To maintain the system or check an unknown port, it is natural to find out which process is listening to this port.

Windows can use the command netstat -ano to check the pid of the process corresponding to the port.

Aix can't. Aix needs to use the following command procedure:

pekax 2 18:/& gt； Netstat-na | more

Active Internet connection (including server)

Proto Recv-Q Send-Q local address external address (state)

tcp4 0 0 *. 13 *。 * Listen

tcp 0 0 *.2 1 *。 * Listen

tcp4 0 0 *.22 *。 * Listen

tcp 0 0 *.23 *。 * Listen

tcp4 0 0 *.25 *。 * Listen

tcp4 0 0 *.37 *。 * Listen

tcp4 0 0 *. 1 1 1 *。 * Listen

tcp4 0 0 *. 199 *。 * Listen

tcp 0 0 *.5 12 *。 * Listen

tcp 0 0 *.5 13 *。 * Listen

tcp 0 0 *.5 14 *。 * Listen

tcp4 0 0 *.657 *。 * Listen

tcp4 0 0 *. 1334 *。 * Listen

tcp4 0 0 *. 152 1 *。 * Listen

...

For example, find out which process is listening on port 1334.

pekax 2 18:/& gt； netstat -Aan|grep 1334

f 10002000043 c 398 TCP 4 0 0 * . 1334 *。 * Listen

pekax 2 18:/& gt； RM sock f 10002000043 c 398 tcpcb

Socket 0x43c008 is being used by process 2 17248 (writesrv).

pekax 2 18:/& gt； ps -ef|grep 2 17248

Root2 1 7248159882018: 00 /usr/sbin/writesrv.