Category: SECURITY
How To Encrypted Root Partition / Filesystem
An understanding of how your computer boots is required, because unlocking an encrypted root filesystem is integral to the bootstrap process. The current, stable kernel series, 2.6, optionally uses initramfs to help boot, Initramfs is a cpio archive that the kernel now knows how to unpack into a RAM-based disk. This unpacked filesystem contains a [...]
Learn How Linux Login Logout Virus Affect The System
Linux virus, oops, well we have heard long enough about it and I am also is not going to throw any more information security jargons like ASLR attacks (address space layout randomization) or buffer overflow payloads designed from well known applications like backtrack kits (security related), i will explain here small script kiddies that you [...]
How To Manage Sudo Access For Linux Users
Sudo access allows a user to execute all permitted commands as root or as any other user. This is facilitated with the help of the file ‘/etc/sudoers’. Once the sudo access is given to a specific user in sudoers file, that user can execute the commands as root by executing it using the prefix ‘sudo’. [...]
Example : Linux File Encrypt / Decrypt Using Mcrypt Command
Mcrypt is a replacement command of one of the popular Unix Crypt command. Crypt in UNIX was one of the file encryption tools which were using one of the popular algorithms similar to World War II enigma cipher. Mcrypt is also the similar command and it provides same functionality. So, we can say Mcrypt is [...]
Install / Configure CHKROOTKIT On Linux : Security Scanner
What is chkrootkit? The chkrootkit is a common security scanner which helps the administrators to search the local system for signs that it is infected with a ‘rootkit’. A rootkit can be considered as a malicious program which can take control over a computer system, without the computer system user knowing about it. This means [...]
