// // named.conf // // Provided by Red Hat bind package to configure the ISC BIND named(8) DNS // server as a caching only nameserver (as a localhost DNS resolver only). // // See /usr/share/doc/bind*/sample/ for example named configuration files. // // See the BIND Administrator's Reference Manual (ARM) for details about the // configuration located in /usr/share/doc/bind-{version}/Bv9ARM.html options { listen-on port 53 { 127.0.0.1; 192.168.1.11; }; # listen-on-v6 port 53 { ::1; }; directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; memstatistics-file "/var/named/data/named_mem_stats.txt"; recursing-file "/var/named/data/named.recursing"; secroots-file "/var/named/data/named.secroots"; allow-query { localhost; 192.168.1.0/24; 172.16.0.0/24; }; forward first; forwarders {192.168.1.1;}; /* - If you are building an AUTHORITATIVE DNS server, do NOT enable recursion. - If you are building a RECURSIVE (caching) DNS server, you need to enable recursion. - If your recursive DNS server has a public IP address, you MUST enable access control to limit queries to your legitimate users. Failing to do so will cause your server to become part of large scale DNS amplification attacks. Implementing BCP38 within your network would greatly reduce such attack surface */ recursion yes; dnssec-enable no; dnssec-validation no; /* Path to ISC DLV key */ bindkeys-file "/etc/named.root.key"; managed-keys-directory "/var/named/dynamic"; pid-file "/run/named/named.pid"; session-keyfile "/run/named/session.key"; }; logging { channel default_debug { file "data/named.run"; severity dynamic; }; }; zone "." IN { type hint; file "named.ca"; }; zone "vnlab.com.vn" IN { type master; file "forward.vnlab.com.vn"; allow-update { none; }; }; zone "1.168.192.in-addr.arpa" IN { type master; file "reverse.vnlab.com.vn"; allow-update { none; }; }; zone "sgu.edu.vn" IN { type master; file "forward.sgu.edu.vn"; allow-update { none; }; }; zone "qtm.vn" IN { type master; file "forward.qtm.vn"; allow-update { none; }; }; zone "lab.net" IN { type master; file "forward.lab.net"; allow-update { none; }; }; zone "1.0.16.172.in-addr.arpa" IN { type master; file "reverse.lab.net"; allow-update { none; }; }; include "/etc/named.rfc1912.zones"; include "/etc/named.root.key"; //forward.vnlab.com.vn $TTL 86400 @ IN SOA server1.vnlab.com.vn. root.vnlab.com.vn. ( 2011071001 ;Serial 3600 ;Refresh 1800 ;Retry 604800 ;Expire 86400 ;Minimum TTL ) @ IN NS server1.vnlab.com.vn. @ IN A 192.168.1.11 server1 IN A 192.168.1.11 //reverse.vnlab.com.vn $TTL 86400 @ IN SOA server1.vnlab.com.vn. root.vnlab.com.vn. ( 2011071001 ;Serial 3600 ;Refresh 1800 ;Retry 604800 ;Expire 86400 ;Minimum TTL ) @ IN NS server1.vnlab.com.vn. @ IN PTR vnlab.com.vn. server1 IN A 192.168.1.11 11 IN PTR server1.vnlab.com.vn. 210 IN PTR sgu.edu.vn. 200 IN PTR qtm.vn.