Critical Files on Linux

/etc/passwd	This file stores user information.	To see the file contents: Command: cat /etc/passws	X tells the user that the user has a password of 1001 The user's user ID si value may vary. 100 groups ID /home/arifa/bin/bash/ Directory and SHELL path: Example:arifa: x:1001:100:: /home/arifa/bin/bash/
/etc/shadow	This file stores user hashes. (digital fingerprint) string summary The users' password summary is stored in this field.	To see the file contents: Command: cat /etc/shadow If it exceeds the privilege Command 1: su root Command 2: cat /etc/shadow
/etc/sudoers	This file is the configuration file for which we set the sudo authority. I write to remember Sudo decommission Get root authorization Give root authorization to user Root root user	To give the user of Arifa sudo, you need to open the terminal with the sudo authorization for this Command 1 : su root cat command 2: cat /etc/sudoers On the screen that opens, you can add the arifa user under root and give the same privileges as root to get sudo, that is, root authorization. To add you need to use tex editor for this Command 3: leafped /etc/sudoers Arifa add with the same privileges under root Save close, you are now root. You can enter anywhere by typing sudo Command 4:example: sudo cat /etc/sudoers You can now edit it.

Arif Akyüz
Senior Information Technologies System and Network Specialist

Arif Akyüz
Content Producer & Cyber Security Expert
[email protected]