yum install bind
-------------------------------------------------------------------------------------------------
//
// /etc/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 { any; };
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";
allow-query { any; };
/*
- 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 yes;
dnssec-validation yes;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.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 "demo.com" {
type master;
file "/var/named/demo.com";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
------------------------------------------------------------------------
/var/named/demo.com (此文件对named用户要有read权限)
----
$TTL 3H
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
a IN A 109.105.4.65
--------------------------------------------------------------------
system start named
system status named
------------------------------------------------
测试：
yum install bind-utils
修改 vi /etc/resolv.conf
nameserver 109.105.30.40
# nslookup a.demo.com
Server: 109.105.30.40
Address: 109.105.30.40#53
Name: a.demo.com
Address: 109.105.4.65
---------------------------------------------------------
设置轮询
//
// 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 { any; };
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";
allow-query { any; };
/*
- 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 no;
dnssec-enable yes;
dnssec-validation yes;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
rrset-order {
class IN type A name "demo.com" order cyclic;
order cyclic;
};
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
zone "demo.com" {
type master;
file "/var/named/demo.com";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
-------------------
order_spec定义：
[ class class_name ][ type type_name ][ name "domain_name"] order ordering
如果没有设定类，默认值为ANY。如果没有设定类型，默认值为ANY。如果没有设定
名称，默认值为"*"。
合法的排序值是：
fixed:记录以它们在域文件中的顺序
random:记录以随机顺序被返回
cyclic:记录以环顺序被返回
---------------------------
$TTL 3H
@ IN SOA @ rname.invalid. (
0 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
NS @
A 127.0.0.1
AAAA ::1
a IN A 109.105.30.133
IN A 109.105.30.132
--------------------
rndc reload
https://github.com/kennethkalmer/bind-dlz-on-rails
