Şuanda
netstat -anpt | grep :25
çıktısı
ve
netstat -anpt | grep :587
çıktısı nedir
netstat -anpt | grep :25
[root@ns2 ~]# netstat -anpt | grep :25
tcp 0 55 ipadresim:41742 74.125.136.27:25 ESTABLISHED 14834/qmail-remote.
netstat -anpt | grep :587
[root@ns2 ~]# netstat -anpt | grep :587
tcp 0 0 0.0.0.0:587 0.0.0.0
LISTEN 17899/xinetd