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Linux Resources


Different Methods to Mount a Drive in Linux ?

This article will guide you on how to use the #mount and #umount command to attach and detach various file systems. You can perform this task on several media options like ISO file, NFS share and USB flash drive. Mounting will not erase everything. The #disk does get modified slightly each time you mount it, though. However, since you have serious directory corruption which cannot be repaired by Disk Utility you need to repair and replace the directory before it can be mounted.


How to use Linux command to delete the PREROUTING rule in iptables ?

This article will guide you on how to list and remove/delete iptables pretrouting chain nat rules on your #Linux based system. The -D or --delete option delete one or more rules from the selected chain. There are two versions of this #command, the rule can be specified as a number in the chain or a rule to match. One of the ways to delete #iptables #rules is by rule specification. To do so, you can run the iptables command with the -D option followed by the rule specification.


Easy way to Disable SELinux on CentOS 7 / RHEL 7 / Fedora Linux ?

This article will guide you on the steps to disable SELinux running on your CentOS 7, RHEL 7 and Fedora Linux. Security-Enhanced #Linux (#SELinux) is a security architecture for Linux #systems that allows administrators to have more control over who can access the system. It was originally developed by the United States National Security Agency (#NSA) as a series of patches to the Linux #kernel using Linux #Security Modules (LSM).


How To Exit Vim Text Editor Command ?

This article will guide you on how to exit #vim text editor using various options. 1. Open a new or existing file with vim filename . 2. Type i to switch into insert mode so that you can start editing the file. 3. Enter or modify the text with your file. 4. Once you're done, press the escape key Esc to get out of insert mode and back to #command mode. 5. Type :wq to save and exit your file.


How to know Ubuntu version via command line ?

This article will guide you on how to check your Ubuntu version so that you can apply patches and update versions for security and performance reasons. The Process of Checking the #Ubuntu version in the #terminal ? i. Open the terminal using "Show Applications" or use the keyboard shortcut [Ctrl] + [Alt] + [T]. ii. Type the #command "lsb_release -a" into the command line and press enter. iii. The terminal shows the Ubuntu version you're running under "Description" and "Release".


Perform SSH Installation And Configuration in CentOS

This article will guide you on the steps to install openssh server (sshd) and clients on CentOS Linux using the yum command. The #ssh #command provides a secure encrypted connection between two hosts over an insecure #network. This connection can also be used for #terminal access, file transfers, and for tunneling other applications. Graphical X11 applications can also be run securely over SSH from a remote location.

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