DNS CNAMES

[jbolthouse]

I have some TL CNAMES that I need to replicate on my local DNS to resolve some telephony issues. I am able to get the configuration to work in the local DNS by manually editing named.conf.local in the bind folder, but when I make changes on the admin web site, they overwrite my configuration..

Is there any way to enter the CNAME entries and have them persist reboots and reloads of the configs?

[sixstone]

Hi there,

There is currently just one way of doing this by adding a new domain, setting the hostnames and then the alias.

What do you exactly want to do?

Best regards,

[jbolthouse]

OK... I think i finally got it after a few Diet Cokes and a lot of finagling.

Essentially, I created the zone (thedomain.suff) in the manager, and saved the config changes. This wrote db.thedomain.suff to the /etc/bind directory. I then removed the domain from the configuration in ebox (zentyal). This leaves you with the db.thedomain.suff file in your bind directory, which you will need in a moment.

I took its zone file from named.conf.local:

Code: [Select]

zone "thedomain.suff" {
        type master;
        file "/etc/bind/db.thedomain.suff";
};

and copied it into /usr/share/ebox/stubs/dns/named.conf.local.mas
at the very bottom of the file.

I restarted the DNS  with /etc/init.d/bind9 restart

and the zone configuration properly copied to my named.conf.local

After that, I simply edited the db file in the /etc/bind directory and restarted appropriately.

[jbolthouse]

Sixstone,

I have a Asterisk box running locally. I wanted to set my phones to access vox1.thedomain.suff, and if they were local or VPN'd in, they would get the local IP and avoid NAT. If they were public-side, then they would have to jump through the firewall. Either way I would be preserving the host-name.

thedomain.suff is a top-level DNS record with a registrar/DNS group...  When I would create the zone locally, all thedomain.suff hostnames attempted to resolve on the local DNS (Zentyal). That worked great for the phones, as that hostname was entered in Zentyal. I could have replicated the rest of the DNS zone from my TL DNS, IP Address for IP Address, but the problem came when I came to CNAMES.

On my top-level, I have some funky redirecting happening for Google's apps for domain. This means that I have some names like mail.thedomain.suff mapped with a CNAME entry to ghs.google.com. I needed to build that into BIND on the local side, so that resolution would still happen.

I think I have it working now, but I am a little fearful that a reboot or reload of configs will wipe it out again.. when I have a few free minutes I will BAK everything and try some various reloads and reconfigs.

[sixstone]

Hi there,

The main problem here is your changes will be overwritten in the software upgrades of ebox-dns package.

I'd suggest you to read this post [1] regarding to user's modifications in Zentyal.

Best regards,

[1] http://blogs.zentyal.org/jacalvo/2011/01/04/how-to-customize-the-configuration-files-generated-by-zentyal/