January 2004
Intermediate to advanced
464 pages
14h 47m
English
Content preview from Squid: The Definitive Guide
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Name
negative_ttl
Synopsis
Squid takes the liberty of caching certain error responses, such as “connection refused”
and 404 (Not Found) messages. In most cases, repeating the request
again immediately is likely to result in the same error. This
directive specifies how long Squid caches these errors. Cache hits for
negatively cached responses are logged with TCP_NEGATIVE_HIT in access.log.
Syntax | negative_ttl |
Default | negative_ttl 5 min |
Example | negative_ttl_1 minute |
Related | refresh_pattern |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.