systemd is a software suite for Linux operating systems. It provides a system and service manager that runs as PID 1 and starts the rest of the system. It replaces older init on most moder Linux distros:
Whenever we update a critical library such as OpenSSL, we need to restart any daemons that use the library. Systemd with PID 1 itself also uses OpenSSL. How do you restart the systemd daemon without rebooting Linux and other services such as Nginx, SSHD, Firewalld? Here are some tips. [continue reading…]
We can easily enable rc.local shell script support on systemd while booting the Linux system. Traditionally, the shell script /etc/rc.local used by developers and Linux sysadmin to call other scripts or commands after all services are loaded. Typically /etc/rc.local get called at the end when Linux init switched to a multiuser runlevel. However, by default. /etc/rc.local support is disabled under systemd. This page shows how to enable and execute rc.local shell script during boot using systemd on Linux. [continue reading…]
Is there is a command to print list all failed units or services when using systemd on Linux? Can you tell me the systemctl command to list all failed services on Linux? [continue reading…]
