[CentOS] nscd

m.roth at 5-cent.us wrote:
> Has anyone had problems accessing random websites since going up to 6.4?
>
> Since about the day after I got partly upgraded, if I try to access
> nytimes.com, or orbitz.com, I get server not found.
>
> With a lot of work, I, my manager, and the other admin, found that setting
> options edns0 in /etc/resolv.conf fixed it - I suspect that the network
> folks updated their internal nameservers (which are M$) about that time...
> but... we got this Thurs. Friday, I went to look, lunchtime, at a story,
> and back to the same. Later, and I think I was playing around, it came
> back.
>
> Just now, over lunch, it failed... until I restarted nscd. My manager
> tells me it's caching... but it seems to be caching momentary failures.
>
> So: has anyone else seen oddness that might be related to nscd?

A quick followup of myself to provide more info: I see, in /etc/nscd.conf,
that all the negative ttl's appear to be 20 sec, but I'm resonably sure
that once I lose it, it's > 20 sec before go back to try again, and it's
still not gone.

      mark