Linux-centos7.4-dns II (Build master, slave domain Sync server)

Environment: two Linux servers
Home Server IP Address: 192.168.80.10
From server IP address: 192.168.80.20

First step: master server Configuration
[[email protected] ~]# yum install bind//Installation DNS service
[[email protected] ~]# systemctl stop FIREWALLD//Turn off firewall
[[email protected] ~]# Setenforce 0//Turn off SELinux
--------------1. Edit the master configuration file-------------
[Email protected] ~]# vi/etc/named.conf
The contents of the amendment are as follows:
Options {
Listen-on Port 53 {192.168.80.10;}; Change to the IP of your server
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;}; Anyone can access
Save exit
[[email protected] named]# named-checkconf//Check syntax error
------------2. Edit the Zone profile--------------
[Email protected] ~]# Vi/etc/named.rfc1912.zones
Forward region, add content last:
Zone "Hello.com" in {
Type master;
File "Hello.com.zone";
allow-update {192.168.80.20;}; Allow configuration files to be updated from the server from the primary server
also-notify {192.168.80.20;}; Note that to configure the from server address
};
Save exit
[[email protected] named]# named-checkconf//Check syntax error
--------3. Edit the Forward zone data profile--------
[Email protected] ~]# cd/var/named
[Email protected] named]# cp-p named.localhost hello.com.zone
[Email protected] named]# VI hello.com.zone
The contents of the amendment are as follows:
$TTL 1D
@ in SOA @ rname.invalid. (
0; Serial
1D; Refresh
1H; Retry
1W; Expire
3H); Minimum
NS @
A 192.168.80.10//This server address
www in A 192.168.80.10//www.hello.com corresponding address
FTP in A 192.168.80.10//ftp.hello.com corresponding address
Save exit
[[email protected] named]# named-checkconf//Check syntax error
------------4. Start the service, verify the--------------
[[email protected] named]# systemctl start named//Start DNS Service
[Email protected] named]# Netstat-anpu | grep named//view DNS service status
Successful display,

[[email protected] named]# nslookup www.hello.com//Resolve domain name
[[email protected] named]# nslookup ftp.hello.com//Resolve domain name
Successful display,

Step Two: Configure from server
-------------1. Preparatory work-------------
[[email protected] ~]# Yum install bind
[[email protected] ~]# systemctl stop FIREWALLD//Turn off firewall
[[email protected] ~]# Setenforce 0//Turn off SELinux
--------------2. Build a DNS server-------------
Edit the master configuration file
[Email protected] ~]# vi/etc/named.conf
The contents of the amendment are as follows:
Options {
Listen-on Port 53 {192.168.80.20;}; IP of the server being monitored
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;}; Anyone can access
Save exit
[[email protected] named]# named-checkconf//Check syntax error
Editing a zone configuration file
[Email protected] ~]# Vi/etc/named.rfc1912.zones
Forward zone, and finally add the following
Zone "Hello.com" in {
Type slave;
Masters {192.168.80.10;};
File "Slaves/hello.com.zone";
allow-notify {192.168.80.10;};
};
Save exit
[[email protected] named]# named-checkconf//Check syntax error
No zone data files need to be configured from the server and will be automatically synchronized from the primary server
--------------3. Start the service, verify the-------------
[[email protected] ~]# systemctl start named//Start DNS Service
[Email protected] ~]# Netstat-anpu | grep named//view DNS service status
Successful display,

[[email protected] ~]# cd/var/named/slaves///See if zone files are synchronized
[[email protected] slaves]# ls
Sync successfully,:

[[email protected] ~]# nslookup www.hello.com//Resolve domain name
Successful display,

Step three: Test master, sync from
Modify the configuration-------------the primary server-------------
[Email protected] ~]# Vi/var/named/hello.com.zone
$TTL 1D
@ in SOA @ rname.invalid. (
1; Serial//Modify serial number, must be modified
1D; Refresh
1H; Retry
1W; Expire
3H); Minimum
NS @
A 192.168.80.10
www in A 192.168.80.10
FTP in A 192.168.80.20//Modify FTP address to test
Save exit
[[email protected] named]# named-checkconf//Check syntax error
[[email protected] ~]# systemctl Restart named//Restart DNS service
[[email protected] ~]# nslookup ftp.hello.com//Parse FTP address
Resolved successfully,

---------------authentication from the server----------------
[[email protected] ~]# nslookup ftp.hello.com//Parse FTP address
Synchronized successfully,

Master, from the synchronous construction completed

Linux-centos7.4-dns II (Build master, slave domain Sync server)