Linux Router – Setting up Dynamic DNS (DDNS) Optional – RHEL 7 / CentOS 7

Read:

In this video, I show how to setup Dynamic DNS using bind9 and isc dhcp on CentOS 7. This can be achieved on CentOS 6 just fine. Just replace “systemctl” with “service”.

This is value added.

Written version: https://www.bromosapien.net/media/index.php/Linux_Router_and_Firewall

Notes:

If you use debian or anything debian based, I cannot help you.

Prerequisites:
-DHCP and IPTABLES is setup properly for your network

You can follow along completely if you use these distributions:
–Fedora 20+
–CentOS 7

Commands to note:
vi — It’s an editor in linux. i for insert, o for a new line, shift+g to go to the end of the file, ESC for command mode. :wq saves your file (zz does too).
systemctl restart name –name being the name of the service
yum install – installs packages

Files/Folders to note:
/etc/named.conf
/etc/rndc.key
/var/named

source

centos 7