} On Mon, 22 Apr 1996, Neal Becker wrote:
}
} > How can I turn off rfc1413 ident? I'm wondering if this may be the
} > cause of some complaints I'm seeing about timeouts before the banner
} > comes up when accepting smtp incoming connections.
The implementation I did for smail actually did the ident lookup
*after* sending the banner since this seemed to me to have fewer
problems with hitting timeouts....
} > This seems to do the trick. Setting rfc1413_query_timeout = 0s seems
} > to be stopping rfc1413.
If the query timeout is zero then that should prevent the lookup ever
being done (actually the smail implementation was that 0 gave an
infinite timeout, and -1 disabled it).
} On Tue, 23 Apr 1996, Piete Brooks wrote:
}
} > There *should* be a "no_rfc1413_domains" list, to allow for broken domains,
} > or better still, a "rfc1413_timeout" which allows the timeout to be set per
} > domain regexp.
Some poor people may be using old broken systems based on BSD 4.2 net
code (examples I know of are some Ultrix implementations and MIPS
Risc/OS 4.x), and when you combine those with broken and
misconfigured CISCO routers (which return HOST/NET UNREACHABLE for
blocked connections), mean that your SMTP connection gets broken if
you do RFC1413 lookups!
} I will add a default timeout option (as in Neal's patch) to the next
} release. The more complicated option has gone on a longer-term list for
} consideration.
There is going to be some mind bending syntax in exim files :-)
Nigel.
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