Crack Linux root password

Cara simple untuk dapatkan password root kalau terlupa password..? untuk SLES hokkaaayy...

Cara init=/bin/bash recovery:

1. On the boot menu select the first option “SUSE Linux enterprise server” and press‘e’ for edit
   
2. On the second menu select the kernel option and press ‘e’ for edit
   
3. type ‘ init=/bin/bash’ (leave empty space at the begging), and press ‘Enter’ and then ‘b’ to boot with that option
   
4. The system will boot with the root user logged on, type ‘passwd’ to change the password and input your new password, or just press ‘Enter’ for no password (blank password)
   

Reboot the server and log on with your new password.

note: credit to: http://adminramble.com/

Defects in linux operating system (Linux kernel vulnerabilities) -part 1

Is Linux secure enough? Nothing can beat security in Linux? Do you think Linux is free from defects? Well, u'd better think again... may this post will reveal what flaws exist in Linux operating system. Jengg..jeenggg..
(I will try to KISS with u- Keep it short n Simple with u to discover this topic.)


What is kernel? Imagine a nut/seed in a fruit. Well, the nut/seed..? that's what i said, is a kernel! Its a program stands in the central core of a computer operating system.It has complete control over everything in the system. Kernal also is the first part of the OS to load into memory during booting.
VUlnerabilities in kernel happend when there are bugs in the kernal program. Each vulnerabilities can be ofted exploited in many ways!

LIst of bugs in Linux kernel (founded in 2011):
a. Missing pointer check
b. Missing Permission Check
c. Buffer overflow
d. Integer overflow
e. Uninitialized data
f. Memory Mismanagement
g. Miscellaneous



Do you know?

1. Enumeration tools can be use to againts Linux system
2.Nessus can be use to discover weakness exist in Linux system!

credit to:
- http://pdos.csail.mit.edu/papers/chen-kbugs.pdf
- www.wikipedia.org

History of Linux Operating System

What is Linux? It’s an OPERATING SYSTEM of cozzzzz dude!
The History of Linux began in 1991 with the commencement of a personal project by a Finnish student, Linus Torvalds, to create a new free operating system kernel.
Linus Torvalds began a project that later became the Linux kernel. He wrote the program specifically for the hardware he was using and independent of an operating system because he wanted to use the functions of his new PC with an 80386 processor. Development was done on MINIX using the GNU C compiler. This is still the main choice for compiling Linux today. The code however, can be built with other compilers, such as the Intel C Compiler.
As Torvalds wrote in his book Just for Fun, he eventually realized that he had written an operating system kernel. On 25 August 1991, he announced this system in a Usenet posting to the newsgroup "comp.os.minix.” “ Hello everybody out there using minix -
" I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386(486) AT clones. This has been brewing since april, and is starting to get ready. I'd like any feedback on things people like/dislike in minix, as my OS resembles it somewhat (same physical layout of the file-system (due to practical reasons) among other things). I've currently ported bash(1.08) and gcc(1.40), and things seem to work. This implies that I'll get something practical within a few months, and I'd like to know what features most people would want. Any suggestions are welcome, but I won't promise I'll implement them :-) Linus (torvalds@kruuna.helsinki.fi) PS. Yes – it's free of any minix code, and it has a multi-threaded fs. It is NOT portable (uses 386 task switching etc), and it probably never will support anything other than AT-harddisks, as that's all I have :-(. —Linus Torvalds “
In 1998, many major companies such as IBM, Compaq and Oracle announce their support for Linux. In addition a group of programmers begins developing the graphical user interface KDE. A year then, a group of developers begin work on the graphical environment GNOME, destined to become a free replacement for KDE, credit to:wikipedia