查找任何单个服务的状态

# service vsftpd status
vsftpd (pid 5909) is running...

获取所有正在运行的服务的状态

# service --status-all | grep running
acpid (pid 5310) is running...
atd (pid  6528) is running...
auditd (pid  5012) is running...
Avahi daemon is not running
Avahi DNS daemon is not running
The Pegasus CIM Listener is running.
The Pegasus CIM Object Manager is running.
crond (pid  6242) is running...
dcerpcd (pid  5177) is running...
eventlogd (pid  5223) is running...

如果我们不使用 grep，我们将能够看到我们机器上的所有服务

# service --status-all
NetworkManager is stopped
acpid (pid 5310) is running...
anacron is stopped
atd (pid  6528) is running...
auditd (pid  5012) is running...
automount is stopped
Avahi daemon is not running
Avahi DNS daemon is not running
hcid is stopped
sdpd is stopped

我们还可以使用以下命令检查活动端口及其服务

# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address         Foreign Address     State       PID/Program name
tcp        0      0 0.0.0.0:52961         0.0.0.0:*           LISTEN      5223/eventlogd
tcp        0      0 0.0.0.0:5988          0.0.0.0:*           LISTEN      6116/cimserver
tcp        0      0 0.0.0.0:5989          0.0.0.0:*           LISTEN      6116/cimserver
tcp        0      0 0.0.0.0:678           0.0.0.0:*           LISTEN      5160/rpc.statd
tcp        0      0 0.0.0.0:14247         0.0.0.0:*           LISTEN      6460/java
tcp        0      0 127.0.0.1:199         0.0.0.0:*           LISTEN      5857/snmpd
tcp        0      0 0.0.0.0:135           0.0.0.0:*           LISTEN      5177/dcerpcd