Slow website load with CNAME, fast when using IP

Posted by Nate Strandberg on Server Fault See other posts from Server Fault or by Nate Strandberg
Published on 2012-10-23T16:51:37Z Indexed on 2012/10/23 17:04 UTC
Read the original article Hit count: 230

Filed under:

apache2

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ubuntu

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dns

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bind

I setup two DNS servers on my network: ns1.byte-werx.com && ns2.byte-werx.com

I can ping the DNS servers and get a fairly good response time, when I dig them I also get a fairly reasonable response, but any website I filter through them is painfully slow (an upwards of 20+ seconds) -- verifiable by performing a tracert or attempting to access the URL in a browser.

The DNS servers are running CentOS 6.3 and BIND9 with 500MB of memory (I figure that should be more than enough?). I have a reverse look-up zone (1.168.192) along with two website zones (www.byte-werx.com and www.stayhomedental.com)

If I access the websites using their IP the page loads nearly instantly so I do not believe the issue is with the hosting server, but that is running Ubuntu Server 12.04 and Apache2 with 12GB memory.

Any thoughts? I do not have the named.conf file in front of me but I can edit this post to include it if you feel it would be useful.

Thanks for any advice!

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