Re: sendmail starting extremely slow
From: Jeff Penn (jeff+list_at_jrpenn.demon.co.uk)
Date: 04/30/04
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Date: Fri, 30 Apr 2004 20:04:25 +0000 (UTC)
>>>>Thomas Schweikle <tpsX@vr-web.de> wrote:
>>>>
>>>>
>>>>>sendmail start extremly slow on two FreeBSD systems. Both are
>>>>>connected to a network, but there is not normaly a DNS-server reachable.
>>>>
>>>>>It takes minutes to start sendmail on these machines.
>>>>>Any idea what I can do against this?
I had the same problem with sendmail which was cured by removing INET6
support from the kernel. At the time I was in the process of changing
MTA's, so did not investigate further.
I recently experienced very slow response problems with net/openldap-
server. This was caused by the client defaulting to a URI of
ldap://localhost. tcpdump -n -i lo0 showed that the initial access
used ::1, which had to time out before reverting to 127.0.0.1. Although
the server supports IPV6, it does not appear to be used by default.
Could have been a similar problem was affecting sendmail, possibly
attempting to access bind (caching). I seem to remember disabling bind
would also cure the problem with sendmail.
Jeff
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