Services

What is a Linux service?

Description
Linux services are applications or processes that run in the background either because they're actively doing something or waiting to do something. 
An example service would be OpenBSD Secure Shell server, a service that allows one to connect to the system via SSH.
Interacting with Services
systemctl is the system manager tool which is responsible for managing services.
systemctl list-unit-files - View all services available.
UNIT FILE                                  STATE           PRESET  
proc-sys-fs-binfmt_misc.automount          static          -       
-.mount                                    generated       -       
dev-hugepages.mount                        static          -       
dev-mqueue.mount                           static          -       
home.mount                                 generated       -       
proc-sys-fs-binfmt_misc.mount              disabled        disabled
run-vmblock\x2dfuse.mount                  enabled         enabled 
[SNIP]
systemctl status ssh - Gets information on the status of ssh
○ ssh.service - OpenBSD Secure Shell server
     Loaded: loaded (/lib/systemd/system/ssh.service; disabled; preset: enabled)
     Active: inactive (dead)
       Docs: man:sshd(8)
             man:sshd_config(5)
sudo systemctl start ssh - Starts the ssh service
sudo systemctl stop ssh - Stops the ssh service
sudo systemctl enable ssh - Enables the ssh service to run on system boot
sudo systemctl disable ssh - Disables the ssh service from running on system boot

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Last modified 1mo ago