Am 07.04.2014 15:42, schrieb Richard Laysell: > Apr 7 12:52:40 polyphemus postfix/smtpd[24765]: lost connection after > AUTH from unknown[78.188.45.153] > Apr 7 12:52:41 polyphemus postfix/smtpd[9398]: lost connection after > AUTH from unknown[78.188.45.153] > Apr 7 12:52:42 polyphemus postfix/smtpd[11788]: lost connection after > AUTH from unknown[78.188.45.153] > Apr 7 12:52:42 polyphemus postfix/smtpd[1519]: lost connection after > AUTH from unknown[78.188.45.153] > Apr 7 12:52:42 polyphemus postfix/smtpd[25494]: lost connection after > AUTH from unknown[78.188.45.153] > Apr 7 12:52:42 polyphemus postfix/smtpd[8085]: lost connection after > > Should I just ignore this, or is there a way of preventing/ameliorating > this abuse in Postfix? My system seems to cope with it OK, but it > does rather annoy me
you can't prevent that somebody connects to your server and the closes the connection - since the other side can't achieve anything there is no abuse and whatever you do it will result in a logline only 1 exception: block the IP on the network layer
