Today, I want to install the Bind DNS Slave server on Ubuntu 20.04. In the last post, I wrote about how to install the Bind Master server.

Content:

1. What is Bind and, its requirement for installing??
2. Master Bind Server
   1. Install Bind on the Master Server
   2. Configure Forward and Reverse Zones
   3. Create the Forward zone file
   4. Create the Reverse zone file
   5. Configure Options File
3. Slave Bind Server
   1. Install Bind on the Slave Server
   2. Configure Forward and Reverse Zone

1- What is Bind and, its requirements for installing?

Berkeley Internet Name Domain (BIND) is the most popular Domain Name System (DNS) server in use today. It was developed in the 1980s at the University of Berkley and is currently in version 9. BIND is an open-source system free to download and use, offered under the Mozilla Public License.

1-1-LAB Requirement:

1- 2X Ubuntu Servers version 20.04 from here.

2- update and upgrade your Ubuntu Servers to the latest with this command:

     apt update -y && apt upgrade -y

1-2-LAB Configuration:

• 1- Master Bind Server:
  • FQDN: Bind01.khoshraftar.com
  • IP: 172.17.116.10
• 2-Slave Bind Server:
  • FQDN: Bind02.khoshraftar.com
  • IP: 172.17.116.11

3- Bind Slave Server

3-1-Install Bind on the Slave server

     sudo apt install bind9  bind9-utiles

3-2-Create the Forward zone directory

     mkdir /var/lib/bind/zones

3-3-Create the Reverse zone directory

     mkdir /var/lib/bind/reverse

3-4-Configure Forward and Reverse Zone

     sudo vim /etc/bind/named.conf.local

Add the following parameters in the file:

## Forward zone
zone "khoshraftar.com" IN {
    type slave;                                         #Type is Slave
    file "/var/lib/bind/zones/khoshraftar.com.db";      #where save the zone sync
        masters {
                172.17.116.10;                          #who is the Master server?
        };
         allow-query { any; };
         allow-transfer {none; };                       #Not allow zone transfer
};
## Reverse zone
zone "116.17.172.in-addr.arpa" IN {
    type slave;
    file "/var/lib/bind/reverse/116.17.172.in-addr.arpa";
        masters {
                172.17.116.10;
        };
        allow-query { any; };
        allow-transfer { none; };
};

3-5-Verify the syntax of the /etc/named.conf file:

      named-checkconf /etc/bind/named.conf.options

If the command displays no output, the syntax is correct.