1、控制服务(services and daemons)
RHEL7以前的版本控制服务使用service XX start|stop|status：
[[email protected] ~]# service sshd status
RHEL7控制服务使用systemctl start|stop|status|restart XX服务，查看服务的当前运行状态使用is-active：
[[email protected] ~]# systemctl status sshd
[[email protected] ~]# systemctl is-active sshd active
[[email protected] ~]# systemctl sart|stop|restart sshd
查看某项服务是否会开机自动启动使用is-enable，相对应的是disable：
[[email protected] ~]# systemctl is-enabled sshd enabled
禁用某项服务使用mask，相对应的是unmask：
下面总结一下systemctl命令常用控制服务的选项：
start [NAME...] Start (activate) one or more units 启动服务 stop [NAME...] Stop (deactivate) one or more units 停止服务 reload [NAME...] Reload one or more units 重新加载 restart [NAME...] Start or restart one or more units 重新启动 kill [NAME...] Send signal to processes of a unit 杀死进程 is-active [NAME...] Check whether units are active 是否启动 is-failed [NAME...] Check whether units are failed 是否失败 status [NAME...|PID...] Show runtime status of one or more units 状态
enable [NAME...] Enable one or more unit files 开机启动 disable [NAME...] Disable one or more unit files 开机不启动 reenable [NAME...] Reenable one or more unit files 重新设置开机启动
is-enabled [NAME...] Check whether unit files are enabled 是否开机启动 mask [NAME...] Mask one or more units 禁用服务 unmask [NAME...] Unmask one or more units 不禁用服务
查看系统所有服务:systemctl list-units-all或system ctl list-units-files：
[[email protected] ~]# systemctl list-units
[[email protected] ~]# systemctl list-unit-files
加上type选项可以查看所有服务：
[[email protected] ~]# systemctl list-unit-files --type service UNIT FILE STATE abrt-ccpp.service enabled abrt-oops.service enabled abrt-pstoreoops.service disabled
时间： 2024-10-02 04:56:31