失效的服務

1. 查看失效的服務。
   

   [root@kvm4 ~]# systemctl --failed --type service
     UNIT          LOAD   ACTIVE SUB    DESCRIPTION
   ● httpd.service loaded failed failed The Apache HTTP Server
   
   LOAD   = Reflects whether the unit definition was properly loaded.
   ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
   SUB    = The low-level unit activation state, values depend on unit type.
   1 loaded units listed.