bind的YML文件
---
- name: config bind
hosts: primary_dns,secondary_dns
become: truetasks:
- name: install package
yum:
name: bind
state: present
- name: config for primary
copy:
src: files/primary_dns.confdest: /etc/named.confnotify: restart service
when: inventory_hostname == "serverb.lab.example.com"
- name: config
copy:
src: files/secondary_dns.confdest: /etc/named.confnotify: restart service
when: inventory_hostname == "serverc.lab.example.com"
- name: zone file
copy:
src: files/example.comdest: /var/named/example.comowner: root
group: named
when: inventory_hostname == "serverb.lab.example.com"
- name: zone file re
copy:
src: files/172.25.250.zonedest: /var/named/172.25.250.zoneowner: root
group: named
when: inventory_hostname == "serverb.lab.example.com"
- name: start service
service:
name: named
state: started
enabled: true
- name: firewalld
firewalld:
service: dns
state: enabled
immediate: yes
permanent: yes
handlers:
- name: restart service
service:
name: named
state: restarted
[student@workstation dns-auto]$
主named的配置文件
[student@workstation dns-auto]$ cat files/primary_dns.conf//// 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.//
options {
listen-on port 53 { any; };
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";
secroots-file "/var/named/data/named.secroots";
recursing-file "/var/named/data/named.recursing";
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 no;
dnssec-validation no;
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
/* https://fedoraproject.org/wiki/Changes/CryptoPolicy */
include "/etc/crypto-policies/back-ends/bind.config";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "."IN {
type hint;
file "named.ca";
};
zone "example.com"IN {
type master;
file "example.com";
allow-transfer { 172.25.250.12;};
};
zone "250.25.172.in-addr.arpa" {
type master;
file "172.25.250.zone";
allow-transfer { 172.25.250.12;};
};
从named的配置文件
[student@workstation files]$ cat secondary_dns.conf//// 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.//
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";
secroots-file "/var/named/data/named.secroots";
recursing-file "/var/named/data/named.recursing";
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 no;
dnssec-validation no;
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
/* https://fedoraproject.org/wiki/Changes/CryptoPolicy */
include "/etc/crypto-policies/back-ends/bind.config";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "."IN {
type hint;
file "named.ca";
};
zone "example.com"IN {
type slave;
masters { 172.25.250.11; };
file "slaves/example.com";
};
zone "250.25.172.in-addr.arpa"IN {
type slave;
masters { 172.25.250.11; };
file "slaves/172.25.250.zone";
};
主的区域配置文件（正）
[student@workstation dns-auto]$ cat files/example.com
$TTL 3H
@ INSOA serverb.example.com. root.serverb.example.com. (
1 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
@ INNS serverb.example.com.
@ INNS serverc.example.com.
servera IN A 172.25.250.10
serverb IN A 172.25.250.11
serverc IN A 172.25.250.12
serverd IN A 172.25.250.13
主的区域配置文件（反）
[student@workstation dns-auto]$ cat files/172.25.250.zone
$TTL 3H
@ INSOA serverb.example.com. root.serverb.example.com. (
1 ; serial
1D ; refresh
1H ; retry
1W ; expire
3H ) ; minimum
@ INNS serverb.example.com.
@ INNS serverc.example.com.
10INPTR servera.example.com.
11INPTR servera.example.com.
12INPTR servera.example.com.
13INPTR servera.example.com.
[student@workstation dns-auto]$ cat inventory
[control_node]
workstation.lab.example.com
[caching_dns]
servera.lab.example.com
[primary_dns]
serverb.lab.example.com
[secondary_dns]
serverc.lab.example.com
任何一种服务的自动化配置：
一： 安装包
二： 配置文件 1： jiaj2模板的形式配置：unbound，2： file: bind, 3: notify restart service
三： 要读取数据文件路径： 基本都有
四： 服务
五： 防火墙
六： Handlers : 接收配置的文件改变从而去重新启动服务