Linux查看监听的TCP和UDP端口

# netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN      916/pure-ftpd (SERV
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      937/sshd: /usr/sbin
tcp        0      0 127.0.0.1:6010          0.0.0.0:*               LISTEN      613722/sshd: root@p
tcp        0      0 127.0.0.1:9000          0.0.0.0:*               LISTEN      121520/php
tcp        0      0 127.0.0.1:587           0.0.0.0:*               LISTEN      2396/sendmail: MTA:
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      747/systemd-resolve
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      2396/sendmail: MTA:
tcp        0      0 0.0.0.0:8081            0.0.0.0:*               LISTEN      88788/nginx: master

# netstat -nlup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
udp        0      0 127.0.0.1:323           0.0.0.0:*                           1028/chronyd
udp        0      0 127.0.0.53:53           0.0.0.0:*                           747/systemd-resolve
udp        0      0 172.26.79.92:68         0.0.0.0:*                           745/systemd-network
udp6       0      0 ::1:323                 :::*                                1028/chronyd