Linux and Unix, Open Source, Linux Howtos
ss (socket statistics) is a command line tool that monitors socket connections and displays the socket statistics of the Linux system. It can display stats for PACKET sockets, TCP sockets, …
How to monitor Socket connections using ss command Read More
By default, the Linux system cannot play most video files that are in encrypted formats (proprietary media formats) if you do not have the required Media Codecs installed on your …
How to install Multimedia Codecs in Linux Read More
The firewall is essential for controlling the flow of network traffic in and out of the Linux server. It enables users to control incoming network traffic on host machines by …
How to configure firewalld rules in Linux Read More
systemd is the default system manager in most of the major Linux distributions, which comes with a new logging daemon called ‘journald’. For many years, system and kernel logs in …
How to use journalctl to analyze logs in Linux Read More
Disk IO issues (input/output) are one of the most common causes of poor performance on Linux system. This occurs when applications try to quickly read or write too much data …
6 best tools to monitor disk IO performance in Linux Read More
‘usermod’ & ‘passwd’ commands are used to lock or unlock one user account at a time, but you may need to write some small shell scripts to perform this action …
How to lock & unlock multiple users in Linux Read More
Sometimes we might need to kill a user session in Linux based on requests, which can be done by sending SIGNALS with kill command. We need to send one of …
How to Kill user sessions in Linux Read More
root user is a privileged user in Linux, which is similar to an administrator in Windows. All kind of administrative operations can be performed using root user privilege hence it …
How to become a ‘root user’ in Linux? Read More
You may have missed to delete some files that are no longer needed on your computer in some directory. It could be either in “Download” or any other directory that …
How to Remove files older than ‘N’ days using Tmpwatch/Tmpreaper on Linux Read More
Well-known services in Linux can be added on boot time without any problems, because most of them come with their own script, which is done using ‘chkconfig’ and ‘systemctl’ commands. …
How to execute a command or script at reboot or startup Read More