通過systemctl命令執(zhí)行對系統(tǒng)服務的操作

systemctl [OPTIONS...] COMMAND [NAME...]
例如啟動網絡服務
systemctl start NetworkManager
CentOS7有兩個網絡服務，其中network是為了兼容之前的版本，可以關掉network，只啟動NetworkManager

systemctl stop network
systemctl restart NetworkManager

設置服務的開機自啟動

設置自啟動

systemctl enable NetworkManager

取消自啟動

systemctl disable NetworkManager

查看服務的自啟動情況,enable/disable/static,static依賴于其他服務的服務,本身不考慮是否自啟動

systemctl list-unit-files

[root@linux ~]# systemctl list-unit-files
UNIT FILE                                     STATE   
proc-sys-fs-binfmt_misc.automount             static  
dev-hugepages.mount                           static  
dev-mqueue.mount                              static  
proc-fs-nfsd.mount                            static  
proc-sys-fs-binfmt_misc.mount                 static  
run-vmblock\x2dfuse.mount                     disabled
sys-fs-fuse-connections.mount                 static  
sys-kernel-config.mount                       static  
sys-kernel-debug.mount                        static  
tmp.mount                                     disabled
var-lib-nfs-rpc_pipefs.mount                  static  
brandbot.path                                 disabled
cups.path                                     enabled 
systemd-ask-password-console.path             static  

防火墻服務是firewalld,可用上面的命令進行停止/啟動/重啟/設置自啟動/取消自啟動

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