On Fri, 22 Feb 2002, Sheldon Hearn wrote:
> > smtp_reserve_hosts = 10.0.0.0/24
> > smtp_accept_reserve = 50
> > smtp_accept_max_per_host = 5
> > smtp_accept_max = 550
>
> Bleh, looks like I _was_ misreading the spec after all. Seems the
> smtp_accept_reserve and smtp_reserve_hosts options affect
> smtp_accept_max but not smtp_accept_max_per_host.
smtp_accept_reserve *interacts* with smtp_accept_max; I wouldn't say
that it *affects* it.
smtp_accept_max => "There must never be more than this many incoming
SMTP connections at once."
smtp_accept_reserve => "When the number of connections is high, the last
this many of them are reserved for connections from
the nominated hosts."
smtp_accept_max_per_host => "No host may have more than this many SMTP
connections at once."
All three rules apply simultaneously. Clearly, (2) and (3) can interact.
If you've only got 2 reserved hosts, and you won't accept more than 3
connections per host, then there's no point in reserving more than 6
connections for them.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
