nanog mailing list archives
Re: Performance Issues - PTR Records
From: Jeff Walter <jeffw () he net>
Date: Wed, 02 Nov 2011 15:02:57 -0700
On 11/2/2011 2:57 PM, Matt Chung wrote:
<snip!> Although we will be assigning a record for each address, my question is why is the application (specifically HTTP) dependent on a reverse record ? What is the purpose?
HTTP has no requirement that the connecting client have reverse DNS setup. Some servers have reverse lookups enabled, and some of those undoubtedly block until the record has been retrieved or all avenues of discovery have been exhausted... and this is likely where the issue exists. As to why the server or the script/application its running needs the record, you'd have to ask the developer.
-- Jeff Walter Network Engineer Hurricane Electric, AS6939
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Current thread:
- Performance Issues - PTR Records Matt Chung (Nov 02)
- Re: Performance Issues - PTR Records Jeff Walter (Nov 02)
- Re: Performance Issues - PTR Records Ben Jencks (Nov 02)
- Re: Performance Issues - PTR Records PC (Nov 02)
- Re: Performance Issues - PTR Records J (Nov 02)
- Re: Performance Issues - PTR Records Matt Chung (Nov 02)
- Re: Performance Issues - PTR Records Larry Smith (Nov 02)
- Re: Performance Issues - PTR Records Jimmy Hess (Nov 02)
- Re: Performance Issues - PTR Records PC (Nov 02)
- Re: Performance Issues - PTR Records Paul Ebersman (Nov 04)
- Re: Performance Issues - PTR Records Tim Franklin (Nov 04)
- Re: Performance Issues - PTR Records Paul Ebersman (Nov 04)
- Re: Performance Issues - PTR Records Tom Lanyon (Nov 06)