On Sat, 9 Oct 1999, Peter Radcliffe wrote:
> Pete Naylor <pete@???> probably said:
> > are - generally it's because they assume it hasn't improved since SunOS
> > 5.5. SunOS 5.7 has a partial resolver rewrite which allows for
> > concurrent DNS requests. Configured properly, nscd is a great tool.
>
> The lack of concurrent lookups was a minor one of my complaints.
It was my only complaint.
> Being set up to cache negative responses by default is another
Nobody can help you if you misuse the software. You should configure it
appropriately for your needs.
> and
> caching A records at a level that doesn't understand round robin DNS
> is another
That would be a nice feature to add, but it's not terribly important.
> - it stopped one of my mailservers being able to fallback
> to a backup mailserver on many occasions until I forcibly ripped it
> out being one of the more major complaints.
Please explain in more detail. I fail to see how round robin DNS is
related to providing multiple mail servers with any sort of failover
mechanism so I have to assume that this is another case of misuse.
> If you need it for passwd or other caching, fine (you can set it to
> just cache the things you want it to cache), but using it to cache DNS
> is broken. This is what caching name servers are for.
They're very different applications though, and each has its pros and
cons. An ideal solution probably involves using both (though I wouldn't
necessarily run named on the same host).
--
/*-------------------------------------------------------------*
* Peter James Naylor ## SysAdmin, Supernal Technologies, Inc. *
*-------------------------------------------------------------*
* pete@??? ## <http://www.supernal.net> *
*------------------------------------------------*/
