[H-GEN] named on RedHat 7.x
Robert Brockway
robert at timetraveller.org
Thu Aug 8 03:55:16 EDT 2002
[ Humbug *General* list - semi-serious discussions about Humbug and ]
[ Unix-related topics. Posts from non-subscribed addresses will vanish. ]
On Thu, 8 Aug 2002, Ewan Edwards wrote:
> A colleague of mine has recently setup DNS on a RedHat box at home and
> has asked why the default setup seems to have 5 instances of named running
Normally a few copies are pre-forked to improve performance for remote
clients. Apache & squid often do the same thing.
> from start up. I don't yet know anything about configuring bind so I'm
> hoping some one on this list can help me answer the question.
> I assume that if there is no good reason to maintain 5 instances, the next
> question will be asking how to configure it to run, say, only one instance.
Unless he is managing a domain or needing a local caching dns server there
is no need to run _any_ copies of named. If he is needing named I'd leave
it at 5 copies myself. The performance overheads are negligable as any
un-needed apps will be swapped out eventually.
> I've had a look on the network here at a Solaris box and a HPUX box both
> running bind and seen that both have only the one instance running, so I
You seem to have many dns servers running :) It is best to avoid running
daemons when they are un-needed. They bind to a port and theoretically
can be exploitable.
> guess it isn't necessary to run multiple instances.
Cheers,
-Rob
-- Robert Brockway B.Sc. email: robert at timetraveller.org ICQ: 104781119
Linux counter project ID #16440 (http://counter.li.org)
"The earth is but one country and mankind its citizens" -Baha'u'llah
--
* This is list (humbug) general handled by majordomo at lists.humbug.org.au .
* Postings to this list are only accepted from subscribed addresses of
* lists 'general' or 'general-post'. See http://www.humbug.org.au/
More information about the General
mailing list