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TTL settings on LBR''s main zone

From: eric@micromaniac.com
Date: Sunday, October 7, 2001
Time: 9:50:22 pm

I have 2 servers load balanced 50/50, with LBR TTL 120, interval 30, hostlife
60. About 30 other domains point to the LBR, and they work fine. I currently
have the TTL's of those other domains set at the default settings. But I have
the TTL's of the main domain set to refresh 2000 and caching, retry and TTL of
SOA to 600. (I didn't change the other domains since they are CNAMEd to the
main domain anyway.)

But is changing the main domain's TTL's even necessary since the LBR is set at
120/30/60? It probably can't hurt, but I've heard stories of some major ISPs
ignoring ("changing") low TTL's to 24 hours.




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