Public bug reported: Binary package hint: nmap
I recently configured our 10.04 LTS systems to use only IPv6 resolvers: root@cajones:~# cat /etc/resolv.conf nameserver 2001:610:148:dead::4 nameserver 2001:610:158:98d::42 domain terena.org nmap complains since: root@cajones:~# nmap -sP putin.terena.org Starting Nmap 5.00 ( http://nmap.org ) at 2011-03-01 12:43 CET mass_dns: warning: Unable to determine any DNS servers. Reverse DNS is disabled. Try using --system-dns or specify valid servers with --dns-servers Host 192.87.38.10 is up (0.00032s latency). Nmap done: 1 IP address (1 host up) scanned in 0.32 seconds If I use --system-dns no complaints: root@cajones:~# nmap --system-dns -sP putin.terena.org Starting Nmap 5.00 ( http://nmap.org ) at 2011-03-01 12:43 CET Host putin.terena.org (192.87.38.10) is up (0.00025s latency). Nmap done: 1 IP address (1 host up) scanned in 0.37 seconds Manually specifying the resolvers however does not seem to work either: root@cajones:~# nmap --dns-servers 2001:610:148:dead::4,2001:610:158:98d::42 -sP putin.terena.org Starting Nmap 5.00 ( http://nmap.org ) at 2011-03-01 12:46 CET mass_dns: warning: Unable to determine any DNS servers. Reverse DNS is disabled. Try using --system-dns or specify valid servers with --dns-servers Host 192.87.38.10 is up (0.00028s latency). Nmap done: 1 IP address (1 host up) scanned in 0.36 seconds ** Affects: nmap (Ubuntu) Importance: Undecided Status: New ** Tags: ipv4 ipv6 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nmap in ubuntu. https://bugs.launchpad.net/bugs/727114 Title: nmap only recognizes IPv6 resolvers by specifying "--system-dns" -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs