systemd管理服务操作
基本上相对较新版本的Linux发行版都支持systemd管理网络服务,ubuntu16.04,rhel7,suse,opensuse,debian
systemd管理的内容不仅仅是service,systemd管理的单位是unit,service只是unit中的一种
[root@localhost ~]# systemctl list-units
[root@localhost ~]# systemctl list-unit-files
此文章只涉及service,target
**systemd管理service**
[root@localhost ~]# systemctl status NetworkManager ##查看服务的状态
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2022-03-17 22:48:45 EDT; 11min ago
Docs: man:NetworkManager(8)
Main PID: 993 (NetworkManager)
Tasks: 3 (limit: 49667)
Memory: 12.7M
CGroup: /system.slice/NetworkManager.service
└─993 /usr/sbin/NetworkManager --no-daemon
[root@localhost ~]# systemctl stop NetworkManager.service ##停止一个服务
[root@localhost ~]# systemctl status NetworkManager
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Thu 2022-03-17 23:38:51 EDT; 3s ago
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