How to extend the root partition with LVM and extend EXT4 file system.
admin
In Linux, Logical Volume Manager (LVM) is a useful tool that allows you to manage your disk partitions in a more flexible way. With LVM, you can create logical volumes…
Linux
How to extend the root partition with LVM and extend XFS file system.
If you need to increase the storage capacity of your root partition, you can do so by extending the Logical Volume Manager (LVM) and the XFS file system. Here’s a…
TCPdump – completely guide. How to use tcpdump.
Listing network interfaces in tcpdump: In order to show a list of network interfaces used in the system, you must specify the -D parameter Capturing packets from a specific network…
How to set up automatic disk mounting in Linux
All settings are shown on the example of a CentOS system and are applicable to any Linux distribution. Mount by drive name Open the following file for editing: and add…
How to create, edit and delete users in Linux
This manual describes how to work with Linux users through the terminal (using the command line). Creating users in linux Syntax: Example: In this example, the developer account is created.…
How to set up your CentOS repository
Creating a local yum repository on CentOS 7 from an ISO image is a convenient way to provide your local network with a comprehensive set of software packages. By creating…
What is firewalld? How to configure firewalld in Centos
Firewalld is utility that allow us to manage firewall rules. It is is the default firewall on Centos. Install and starting firewalld. Some CentOS systems may not have firewalld. To…
Reset Root Superuser Password in Centos 7 or 8
Sometimes it happens that system administrators forget the superuser password or, for example, a server which there is no information. In these cases, we need to figure out what kind…
How to use systemctl and systemd in linux
With the systemd subsystem came the systemctl command. It allows you to manage the main Linux processes. It is cheat sheet of the most used commands. General Syntax Without options,…