Tony Earnshaw wrote:
Red Hat's sgi_fam is
utter shit and even when you've got it running, you'll still get the
same, literally the same, errors.
That's not true... I've run Courier's IMAP server with several
different Red Hat releases, and you won't get any errors when FAM is
configured properly.
This self same famd stuff has previously been *discussed to death* on
this list and no-one has yet come up with "the perfect solution". What
works for me (perfectly) doesn't work for others, I've no idea why.
I've seen primarily two different issues discussed on the list. The
first is sgi_fam not functioning because one or more of portmap, xinetd,
or sgi_fam had been disabled to increase security. The other is that
early releases of gamin had an fd leak that would cause it to stop
working after it'd been used for a while. This was especially
pronounced in virtual hosting setups where all users use the same gamin
daemon.
If you're using a Red Hat release that includes the "fam" package, you
can tell whether or not it works by using rpcinfo:
# rpcinfo -p localhost
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100021 1 udp 32768 nlockmgr
100021 3 udp 32768 nlockmgr
100021 4 udp 32768 nlockmgr
391002 2 tcp 51303 sgi_fam
If rpcinfo doesn't show sgi_fam, then refer back to the message that I
sent earlier today, at 8:36am. It contains all of the info you should
need to make sure that sgi_fam is available (well, unless you've locked
yourself out of portmap, using tcpwrappers).
If you're using a Red Hat release that includes the "gamin" package,
make sure it's the latest one available from Red Hat. It doesn't need
any supporting daemons to run, it should always work.
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