Hi all! I have trouble with reverse lookup of IP addresses. Reverse lookups work when I directly request my Bind9, but not pdns-recursor forwarding the request to the same Bind9. I do this because I want to use the lua-script facility to filter incoming requests, allowing only the lookup of named zones and domains.
I run pdns-recursor (4.0.4, Debian) on the same machine as my Bind9. Bind9 listens to port 53, pdns-recurser to 5300 (should be interchanged in the future). The Bind is able to resolve either local zones or looks up any IP-address on the web. Here is my config file for pdns-recursor: root@host:/etc/powerdns# grep -v '#' recursor.conf |grep -v '^$' config-dir=/etc/powerdns forward-zones-recurse=.=127.0.0.1:53 hint-file=/usr/share/dns/root.hints local-address=0.0.0.0 local-port=5300 quiet=yes security-poll-suffix= setgid=pdns setuid=pdns With this setup, I can forward lookup all IP addresses - my local zones as well as Internet addresses, both by directly asking Bind9 as well as pdns-recursor. However, the reverse lookup does only work when I directly talk to Bind, but not when asking pdns-recursor. This is the answer from Bind (port 53) (192.168.94.66 is the Bind/pdns-recursor test server) [root@hallo ~]# nslookup - 192.168.94.66 > set port=53 > 192.168.94.66 Server: 192.168.94.66 Address: 192.168.94.66#53 66.94.168.192.in-addr.arpa name = sixtysix.corp.mydomain.de. And this from pdns-recursor (port 5300) [root@hallo ~]# nslookup - 192.168.94.66 > set port=5300 > 192.168.94.66 Server: 192.168.94.66 Address: 192.168.94.66#5300 ** server can't find 66.94.168.192.in-addr.arpa.: NXDOMAIN I don’t understand what might be wrong with the lookup of IP addresses through pdns-recursor, as I (think I) forward all requests to my Bind with the forward-zones-recurse=. Can somebody please help me and tell me what’s wrong? Thank you very much! Sig
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