Linux查看sshd服务是否开启

您可以使用以下命令来查看sshd服务是否开启：

systemctl status sshd

如果服务正在运行，则显示类似以下输出：

● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: yes)
   Active: active (running) since Sun 2020-09-27 16:06:08 UTC; 19min ago
     Docs: man:sshd(8)
           man:sshd_config(5)
  Process: 346 ExecStartPre=/usr/sbin/sshd-keygen (code=exited, status=0/SUCCESS)
 Main PID: 365 (sshd)
    Tasks: 1 (limit: 11583)
   Memory: 1.6M
   CGroup: /system.slice/sshd.service
           └─365 /usr/sbin/sshd -D

如果服务没有运行，则显示类似以下输出：

● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: yes)
   Active: inactive (dead) since Sun 2020-09-27 16:00:00 UTC; 26min ago
     Docs: man:sshd(8)
           man:sshd_config(5)
  Process: 275 ExecStart=/usr/sbin/sshd -D $SSHD_OPTS (code=exited, status=255/EXCEPTION)
 Main PID: 275 (code=exited, status=255/EXCEPTION)