Melihat dan Menambahkan Service di Linux

melihat dan menambahkan sevice di linux fedora :

command yang digunakan adalah : systemctl 

Starting dan stopping services

systemctl start sshd.service

systemctl stop sshd.service

systemctl restart sshd.service

Menjalankan service otomatis

systemctl enable sshd.service 

systemctl disable sshd.service

Mematikan dan Masking services

contoh matikan service dan child proses




  systemctl kill sshd.service

mengirim unix signal ke service berjalan

  systemctl kill -s USR1 daemon.service

membekukan service agar tidak bisa berjalan

  systemctl mask sshd.service

dalam contoh ini, systemctl membuatkan symlink dari /etc/systemd/system/sshd.service ke /dev/null.

/etc/systemd membaca dari /lib/systemd. systemd dan tidak akan menjalankan service.

Perintah systemd yang lain :

sysVinit command	systemd command	Notes
service sshd start	systemctl start sshd.service	Used to start a service (not reboot persistent)
service sshd stop	systemctl stop sshd.service	Used to stop a service. (not reboot persistent)
service sshd restart	systemctl restart sshd.service	Used to start and stop a service.
service sshd reload	systemctl reload sshd.service	When supported, reloads the config file without interrupting pending operations.
service sshd condrestart	systemctl condrestart sshd.service	Restarts if the service is already running.
service sshd status	systemctl status sshd.service	Tells whether a service is currently running.
ls /etc/rc.d/init.d/	systemctl list-unit-files --type=service	Lists all available services.
chkconfig sshd on	systemctl enable sshd.service	Always run the service at this target (runlevel.)
chkconfig sshd off	systemctl disable sshd.service	Do not automatically run the service at this target (runlevel.)
chkconfig --list	systemctl list-units -t service --all	Print a table of available services and their status.
chkconfig sshd --list	ls /etc/systemd/system/*.wants/sshd.service	Lists the targets that will include the service.
chkconfig sshd --add	systemctl daemon-reload	Used when you create a service file or modify any configuration.
telinit 3	systemctl isolate multi-user.target	Move system into another target (change runlevels.)
[no comparable command]	systemctl show -p "Wants" multi-user.target	Lists units pulled in by a given target.
[no comparable command]	systemctl show -p "After" sshd.service	Shows dependent services and other targets.
[no comparable command]	systemd --test --system --unit=multi-user.target	Simulates booting the system to a given target
[no comparable command]	systemd-analyze plot > boot.svg	Generates a diagnostically useful graphical representation of the boot process.
ps xawf -eo pid,user,cgroup,args	systemd-cgls	Display control group process tree.