[root@db init.d]# service [service name] (start|stop|restart|status|…)
service name:就是服务名,需与/etc/init.d/目录下面的应用程序对应。
–显示出目前系统上面所有服务的运行状态
- [root@db init.d]# service –status-all
- acpid (pid 1900) is running…
- anacron is stopped
- atd (pid 2205) is running…
- auditd (pid 1617) is running…
- automount (pid 1989) is running…
- Avahi daemon is running
- Avahi DNS daemon is not running
- hcid (pid 1811) is running…
- sdpd (pid 1817) is running…
- capi not installed – No such file or directory (2)
- conmand is stopped
- cpuspeed is stopped
- crond (pid 2138) is running…
- cupsd (pid 2058) is running…
- … …
netstat -[atunlp]
-a 将目前系统上所有的连接、监听、Socket数据都列出来;
-t 列出tcp网络数据包的数据;
-u 列出udp网络数据包的数据;
-n 不列出进程的服务名称,以端口号来显示;
-l 列出目前正在网络坚挺的服务;
-p 列出该网络服务的进程PID。
例如:
- [root@linux ~]# netstat -anp | grep 1521
- tcp 0 0 0.0.0.0:1521 0.0.0.0:* LISTEN 2542/tnslsnr
- tcp 0 0 127.0.0.1:31115 127.0.0.1:1521 ESTABLISHED 2550/ora_pmon_orcl
- tcp 0 0 127.0.0.1:1521 127.0.0.1:31115 ESTABLISHED 2542/tnslsnr
- [root@linux ~]# netstat -an | grep 1521
- tcp 0 0 0.0.0.0:1521 0.0.0.0:* LISTEN
- tcp 0 0 127.0.0.1:31115 127.0.0.1:1521 ESTABLISHED
- tcp 0 0 127.0.0.1:1521 127.0.0.1:31115 ESTABLISHED