Uninstall Linux From Dual boot System With Windows

This is very obvious question about dual booting computer, means if you have install Windows and Linux both in deferent partitions, and any reason you want to uninstall Linux from your computer, to do this some users delete the Linux partition but groub is still in MBR and after deleting Linux partition they will face new problem when computer will reboot the system load groub from MBR but groub configuration file also deleted with Linux partitions and now groub prompt will appear and your system will not boot Linux as well as Windows also, to solve this problem you have to remove groub from MBR

With the following step by step procedure you can uninstall or delete Linux completely and safely.

Requirements:

You need a windows xp startup disk or windows installation bootable CD.

Step by step procedure:

1. First Reboot your computer with windows 98 start up disc or Windows CD (with Recovery Console option) and type the following command.

“fixmbr”

2. "fixmbr" command will replace grub loader of Linux and repair yours bootloader and rewrite ntldr on MBR of Hard Disk, now you will see only Windows in the boot menu.

3. Now Boot up with your windows operation system

4. And with use of Disk Manager delete the Linux partition

To run Disk Manager

Go to Start > Control Panel > Administrative Tools > Computer Management

5. Go to Disk Management under “Storage”

6. Select your Hard Disk and then select the Linux partition and delete the Linux partition this will delete Linux and grub from boot partition of Linux.

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Ubuntu Static IP

setup static IP address under Ubuntu

Ubuntu Linux stores all network configuration option in /etc/network/interfaces configuration file. You need to open this file using a text editor such as vi or gedit.

Open terminal (command line)

Type the following command:
#sudo vi /etc/network/interfaces
OR
sudo gedit /etc/network/interfaces
Make the changes as follows:

auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
broadcast 192.168.1.255
gateway 192.168.1.254

Save and close the file. Restart networking:
$ sudo /etc/init.d/networking restart

Configure Manual IP Address In BackTrack

BackTrack is the very famous Live CD Linux Distribution, and it is use for Penetration testing and it has wide range of security tools, to connect BackTrack computer with the network you have to configure IP address on the LAN Interface

To configure IP Address on the eth0 interface

#ifconfig eth0 10.0.12.13

If you want to configure IP Address with Subnetmask use following COmmand

#ifconfig eth0 10.0.12.50 netmask 255.255.248.0

To manually configure default gateway:

#route add default gw 10.0.8.1 eth0

To Configure DNS servers IP Address:

#echo nameserver 4.2.2.1 > /etc/resolv.conf

#echo nameserver 4.2.2.2 >> /etc/resolv.conf

Turn on the LAN Card

#ifconfig eth0 up

To see Full Information about LAN Card

#ifconfig -a

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BackTrack 4 R2

BackTrack 4 R2 Released

Welcome to backtrack-linux.org, home of the highest rated and acclaimed Linux security distribution to date. BackTrack is a Linux-based penetration testing arsenal that aids security professionals in the ability to perform assessments in a purely native environment dedicated to hacking. Regardless if you’re making BackTrack your primary operating system, booting from a LiveDVD, or using your favorite thumbdrive, BackTrack has been customized down to every package, kernel configuration, script and patch solely for the purpose of the penetration tester.

BackTrack 4 R2 Released!

BackTrack is intended for all audiences from the most savvy security professionals to early newcomers to the information security field. BackTrack promotes a quick and easy way to find and update the largest database of security tools collection to-date. Our community of users range from skilled penetration testers in the information security field, government entities, information technology, security enthusiasts, and individuals new to the security community.

Feedback from all industries and skill levels allows us to truly develop a solution that is tailored towards everyone and far exceeds anything ever developed both commercially and freely available. The BackTrack Project is funded by Offensive Security.

http://www.backtrack-linux.org

Lindungi Diri Anda Dari Session Hijack

Saya senaraikan beberapa kemudahan yang boleh menggunakan SSL (HTTPS) secara terus, dan akan sentiasa dikemas kini. Hanya sambungan laman dapat saya sediakan.

(1) Anda perlu tahu sama ada anda dalam Secure Site atau SSL (HTTPS) rujuk disini.

http://en.wikipedia.org/wiki/HTTP_Secure

Bahagian Browser integration

Mozilla Firefox

http://www.mozilla.org/security/#Tips_for_secure_browsing

Untuk Internet Explorer rujuk

http://www.cert.org/tech_tips/securing_browser/

(2) Gunakan extension Firefox ini untuk sentiasa menggunakan HTTPS bila melayari Internet (bagi laman web yang menyokongnya). Ini berguna untuk capaian ke laman web Facebook dan Twitter.

Muat turun di sini

https://www.eff.org/https-everywhere

http://www.eff.org/deeplinks/2010/06/encrypt-web-https-everywhere-firefox-extension

https://addons.mozilla.org/en-US/firefox/addon/229918/

Anda perlukan pelayar Internet Mozilla Firefox

http://www.mozilla.com/en-US/firefox/firefox.html

(3) Capaian Selamat Dengan Google Gmail

http://gmailblog.blogspot.com/2010/01/default-https-access-for-gmail.html

Secara umum Gmail menggunakan HTTPS. Anda boleh memastikan ia dengan perkara 1.

(4) Capaian Wikipedia Cara Selamat (Secure Server)

http://en.wikipedia.org/wiki/Wikipedia:Secure_server

Petua paling mudah adalah, apabila keluar notis yang pelik-pelik dari broswer anda, seperti https certificate invalid. Maka hentikan pelayaran anda. Anda mungkin kena Session Hijack.

sumber : http://cikgucyber.blogspot.com