I was running the netstat -an command and I noticed that I have multiple connections to port 25 on my server. My mail sending has been slow, so I am guessing this is the reason. What I don't understand is why this IP has multiple connections established to my port 25. In total there are 13 connections. Is this a DOS attack or is this normal? I compared this to our company mail server and there is nothing like this on it. tcp 0 0 192.168.0.2:25 63.247.132.19:52355 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:52129 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:49572 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:52410 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:53274 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:52184 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:50527 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:51408 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:53012 ESTABLISHED tcp 0 0 192.168.0.2:25 63.247.132.19:50805 ESTABLISHED Richard Humphrey -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
