Hello,
I have problem on my DNS server, i’m using BIND9 under cPanel system.
The OS is CentOS 5.5 64bit, the version of BIND is 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3
In /var/log/messages there are a flood messages like:
Jan 3 14:41:12 ethel named[29879]: client 127.0.0.1#52309: view localhost_resolver: query (cache) ‘29.54.95.212.in-addr.arpa/PTR/IN’ denied
Jan 3 14:41:12 ethel named[29879]: client 127.0.0.1#52462: view localhost_resolver: query (cache) ‘29.54.95.212.in-addr.arpa/PTR/IN’ denied
Jan 3 14:41:12 ethel named[29879]: client 127.0.0.1#48055: view localhost_resolver: query (cache) ‘29.54.95.212.in-addr.arpa/PTR/IN’ denied
Jan 3 14:41:12 ethel named[29879]: client 127.0.0.1#41356: view localhost_resolver: query (cache) ‘29.54.95.212.in-addr.arpa/PTR/IN’ denied
Jan 3 14:41:12 ethel named[29879]: client 127.0.0.1#52473: view localhost_resolver: query (cache) ‘29.54.95.212.in-addr.arpa/PTR/IN’ denied
With much IP and hostname.
When i go to resolve a domain i wait about 10 seconds before process the request http.
The problem can be “DNS Server Recursive Query Cache Poisoning Weakness”.
Please, help me to fix this problem now.
