Hello, in order to allow the dns server to answer the querys please modify /var/named/chroot/etc/named.conf from page http://www.howtoforge.com/perfect-server-centos-5.6-x86_64-ispconfig-3-p5 from memstatistics-file "/var/named/chroot/var/named/data/named_mem_stats.txt"; allow-query { localhost; }; recursion yes; to memstatistics-file "/var/named/chroot/var/named/data/named_mem_stats.txt"; allow-query { any; }; recursion yes; Thanks