Linux for sysadmins -- checking user groups

Linux for sysadmins -- checking user groups

The Linux user and group systems allow powerful, fine-grained access control to system applications, files, and resources. It's important to know how to list and manage user and group membership.

As an example, to use VirtualBox on Linux, users must be a member of the vboxusers group.
Other applications require a user to be a member of the group dialout.
https://www.2daygeek.com/how-to-check-which-groups-a-user-belongs-to-on-linux/#

Linux from the command line -- manipulating text file formatting with expand and unexpand

Linux from the command line -- manipulating text file formatting with expand and unexpand


The link is for the expand command. Find info on it's counterpart, unexpand, at this link: https://www.howtoforge.com/linux-unexpand-command/
https://www.howtoforge.com/linux-expand-command/

Linux for sysadmins -- Processes and process management for Linux

Linux for sysadmins -- Processes and process management for Linux
https://www.tecmint.com/linux-process-management/

Linux tips & tricks -- Managing multiple monitors with umonitor

Linux tips & tricks -- Managing multiple monitors with umonitor

The umonitor app basically lets you backup and restore multiple display configurations. An ability which you can use to switch between multiple monitors easily.
https://linoxide.com/linux-how-to/umonitor-update-positions-resolutions-monitors/

Linux for sysadmins -- Backing up and restoring MySQL databases with Mysqldump

Linux for sysadmins -- Backing up and restoring MySQL databases with Mysqldump

Backups are for more than just file systems, your databases need to be backed up too..

Linux from the command line -- Setting up Passwordless SSH Logins

Linux from the command line -- Setting up Passwordless SSH Logins

This is an important thing to know how to do and it makes your life much easier too. Once you learn this, you can expand this technique to use with less PC like devices. For example the ConnectBot app for your phone.

Learning Linux | Linux from the command line -- Useful Linux shortcuts

Learning Linux | Linux from the command line -- Useful Linux shortcuts

Here is a collection of everyday shortcuts that usually take a new user a long time to pick up the hard way.
https://linuxtechlab.com/informative-guide-to-useful-linux-shortcuts/