Resolving Domains Internally And Externally With Bind9 And Caching Nameserver - Page 2
5. Zone File Creation:
Now there is an issue. :( Where is my shotgun?
I.e. if you have installed bind-chroot, then you will be creating your domain zone file in /var/named/chroot/var/named/ directory, and then you will make a softlink to the /var/named/ directory, but if you didn't install this chroot package, then you are going to create the zone file directly in the /var/named/ directory.
Now the following command works fine, if you have bind-chroot:
$ vi /var/named/chroot/var/named/cbtcandy.org.zone
OR (if bind-chroot is not installed)
$ vi /var/named/cbtcandy.org.zone
and type the following lines into your zone file:
@ IN SOA @ nayyares.gmail.com. (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
@ IN NS nameserver.cbtcandy.org.
nameserver IN A 192.168.1.1
cache IN A 192.168.1.2
www IN A 192.168.1.3
portal IN A 192.168.1.4
You can add as many records as you wish :) in this file.
Note: Here I am assuming that our DNS machine name is nameserver and LAN subnet is on 192.168.1.0/24 , you can change this according to your situation.
Now the following step is needed only if you have created the zone file in the /var/names/chroot/var/named/ directory.
$ ln -s /var/named/chroot/var/named/cbtcandy.org.zone /var/named/cbtcandy.org.zone
6. Editing resolv.conf:
Now to tell our nameserver machine about the order it will look for name resolution, we have to edit /etc/resolv.conf file,
$ vi /etc/resolv.conf
and write the following two lines, but keep them in same order, as we want to first resolve domain resolution query by caching-name server, so we will keep 127.0.0.1 line first, in this file.
Note: I assume that your ISP's nameserver machine IP is 18.104.22.168.
7. Setting Up Host Name:
To set up your hostname according to your domain, we will edit /etc/sysconfig/network file, i.e.
$ vi /etc/sysconfig/network
Now type the following line:
8. Restarting BIND Daemon:
$ service named restart (Redhat,Fedora,Centos)
$ /etc/rc.d/rc.bind restart (Suse,Debian)
Now to test whether your configuration is working fine or not, give the following command:
$ nslookup nameserver.cbtcandy.org
If you get the following result, this means your BIND 9 is working fine:
Now to test your caching-nameserver, give the following command:
$ nslookup www.howtoforge.org
If you are getting the following result, this means the caching-nameserver is working fine.
Note: If you find any problem durring configuration, please feel free to contact me.