.140, Y3KRat.150

TCP 5883 Y3KRat.110, Y3KRat.140

TCP 5884 Y3KRat.140, Y3KRat.150

TCP 5885 Y3KRat.110, Y3KRat.120, Y3KRat.140

TCP 5886 Y3KRat.120, Y3KRat.140

TCP 5887 Y3KRat.110, Y3KRat.120, Y3KRat.140

TCP 5888 Y3KRat.100, Y3KRat.110, Y3KRat.120, Y3KRat.140, Y3KRat.150

TCP 5889 Y3KRat.100, Y3KRat.110, Y3KRat.120, Y3KRat.140, Y3KRat.150

TCP 5890 Y3KRat.140

TCP 6400 Thething.100, Thething.150

TCP 6556 AutoSpy.120, AutoSpy.122

TCP 6655 Aqua.020

TCP 6660 LameSpy.095

TCP 6666 LameRemote.100, ProjectMayhem.100

TCP 6669 Vampire.100

TCP 6670 DeepThroat.200, DeepThroat.210

TCP 6671 DeepThroat.310

TCP 6699 HostControl.101

TCP 6711 DeepThroat.300, Noknok.820, SubSeven.180, SubSeven.190

TCP 6712 Subseven.100

TCP 6713 Subseven.100

TCP 6767 NTRC.120

TCP 6776 SubSeven.180, SubSeven.190, Subseven.200

TCP 6789 Doly.200

TCP 6796 SubSeven.214

TCP 6912 ShitHeep.100

TCP 6939 Indoctrination.100

TCP 6953 Lithium.100

TCP 6969 2000Cracks.100, Bigorna.100, Danton.110, Danton.210, Danton.220, Danton.310, Danton.320, Danton.330, GateCrasher.110, NetController.108, Sparta.110, VagrNocker.120

TCP 6970 Danton.330

TCP 7001 Freak88.100

TCP 7119 Massaker.100

TCP 7200 Massaker.110

TCP 7300 Coced.221

TCP 7301 Coced.221

TCP 7306 NetSpy.200, NetSpy.200

TCP 7410 Phoenix.190, Phoenix.200

TCP 7511 Genue.100

TCP 7609 Snid.120, Snid.212

TCP 7614 Wollf.130

TCP 7648 BlackStar.100, Ghost.230

TCP 7788 Last.2000, Matrix.200

TCP 7826 MiniOblivion.010, Oblivion.010

TCP 7887 SmallFun.110

TCP 7891 Revenger.100

TCP 7979 VagrNocker.200

TCP 7997 VagrNocker.200

TCP 8000 XConsole.100

TCP 8011 Way.240

TCP 8012 Ptakks.215, Ptakks.217

TCP 8110 LoseLove.100

TCP 8111 LoseLove.100

TCP 8301 LoseLove.100

TCP 8302 LoseLove.100

TCP 8372 NetBoy.100

TCP 8720 Connection.130

TCP 8734 AutoSpy.110

TCP 8811 Force.155

TCP 8899 Last.2000

TCP 9000 Aristotles.100

TCP 9301 LoseLove.100

TCP 9400 InCommand.100, InCommand.110, InCommand.120, InCommand.130, InCommand.140, InCommand.150, InCommand.153, InCommand.160, InCommand.167, InCommand.170

TCP 9401 InCommand.100, InCommand.110, InCommand.170

TCP 9402 InCommand.100, InCommand.110

TCP 9561 CRatPro.110

TCP 9563 CRatPro.110

TCP 9580 TheefLE.100

TCP 9696 Danton.210, Ghost.230

TCP 9697 Danton.320, Danton.330, Ghost.230

TCP 9870 R3C.100

TCP 9872 PortalOfDoom.100

TCP 9873 PortalOfDoom.100

TCP 9874 PortalOfDoom.100

TCP 9875 PortalOfDoom.100

TCP 9876 Rux.100, SheepGoat.100

TCP 9877 SmallBigBrother.020

TCP 9878 SmallBigBrother.020, TransmissionScout.100, TransmissionScout.110, TransmissionScout.120

TCP 9879 SmallBigBrother.020

TCP 9999 ForcedEntry.100, Infra.100, Prayer.120, Prayer.130, TakeOver.200, TakeOver.300

TCP 10001 DTr.130, DTr.140

TCP 10013 Amanda.200

TCP 10067 PortalOfDoom.100

TCP 10100 Gift.240

TCP 10101 NewSilencer.100

TCP 10167 PortalOfDoom.100

TCP 10528 HostControl.100, HostControl.260

TCP 10607 Coma.109

TCP 10666 Ambush.100

TCP 11011 Amanda.200

TCP 11050 HostControl.101

TCP 11051 HostControl.100, HostControl.260

TCP 11223 AntiNuke.100, Progenic.100, Progenic.110

TCP 11225 Cyn.100, Cyn.103, Cyn.120

TCP 11306 Noknok.800, Noknok.820

TCP 11831 Katux.200, Latinus.140, Latinus.150, Pest.100, Pest.400

TCP 11991 PitfallSurprise.100

TCP 12043 Frenzy.2000

TCP 12345 Fade.100, Netbus.160, Netbus.170, VagrNocker.400

TCP 12346 Netbus.160, Netbus.170

TCP 12348 Bionet.210, Bionet.261, Bionet.280, Bionet.302, Bionet.305, Bionet.311, Bionet.313, Bionet.316, Bionet.317

TCP 12349 Bionet.084, Bionet.261, Bionet.280, Bionet.302, Bionet.305, Bionet.311, Bionet.313, Bionet.314, Bionet.316, Bionet.317, Bionet.401, Bionet.402

TCP 12389 KheSanh.210

TCP 12478 Bionet.210

TCP 12623 Buttman.090, Buttman.100

TCP 12624 Buttman.090, Buttman.100

TCP 12625 Buttman.100

TCP 12904 Akropolis.100, Rocks.100

TCP 13473 Chupacabra.100

TCP 13753 AFTP.010

TCP 14100 Eurosol.100

TCP 14194 CyberSpy.840

TCP 14286 HellDriver.100

TCP 14500 PCInvader.050, PCInvader.060, PCInvader.070

TCP 14501 PCInvader.060, PCInvader.070

TCP 14502 PCInvader.050, PCInvader.060, PCInvader.070

TCP 14503 PCInvader.050, PCInvader.060, PCInvader.070

TCP 14504 PCInvader.050, PCInvader.060

TCP 15092 HostControl.100, HostControl.260

TCP 15382 SubZero.100

TCP 15432 Cyn.210

TCP 15555 ICMIBC.100

TCP 16322 LastDoor.100

TCP 16484 MoSucker.110

TCP 16661 Dfch.010

TCP 16969 Progenic.100

TCP 16982 AcidShiver.100

TCP 17300 Kuang.200

TCP 17499 CrazzyNet.370, CrazzyNet.375, CrazzyNet.521

TCP 17500 CrazzyNet.370, CrazzyNet.375, CrazzyNet.521

TCP 17569 Infector.141, Infector.160, Infector.170, Infector.180, Infector.190, Infector.200, Intruder.100, Intruder.100

TCP 17593 AudioDoor.120

TCP 19191 BlueFire.035, BlueFire.041

TCP 19604 Metal.270

TCP 19605 Metal.270

TCP 19991 Dfch.010

TCP 20000 Millenium.100

TCP 20001 Millenium.100, PshychoFiles.180

TCP 20002 AcidKor.100, PshychoFiles.180

TCP 20005 MoSucker.200, MoSucker.210, MoSucker.220

TCP 21212 Schwindler.182

TCP 21554 Exploiter.100, Exploiter.110, Girlfriend.130, GirlFriend.135

TCP 21579 Breach.2001

TCP 21584 Breach.2001

TCP 21684 Intruse.134

TCP 22068 AcidShiver.110

TCP 22115 Cyn.120

TCP 22222 Prosiak.047, Ruler.141, Rux.300, Rux.400, Rux.500, Rux.600

TCP 22223 Rux.400, Rux.500, Rux.600

TCP 22456 Bla.200, Bla.503

TCP 22457 AcidShiver.120, Bla.200, Bla.503

TCP 22784 Intruzzo.110

TCP 22845 Breach.450

TCP 22847 Breach.450

TCP 23005 Infinaeon.110, NetTrash.100, Oxon.110, WinRat.100

TCP 23006 Infinaeon.110, NetTrash.100, Oxon.110, WinRat.100

TCP 23032 Amanda.200

TCP 23432 Asylum.010, Asylum.012, Asylum.013, Asylum.014, MiniAsylum.110

TCP 23456 EvilFTP.100, VagrNocker.400

TCP 23476 DonaldDick.153, DonaldDick.154, DonaldDick.155

TCP 23477 DonaldDick.153

TCP 24000 Infector.170

TCP 24307 Wildek.020

TCP 25386 MoonPie.220

TCP 25486 MoonPie.220

TCP 25555 FreddyK.100, FreddyK.200

TCP 25556 FreddyK.100

TCP 25685 MoonPie.010, MoonPie.012, MoonPie.130, MoonPie.220, MoonPie.240, MoonPie.400

TCP 25686 MoonPie.135, MoonPie.200, MoonPie.400

TCP 25982 MoonPie.135, MoonPie.200

TCP 26274 Delta.050

TCP 27160 MoonPie.135, MoonPie.200

TCP 27184 Alvgus.100, Alvgus.800

TCP 27374 Muerte.110, Subseven.210, SubSeven.213

TCP 28429 Hack'a'Tack.2000

TCP 28430 Hack'a'Tack.2000

TCP 28431 Hack'a'Tack.2000

TCP 28432 Hack'a'Tack.2000

TCP 28433 Hack'a'Tack.2000

TCP 28434 Hack'a'Tack.2000

TCP 28435 Hack'a'Tack.2000

TCP 28436 Hack'a'Tack.2000

TCP 29559 DuckToy.100, DuckToy.101, Katux.200, Latinus.140, Latinus.150, Pest.100, Pest.400

TCP 29891 Unexplained.100

TCP 30000 Infector.170

TCP 30001 Error32.100

TCP 30003 LamersDeath.100

TCP 30029 AOLTrojan.110

TCP 30100 NetSphere.127, NetSphere.130, NetSphere.131

TCP 30101 NetSphere.127, NetSphere.130, NetSphere.131

TCP 30102 NetSphere.127, NetSphere.130, NetSphere.131

TCP 30103 NetSphere.131

TCP 30947 Intruse.134

TCP 31320 LittleWitch.400, LittleWitch.420

TCP 31337 BackOrifice.120, Khaled.100, OPC.200

TCP 31415 Lithium.101

TCP 31416 Lithium.100, Lithium.101

TCP 31557 Xanadu.110

TCP 31631 CleptoManicos.100

TCP 31745 Buschtrommel.100, Buschtrommel.122

TCP 31785 Hack'a'Tack.100, Hack'a'Tack.112

TCP 31787 Hack'a'Tack.100, Hack'a'Tack.112

TCP 31789 Hack'a'Tack.100, Hack'a'Tack.112

TCP 31791 Hack'a'Tack.100, Hack'a'Tack.112

TCP 31887 BDDT.100

TCP 31889 BDDT.100

TCP 32100 ProjectNext.053

TCP 32418 AcidBattery.100

TCP 32791 Akropolis.100, Rocks.100

TCP 33291 RemoteHak.001

TCP 33333 Blackharaz.100, Prosiak.047, SubSeven.214

TCP 33577 SonOfPsychward.020

TCP 34324 TelnetServer.100

TCP 34763 Infector.180, Infector.190, Infector.200

TCP 35000 Infector.190, Infector.200

TCP 35600 Subsari.140

TCP 36794 BugBear.100

TCP 37237 Mantis.020

TCP 37651 YAT.210

TCP 37653 YAT.310

TCP 40308 Subsari.140

TCP 40412 TheSpy.100

TCP 40421 MastersParadise.970

TCP 40422 MastersParadise.970

TCP 40999 DiemsMutter.110, DiemsMutter.140

TCP 41626 Shah.100

TCP 44444 Prosiak.070

TCP 45673 Akropolis.100, Rocks.100

TCP 47262 Delta.050

TCP 48006 Fragglerock.200

TCP 49683 HolzPferd.210

TCP 50000 Infector.180

TCP 50130 Enterprise.100

TCP 50766 Fore.100

TCP 51234 Cyn.210

TCP 51966 Cafeini.080, Cafeini.110

TCP 54321 PCInvader.010

TCP 57341 NetRaider.100

TCP 57922 Bionet.084

TCP 58008 Tron.100

TCP 58009 Tron.100

TCP 59090 AcidReign.200

TCP 59211 DuckToy.100, DuckToy.101

TCP 59345 NewFuture.100

TCP 60000 DeepThroat.300, MiniBacklash.100, MiniBacklash.101, MiniBacklash.101

TCP 60411 Connection.100, Connection.130

TCP 60412 Connection.130

TCP 60552 RoxRat.100

TCP 63536 InsaneNetwork.500

TCP 63878 AphexFTP.100

TCP 63879 AphexFTP.100

TCP 64969 Lithium.100

TCP 65000 Socket.100

UDP 1 SocketsDeTroie.250

UDP 666 Bla.200, Bla.400, Bla.503, Noknok.820

UDP 1130 Noknok.800, Noknok.820

UDP 2140 DeepThroat.100, DeepThroat.200, DeepThroat.310

UDP 2989 Rat.200

UDP 3128 MastersParadise.970

UDP 3129 MastersParadise.920, MastersParadise.970

UDP 3150 DeepThroat.100, DeepThroat.200, DeepThroat.310, MiniBacklash.110

UDP 3333 Daodan.123

UDP 3800 Eclypse.100

UDP 3996 RemoteAnything.364

UDP 4000 RemoteAnything.364

UDP 5555 Daodan.123

UDP 5881 Y3KRat.110, Y3KRat.140

UDP 5882 Y3KRat.100, Y3KRat.110, Y3KRat.120, Y3KRat.140, Y3KRat.150

UDP 5883 Y3KRat.110, Y3KRat.140

UDP 5884 Y3KRat.140, Y3KRat.150

UDP 5885 Y3KRat.110, Y3KRat.120, Y3KRat.140

UDP 5886 Y3KRat.120, Y3KRat.140

UDP 5887 Y3KRat.110, Y3KRat.120, Y3KRat.140

UDP 5888 Y3KRat.100, Y3KRat.110, Y3KRat.120, Y3KRat.150

UDP 6953 Lithium.100

UDP 8012 Ptakks.217

UDP 10067 PortalOfDoom.100

UDP 10167 PortalOfDoom.100

UDP 10666 Ambush.100

UDP 11225 Cyn.100, Cyn.103, Cyn.120

UDP 11306 Noknok.800, Noknok.820

UDP 12389 KheSanh.210

UDP 12623 Buttman.090, Buttman.100

UDP 12625 Buttman.100

UDP 14100 Eurosol.100

UDP 23476 DonaldDick.155

UDP 26274 Delta.050

UDP 27184 Alvgus.100

UDP 28431 Hack'a'Tack.2000

UDP 28432 Hack'a'Tack.2000

UDP 28433 Hack'a'Tack.2000

UDP 28434 Hack'a'Tack.2000

UDP 28435 Hack'a'Tack.2000

UDP 28436 Hack'a'Tack.2000

UDP 29891 Unexplained.100

UDP 30103 NetSphere.131

UDP 31320 LittleWitch.400, LittleWitch.420

UDP 31337 BackOrifice.120, OPC.200

UDP 31416 Lithium.100, Lithium.101

UDP 31789 Hack'a'Tack.100, Hack'a'Tack.112

UDP 31791 Hack'a'Tack.100, Hack'a'Tack.112

UDP 33333 Blackharaz.100

UDP 47262 Delta.050

UDP 49683 HolzPferd.210

UDP 60000 MiniBacklash.100

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Make Firefox to run very much faster

In the URL bar, type “about:config” and press enter. This will bring up the configuration “menu” where you can change the parameters of Firefox.
These settings are effective for bradband connection.
Double Click on the following settins and put in the numbers below - for the true / false booleans - they’ll change when you double click.

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Code:
browser.tabs.showSingleWindowModePrefs – true
network.http.max-connections – 48
network.http.max-connections-per-server – 16
network.http.max-persistent-connections-per-proxy – 8
network.http.max-persistent-connections-per-server – 4
network.http.pipelining – true
network.http.pipelining.maxrequests – 100
network.http.proxy.pipelining – true
network.http.request.timeout – 300One more thing… Right-click somewhere on that screen and add a NEW -> Integer. Name it “nglayout.initialpaint.delay” and set its value to “0”. This value is the amount of time the browser waits before it acts on information it receives. Since you’re broadband - it shouldn’t have to wait.
Last but important advice try to use only useful addons for Firefox.
Njoy.

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Create Shortcut for Quick shutdown and reboot

One-Click Shutdown and Reboot

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First, create a shortcut on your desktop by right-clicking on the desktop, choosing New, and then choosing Shortcut. The Create Shortcut Wizard appears. In the box asking for the location of the shortcut, type shutdown. After you create the shortcut, double-clicking on it will shut down your PC.

But we can do much more with a shutdown shortcut than merely shut down your PC. You can add any combination of several switches to do extra duty, like this:

shutdown -r -t 01 -c "Rebooting your PC"
Double-clicking on that shortcut will reboot your PC after a one-second delay and display the message "Rebooting your PC." The shutdown command includes a variety of switches you can use to customize it.
lists all of them and describes their use.
shutdown -s -t 03 -c "I will be back soon !"
shutdown -r -t 03 -c "Just a restart ;)!"

• -s Shuts down the Computer.
• -l Logs off the current user.
• -t nn Indicates the duration of delay, in seconds, before performing the action.
• -c "textmsg"
• Displays a message in the System Shutdown window(maximum allowed characters are 127) .Quotation marks are mandatory.
• -f Forces any running applications to quit.
• -r Reboots the Computer.

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Important Keyboard Shortcuts

Some of the basic key combinations are:

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Windows key + R = Run menu

This is usually followed by:
cmd = Command Prompt
iexplore + "web address" = Internet Explorer
compmgmt.msc = Computer Management
dhcpmgmt.msc = DHCP Management
dnsmgmt.msc = DNS Management
services.msc = Services
eventvwr = Event Viewer
dsa.msc = Active Directory Users and Computers
dssite.msc = Active Directory Sites and Services
Windows key + E = Explorer

ALT + Tab = Switch between windows

ALT, Space, X = Maximize window

CTRL + Shift + Esc = Task Manager

Windows key + Break = System properties

Windows key + F = Search

Windows key + D = Hide/Display all windows

CTRL + C = copy

CTRL + X = cut

CTRL + V = paste
Keyboard Shortcuts

[Alt] and [Esc] Switch between running applications

[Alt] and letter Select menu item by underlined letter

[Ctrl] and [Esc] Open Program Menu

[Ctrl] and [F4] Close active document or group windows (does not work with some applications)

[Alt] and [F4] Quit active application or close current window

[Alt] and [-] Open Control menu for active document

Ctrl] Lft., Rt. arrow Move cursor forward or back one word

Ctrl] Up, Down arrow Move cursor forward or back one paragraph

[F1] Open Help for active application

Windows+M Minimize all open windows

Shift+Windows+M Undo minimize all open windows

Windows+F1 Open Windows Help

Windows+Tab Cycle through the Taskbar buttons

Windows+Break Open the System Properties dialog box



acessability shortcuts

Right SHIFT for eight seconds........ Switch FilterKeys on and off.

Left ALT +left SHIFT +PRINT SCREEN....... Switch High Contrast on and off.

Left ALT +left SHIFT +NUM LOCK....... Switch MouseKeys on and off.

SHIFT....... five times Switch StickyKeys on and off.

NUM LOCK...... for five seconds Switch ToggleKeys on and off.

explorer shortcuts

END....... Display the bottom of the active window.

HOME....... Display the top of the active window.

NUM LOCK+ASTERISK....... on numeric keypad (*) Display all subfolders under the selected folder.

NUM LOCK+PLUS SIGN....... on numeric keypad (+) Display the contents of the selected folder.

NUM LOCK+MINUS SIGN....... on numeric keypad (-) Collapse the selected folder.

LEFT ARROW...... Collapse current selection if it's expanded, or select parent folder.

RIGHT ARROW....... Display current selection if it's collapsed, or select first subfolder.




Type the following commands in your Run Box (Windows Key + R) or Start Run

devmgmt.msc = Device Manager
msinfo32 = System Information
cleanmgr = Disk Cleanup
ntbackup = Backup or Restore Wizard (Windows Backup Utility)
mmc = Microsoft Management Console
excel = Microsoft Excel (If Installed)
msaccess = Microsoft Access (If Installed)
powerpnt = Microsoft PowerPoint (If Installed)
winword = Microsoft Word (If Installed)
frontpg = Microsoft FrontPage (If Installed)
notepad = Notepad
wordpad = WordPad
calc = Calculator
msmsgs = Windows Messenger
mspaint = Microsoft Paint
wmplayer = Windows Media Player
rstrui = System Restore
netscp6 = Netscape 6.x
netscp = Netscape 7.x
netscape = Netscape 4.x
waol = America Online
control = Opens the Control Panel
control printers = Opens the Printers Dialog


internetbrowser

type in u're adress "google", then press [Right CTRL] and [Enter]
add www. and .com to word and go to it



For Windows XP:

Copy. CTRL+C
Cut. CTRL+X
Paste. CTRL+V
Undo. CTRL+Z
Delete. DELETE
Delete selected item permanently without placing the item in the Recycle Bin. SHIFT+DELETE
Copy selected item. CTRL while dragging an item
Create shortcut to selected item. CTRL+SHIFT while dragging an item
Rename selected item. F2
Move the insertion point to the beginning of the next word. CTRL+RIGHT ARROW
Move the insertion point to the beginning of the previous word. CTRL+LEFT ARROW
Move the insertion point to the beginning of the next paragraph. CTRL+DOWN ARROW
Move the insertion point to the beginning of the previous paragraph. CTRL+UP ARROW
Highlight a block of text. CTRL+SHIFT with any of the arrow keys
Select more than one item in a window or on the desktop, or select text within a document. SHIFT with any of the arrow keys
Select all. CTRL+A
Search for a file or folder. F3
View properties for the selected item. ALT+ENTER
Close the active item, or quit the active program. ALT+F4
Opens the shortcut menu for the active window. ALT+SPACEBAR
Close the active document in programs that allow you to have multiple documents open simultaneously. CTRL+F4
Switch between open items. ALT+TAB
Cycle through items in the order they were opened. ALT+ESC
Cycle through screen elements in a window or on the desktop. F6
Display the Address bar list in My Computer or Windows Explorer. F4
Display the shortcut menu for the selected item. SHIFT+F10
Display the System menu for the active window. ALT+SPACEBAR
Display the Start menu. CTRL+ESC
Display the corresponding menu. ALT+Underlined letter in a menu name
Carry out the corresponding command. Underlined letter in a command name on an open menu
Activate the menu bar in the active program. F10
Open the next menu to the right, or open a submenu. RIGHT ARROW
Open the next menu to the left, or close a submenu. LEFT ARROW
Refresh the active window. F5
View the folder one level up in My Computer or Windows Explorer. BACKSPACE
Cancel the current task. ESC
SHIFT when you insert a CD into the CD-ROM drive Prevent the CD from automatically playing.

Use these keyboard shortcuts for dialog boxes:

To Press
Move forward through tabs. CTRL+TAB
Move backward through tabs. CTRL+SHIFT+TAB
Move forward through options. TAB
Move backward through options. SHIFT+TAB
Carry out the corresponding command or select the corresponding option. ALT+Underlined letter
Carry out the command for the active option or button. ENTER
Select or clear the check box if the active option is a check box. SPACEBAR
Select a button if the active option is a group of option buttons. Arrow keys
Display Help. F1
Display the items in the active list. F4
Open a folder one level up if a folder is selected in the Save As or Open dialog box. BACKSPACE

If you have a Microsoft Natural Keyboard, or any other compatible keyboard that includes the Windows logo key and the Application key , you can use these keyboard shortcuts:


Display or hide the Start menu. WIN Key
Display the System Properties dialog box. WIN Key+BREAK
Show the desktop. WIN Key+D
Minimize all windows. WIN Key+M
Restores minimized windows. WIN Key+Shift+M
Open My Computer. WIN Key+E
Search for a file or folder. WIN Key+F
Search for computers. CTRL+WIN Key+F
Display Windows Help. WIN Key+F1
Lock your computer if you are connected to a network domain, or switch users if you are not connected to a network domain. WIN Key+ L
Open the Run dialog box. WIN Key+R
Open Utility Manager. WIN Key+U

accessibility keyboard shortcuts:

Switch FilterKeys on and off. Right SHIFT for eight seconds
Switch High Contrast on and off. Left ALT+left SHIFT+PRINT SCREEN
Switch MouseKeys on and off. Left ALT +left SHIFT +NUM LOCK
Switch StickyKeys on and off. SHIFT five times
Switch ToggleKeys on and off. NUM LOCK for five seconds
Open Utility Manager. WIN Key+U

shortcuts you can use with Windows Explorer:


Display the bottom of the active window. END
Display the top of the active window. HOME
Display all subfolders under the selected folder. NUM LOCK+ASTERISK on numeric keypad (*)
Display the contents of the selected folder. NUM LOCK+PLUS SIGN on numeric keypad (+)
Collapse the selected folder. NUM LOCK+MINUS SIGN on numeric keypad (-)
Collapse current selection if it's expanded, or select parent folder. LEFT ARROW
Display current selection if it's collapsed, or select first subfolder. RIGHT ARROW

Read More ->>

My PC crashes very frequently

Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."

You have just been struck by the Blue Screen of Death. Anyone who uses Microsoft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?

---

1 Hardware conflict

The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.

For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.

If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:

* Start-Settings-Control Panel-System-Device Manager.

Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.

Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.

Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).

When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.

To be fair to Microsoft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.

2 Bad Ram

Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.

But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.

One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.

Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.

EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.

3 BIOS settings

Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.
(but differ on most of machines).
Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.

A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.

Microsoft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).

4 Hard disk drives

After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to

* Start-Programs-Accessories-System Tools-Disk Defragmenter

This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.

The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).

Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to

* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.

Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.

Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to

* Start-Programs-Accessories-System Tools-ScanDisk

Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.

5 Fatal OE exceptions and VXD errors

Fatal OE exception errors and VXD errors are often caused by video card problems.

These can often be resolved easily by reducing the resolution of the video display. Go to

* Start-Settings-Control Panel-Display-Settings

Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.

If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to

* Start-Settings-Control Panel-System-Device Manager

Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.

If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.

The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.

Another useful way to resolve video problems is to go to

* Start-Settings-Control Panel-System-Performance-Graphics

Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).

Look up your video card's manufacturer on the internet and search for the most recent drivers for it.

6 Viruses

Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to

* Start-Settings-Control Panel-Add/Remove Programs

Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.

A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.

An excellent antivirus programme is McAfee VirusScan by Network Associates . Another is Norton AntiVirus 2000, made by Symantec ( www.symantec.com).

7 Printers

The action of sending a document to print creates a bigger file, often called a postscript file.

Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.

If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.

8 Software

A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.

The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. You can use Reg Cleaner to clean up the System Registry and remove obsolete entries.Some Registry cleaners are available for free.Search on google for them.
Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system.
Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.

Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.

Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.

Remember to restore all the BIOS settings back to their former settings following installation.

9 Overheating

Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.

One remedy is to get a bigger better fan and install it on top of the CPU.
CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.

10 Power supply problems

With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.

---

Read More ->>

Program in Java to print the bull's eye

Program in java to print the bull's eye

---

// Programmed by : Rajeev Mishra
// email          : rajeevmshr661@gmail.com

---

import java.awt.Graphics;
import javax.swing.JFrame;
import java.awt.Color;
import java.util.Random;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
class drawBulleye extends JPanel
{
    public void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        Random r=new Random();
        for(int i=0;i<20;i++)
        {
            Color clr=new Color(r.nextInt(255),r.nextInt(255),r.nextInt(255));
            g.setColor(clr);
            g.fillOval(10+5*i,10+5*i,200-10*i,200-10*i);
        }
    }
}
class Bulleye
{
    public static void main(String args[])
    {
        drawBulleye panel=new drawBulleye();
        JFrame app=new JFrame();
        app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        app.add(panel);
        app.setSize(230,250);
        app.setVisible(true);
    }
}

---

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A Simple Encryption-decryption program in JAVA

Replace each digit with the result of multiplying 7 with the digit and getting remainder after dividing the new value by 10.
Swap the first digit with third,and second with fourth and so on......
Then print the encrypted integer.Also write a separate method to decrypt the encrypted no.

---

// Programmed by : Rajeev Mishra
// Edited on     :Notepad++
// Tested on     :JDK 1.6
import java.util.Scanner;
import java.util.*;
class encrypt2
{
    private int num;
    public double[] encrypted()
    {  
        int ctr=0,x=0;
        double k,temp=0;
        Scanner in=new Scanner(System.in);
        System.out.println("Enter a number (>=4) to encrypt:");
        num=in.nextInt();
        ArrayList a =new ArrayList();
        while(num>0)
        {
            x=num%10;
            k=(x*7)/10.0;
            a.add(new Double(k));
            num/=10;
            ctr++;
        }
        if(!(ctr>=4))
            System.exit(0);
        Object ai[]=a.toArray();
        double arr[]=new double[ai.length];
        for(int s=0,f=ai.length-1;s
        {
            arr[f]=((Double)ai[s]).doubleValue();
        }
        System.out.println("Initial modification:");
        show(arr);
        System.out.println("Exchange at even places");
        if(!(arr.length%2==0))
        {
            for(int i=0;i
            {
                if(i%2==0)
                {    temp=arr[i];
                    arr[i]=arr[i+2];
                    arr[i+2]=temp;
                }
            }
        }
        else
            {
                for(int i=0;i
                {
                    if(i%2==0)
                    {    temp=arr[i];
                        arr[i]=arr[i+2];
                        arr[i+2]=temp;
                    }
                }
            }
        show(arr);
        System.out.println("Exchange at odd places");
        if(!(arr.length%2==0))
        {
            for(int j=1;j
            {  
                if(!(j%2==0))
                {
                    temp=arr[j];
                    arr[j]=arr[j+2];
                    arr[j+2]=temp;
                }
            }
        }
        else
        {
            for(int j=1;j
            {  
                if(!(j%2==0))
                {
                    temp=arr[j];
                    arr[j]=arr[j+2];
                    arr[j+2]=temp;
                }
            }
        }
        show(arr);
        System.out.println("***Encrypted no. is:");
        show(arr);
        return arr;
    }
    public void decrypt(double arr[])
    {
      
        double temp=0;int z=0;
        System.out.println();
        System.out.println("Decryption starts now....");
        System.out.println("Exchange at odd places");
    if(!(arr.length%2==0))
        {
            for(int j=arr.length-2;j>=3;j--)
            {  
                if(!(j%2==0))
                {
                    temp=arr[j];
                    arr[j]=arr[j-2];
                    arr[j-2]=temp;
                }
            }
        }
        else
        {
            for(int j=arr.length-1;j>=3;j--)
            {  
                if(!(j%2==0))
                {
                    temp=arr[j];
                    arr[j]=arr[j-2];
                    arr[j-2]=temp;
                }
            }
        }
        show(arr);
        System.out.println("Exchange at even places");
        if(!(arr.length%2==0))
        {
            for(int i=arr.length-1;i>=2;i--)
            {
                if(i%2==0)
                {    temp=arr[i];
                    arr[i]=arr[i-2];
                    arr[i-2]=temp;
                }
            }
        }
        else
            {
                for(int i=arr.length-2;i>=2;i--)
                {
                    if(i%2==0)
                    {    temp=arr[i];
                        arr[i]=arr[i-2];
                        arr[i-2]=temp;
                    }
                }
            }
        show(arr);
        System.out.println("***Decrypted no. is:");
        for(int s=0;s
        {  
            arr[s]= arr[s]*10/7;
            System.out.printf("%.0f",arr[s]);
        }
    }
    public void show(double arr[])
    {  
        System.out.print(":");
        for(int s=0;s
        {
            System.out.printf("%.0f",arr[s]);
        }
        System.out.println();
    }
    public static void main(String args[])
    {  
        encrypt2 e =new encrypt2();
        double []arr=e.encrypted();
        System.out.println();
        e.decrypt(arr);
    }
}

---

Read More ->>

Nokia All Secret Codes

 WARNING: Using secret codes may be harmful to your phone and result in disabling or worse. Use these codes at your own risk!!!

• IMEI Number :
  *#06# Cells Identity Code (IMEI = International Mobile Equipment Identity)
• Software Version
  *#0000# shows the software version

• Signal Processing
  *3370# - Enchanced full Rate Codec (EFR) activation. It will automatically restart.  
  #3370# - Enchanced full Rate Codec (EFR) deactivation
  *4720# - Half Rate Codec activation. It will automatically restart.  
  #4720# - Half Rate Codec deactivation 
  Sim Clock Stopping
• *#746025625#
  [*#sim0clock#]
  Checks if the sim clock can be stopped. Sim clock stop is a kind of stand-by
  mode which will save battery time. This code doesn't work with software
  version 4.59.
  It will tell you if it can be stopped or not.
• Warrenty Menu
  *#92702689# takes you to a secret menu with 6 choices:
  [*#war0anty#]
  1. Displays Serial Number.
  2. Displays the Month and Year of Manufacture (0997).
  3. Displays (if there) the date where the phone was purchased (MMYY).
  4. Displays the date of the last repairment - if found (0000).
  5. Makes you capable of transferring user data if you have the gear for it.
  6. Shows how long the phone has been used to talk. This counter is not
  reset by when you "clear timers" like the counters in the call register.  
• Bypass the SP lock With a Nokia 16xx/21xx/31xx/51xx/81xx
  1. Insert SIM card of different provider.
  2. Turn on the phone and press the UP VOLUME key for 3 sec.
  Then release it and the phone says PIN CODE?
  3. Press the "C" key.
  4. Then Press * and wait until it disappears and appears again, then press
  * one more time and 04*PIN*PIN*PIN# 

NJoy:

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Installing linux distros from USB drive

To test different flavors of Linux we can use pen drive instead of writing ISO image to cd/dvd. For this first of all we have to download a free software called UNETBOOTIN. It can be downloaded form following site:http://unetbootin.sourceforge.net/. By using this utility we can create live USB DRIVE for Ubuntu,fedora,Mint and many other available distributions.

Read More ->>