示例一:
ss:查看80端口是否处于监听状态
[root@gw oldboy]
# ss -an|grep 80
LISTEN 0 511 :::80 :::*
示例二:
netstat
:查看80端口
/httpd
服务是否开启
[root@gw oldboy]
# netstat -lntup|grep 80
tcp 0 0 :::80 :::* LISTEN 2317
/httpd
[root@gw oldboy]
# netstat -lntup|grep httpd
tcp 0 0 :::80 :::* LISTEN 2317
/httpd
示例三:
lsof
:查看80端口是否处于
[root@gw oldboy]
# lsof -i :80
COMMAND PID USER FD TYPE DEVICE SIZE
/OFF
NODE NAME
httpd 2317 root 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2320 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2321 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2322 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2323 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2324 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2325 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2326 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)
httpd 2327 apache 4u IPv6 13199 0t0 TCP *:http (LISTEN)