hartzcs

Member
Mar 12, 2005
16
0
151
Could someone tell me what the point is to use cPanel DNSonly? How is it different or any better than using a secondary DNS service? I might be missing something here, that's why I'm asking.

Thanks
 

hostmedic

Well-Known Member
Apr 30, 2003
544
0
166
Washington Court House, Ohio, United States
cPanel Access Level
DataCenter Provider
why dnsonly

cPanel DNS ONLY is a free product that allows you to run a DNS server which will be automatically updated by any servers that you link to it running the cPanel Server Suite.

Using DNS Clustering in WebHost Manager, you can create a cluster between your standalone name servers and any server running the cPanel and WHM. This means that any DNS changes made on your cPanel server will be sent to your standalone DNS server(s). You will no longer have to use local name servers with cPanel and WHM.

So why do this...

A good example is as follows

Earlier today we lost a disk array on our server. - if that server was servicing as our nameserver
(even if just 1 of them )

ie - ns --- then even if ns2 ns3 and ns4 were online - 1 out of every 4 dns requests would potentially fail.

I'm not sure about you - but a 25% loss is kinda poor ;)


the magic of the dnsonly product is this allows for the entry of any site into cpanel to be written to another dns server - mainly the actual dns server vs the server hosting your sites...

We have about 45 or so servers in the datacenter - and then have 3 others outside of our datacenter - each of those other 3 run dnsonly

This helps ensure DNS queries - as well as the uptime of our sites - email etc...

While you could do this manually - or via an outside service - you could do like we have and partner w/ a few other companies doing colo and barter space.

I hope that helps cpanel dnsonly is free - and synchronizes in real time - you dont have to set up anything else ...
 

hartzcs

Member
Mar 12, 2005
16
0
151
Thanks, been here a couple years but don't visit a lot. Usually when things blow up, which thankfully isn't too often.
 

expedio

Active Member
Jun 30, 2007
36
0
56
DNSOnly is the free alternative to DNS clustering and setting up nameservers.

A sample would be if you have 6 hosting servers and 2 DNS servers, you can use DNSOnly for the nameservers to cut the licensing costs and yet have cpanel DNS cluster functions.
 

cPanelDavidG

Technical Product Specialist
Nov 29, 2006
11,216
10
313
Houston, TX
cPanel Access Level
Root Administrator
DNSOnly is the free alternative to DNS clustering ...
Actually, you need DNS-Only to perform DNS Clustering in a cPanel/WHM environment (at least in the way we officially recommend doing DNS Clustering).

Though if I understand you correctly, you mean that DNSOnly is the free alternative to acquiring additional cPanel/WHM licensing solely to deal with DNS queries or attempting to cluster using only other cPanel/WHM servers.

At this time we recommend that you use DNS-Only machines to handle DNS Clustering rather than trying to do some sort of round-robin setup or DNS clustering solely with cPanel/WHM machines.
 
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hartzcs

Member
Mar 12, 2005
16
0
151
Has anyone been able to get DNSONLY installed lately? I've tried it on 3 machines with 3 different versions of redhat or redhat based linix and it never finishes. I even tried an older version of CentOS 4.3 with the same results. It scrolls the same set of periods endlessly for days before I give up and kill it off.
 

cPanelDavidG

Technical Product Specialist
Nov 29, 2006
11,216
10
313
Houston, TX
cPanel Access Level
Root Administrator
Has anyone been able to get DNSONLY installed lately? I've tried it on 3 machines with 3 different versions of redhat or redhat based linix and it never finishes. I even tried an older version of CentOS 4.3 with the same results. It scrolls the same set of periods endlessly for days before I give up and kill it off.
If you're having a hard time installing cPanel DNS Only, then I'd recommend submitting a support ticket with us.
 

maysoft

Well-Known Member
Nov 10, 2005
64
0
156
I did finally submit a ticket several days ago, but got no reply...
 

maysoft

Well-Known Member
Nov 10, 2005
64
0
156
(message removed)
I have sent you a PM.

Thanks

Dmitry
 
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