Thanks for the reply Examples of the ports being scanned : 53501 - 57000 Sample Offender: 204.178.240.151,152,202,205 or 207.25.71.207,227,212 As far as internal websites being published, just OWA John ----- Original Message ----- > You can sometimes see these attacks if your internal users are listening to > streaming media (RealPlayer, Windows Media Player). > > Why your external DNS Servers appear, not sure. Do you have any published > Web sites that your internal users visit? > > Jason