root@bob:/etc/bind# dig -x @localhost 192.168.1.101 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 39151 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;\@localhost.in-addr.arpa. IN PTR ;; AUTHORITY SECTION: in-addr.arpa. 1333 IN SOA A.ROOT-SERVERS.NET. dns-ops.ARIN.NET. 2007072804 1800 900 691200 10800 ;; Query time: 23 msec ;; SERVER: 212.23.3.100#53(212.23.3.100) ;; WHEN: Sat Jul 28 22:18:55 2007 ;; MSG SIZE rcvd: 108 ; <<>> DiG 9.3.4 <<>> -x @localhost 192.168.1.101 ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9033 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;192.168.1.101. IN A ;; AUTHORITY SECTION: . 1323 IN SOA A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2007072800 1800 900 604800 86400 ;; Query time: 23 msec ;; SERVER: 212.23.3.100#53(212.23.3.100) ;; WHEN: Sat Jul 28 22:18:55 2007 ;; MSG SIZE rcvd: 106