hacking linux password
 

hai friends
i am sakthi from india,i went through a magizine that it's very easy to hack the linux system,even if we forget the password also we can easily get into the o.so pls tell me the method to hack the linux o.s and also give me some tips to protect my system password

I don't see a problem with members explaining to you what you could do if you forget your root password, and what steps can be taken to protect your passwords. But they won't be able to help you with "methods to hack Linux", as it would violate the LQ Rules.

You can always get into any computer to which you have physical access. The only real protection is a locked room (or maybe a big dog..;))

In Linux (with GRUB bootloader):
reboot
when the GRUB menu appears, hit any key to stop the count
<if you have a graphical GRUB screen, hit escape to go to text mode>
select the OS to boot, and hit "e" for edit
select the kernel line, and "e"
add the word "single" (no quotes) at the end of the line
"enter" and then "b" to boot
You will now be in a terminal with no password required.