128 lines
4.2 KiB
Plaintext
128 lines
4.2 KiB
Plaintext
//
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// Sample named.conf BIND DNS server 'named' configuration file
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// for the Red Hat BIND distribution.
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//
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// See the BIND Administrator's Reference Manual (ARM) for details, in:
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// file:///usr/share/doc/bind-*/arm/Bv9ARM.html
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// Also see the BIND Configuration GUI : /usr/bin/system-config-bind and
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// its manual.
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//
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options
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{
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/* make named use port 53 for the source of all queries, to allow
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* firewalls to block all ports except 53:
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*/
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query-source port 53;
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query-source-v6 port 53;
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// Put files that named is allowed to write in the data/ directory:
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directory "/var/named"; // the default
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dump-file "data/cache_dump.db";
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statistics-file "data/named_stats.txt";
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memstatistics-file "data/named_mem_stats.txt";
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};
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logging
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{
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/* If you want to enable debugging, eg. using the 'rndc trace' command,
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* named will try to write the 'named.run' file in the $directory (/var/named).
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* By default, SELinux policy does not allow named to modify the /var/named directory,
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* so put the default debug log file in data/ :
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*/
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channel default_debug {
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file "data/named.run";
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severity dynamic;
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};
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};
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//
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// All BIND 9 zones are in a "view", which allow different zones to be served
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// to different types of client addresses, and for options to be set for groups
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// of zones.
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//
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// By default, if named.conf contains no "view" clauses, all zones are in the
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// "default" view, which matches all clients.
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//
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// If named.conf contains any "view" clause, then all zones MUST be in a view;
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// so it is recommended to start off using views to avoid having to restructure
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// your configuration files in the future.
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//
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view "localhost_resolver"
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{
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/* This view sets up named to be a localhost resolver ( caching only nameserver ).
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* If all you want is a caching-only nameserver, then you need only define this view:
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*/
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match-clients { localhost; };
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match-destinations { localhost; };
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recursion yes;
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# all views must contain the root hints zone:
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include "/etc/named.root.hints";
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/* these are zones that contain definitions for all the localhost
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* names and addresses, as recommended in RFC1912 - these names should
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* ONLY be served to localhost clients:
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*/
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include "/etc/named.rfc1912.zones";
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};
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view "internal"
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{
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/* This view will contain zones you want to serve only to "internal" clients
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that connect via your directly attached LAN interfaces - "localnets" .
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*/
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match-clients { localnets; };
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match-destinations { localnets; };
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recursion yes;
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// all views must contain the root hints zone:
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include "/etc/named.root.hints";
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// include "named.rfc1912.zones";
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// you should not serve your rfc1912 names to non-localhost clients.
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// These are your "authoritative" internal zones, and would probably
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// also be included in the "localhost_resolver" view above :
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zone "my.internal.zone" {
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type master;
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file "my.internal.zone.db";
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};
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zone "my.slave.internal.zone" {
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type slave;
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file "slaves/my.slave.internal.zone.db";
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masters { /* put master nameserver IPs here */ 127.0.0.1; } ;
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// put slave zones in the slaves/ directory so named can update them
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};
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zone "my.ddns.internal.zone" {
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type master;
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allow-update { key ddns_key; };
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file "slaves/my.ddns.internal.zone.db";
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// put dynamically updateable zones in the slaves/ directory so named can update them
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};
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};
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key ddns_key
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{
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algorithm hmac-md5;
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secret "use /usr/sbin/dns-keygen to generate TSIG keys";
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};
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view "external"
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{
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/* This view will contain zones you want to serve only to "external" clients
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* that have addresses that are not on your directly attached LAN interface subnets:
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*/
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match-clients { !localnets; !localhost; };
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match-destinations { !localnets; !localhost; };
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recursion no;
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// you'd probably want to deny recursion to external clients, so you don't
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// end up providing free DNS service to all takers
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// all views must contain the root hints zone:
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include "/etc/named.root.hints";
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// These are your "authoritative" external zones, and would probably
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// contain entries for just your web and mail servers:
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zone "my.external.zone" {
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type master;
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file "my.external.zone.db";
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};
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};
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