Greetings, I've noticed a specific client machine doing a crap load of reverse lookups in my named logs. It's just reverse lookups for our internal network, and just from that machine. I can't see that this machine is looking up anything else, actually. Here's an example: 11-Jul-2011 08:11:00.997 client 172.30.116.116#53: view dsdk12.schoollocal: query: 99.115.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.116 client 172.30.116.116#53: view dsdk12.schoollocal: query: 75.241.40.208.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.392 client 172.30.116.116#53: view dsdk12.schoollocal: query: 1.162.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.393 client 172.30.116.116#53: view dsdk12.schoollocal: query: 150.160.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.590 client 172.30.116.116#53: view dsdk12.schoollocal: query: 25.96.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.680 client 172.30.116.116#53: view dsdk12.schoollocal: query: 2.130.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.940 client 172.30.116.116#53: view dsdk12.schoollocal: query: 40.207.115.66.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:01.940 client 172.30.116.116#53: view dsdk12.schoollocal: query: 22.114.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:02.588 client 172.30.116.116#53: view dsdk12.schoollocal: query: 55.98.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:02.785 client 172.30.116.116#53: view dsdk12.schoollocal: query: 179.112.30.172.in-addr.arpa IN PTR + (172.30.112.121) 11-Jul-2011 08:11:02.786 client 172.30.116.116#53: view dsdk12.schoollocal: query: 105.248.250.17.in-addr.arpa IN PTR + (172.30.112.121)
It appears to be non-stop. Middle of the night and through the day. I don't have physical access to the machine at this time, so I can't investigate too much. Is this abuse? If so, is it likely intentional? Thanks in advance, Josh _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
