网络命令

查看本机监听的端口：netstat -tlun
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp6 0 0 :::3306 :::* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 ::1:25 :::* LISTEN
udp 0 0 127.0.0.1:323 0.0.0.0:*
udp6 0 0 ::1:323 :::*

查看本机所有的网络连接：netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 36 192.168.31.170:22 192.168.31.144:54036 ESTABLISHED(正在访问的)
tcp 0 0 192.168.31.170:22 192.168.31.144:53561 ESTABLISHED(正在访问的)
tcp6 0 0 :::3306 :::* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 ::1:25 :::* LISTEN
udp 0 0 127.0.0.1:323 0.0.0.0:*
udp6 0 0 ::1:323 :::*
raw6 0 0 :::58 :::* 7
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 32270 /run/dbus/system_bus_socket
unix 2 [ ACC ] STREAM LISTENING 37254 private/tlsmgr
unix 2 [ ACC ] STREAM LISTENING 37257 private/rewrite
unix 2 [ ACC ] STREAM LISTENING 37409 /var/lib/mysql/mysql.sock
unix 2 [ ACC ] STREAM LISTENING 21887 /run/systemd/private
unix 2 [ ACC ] STREAM LISTENING 37243 public/pickup

查看本机路由表：netstat -rn
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.31.1 0.0.0.0 UG 0 0 0 ens33
192.168.31.0 0.0.0.0 255.255.255.0 U 0 0 0 ens33

讲了mount unmount 命令