[Mimedefang] OT: sendmail limit connections
-ray
ray at ops.selu.edu
Wed Feb 23 18:31:45 EST 2005
On Wed, 23 Feb 2005, Sven Willenberger wrote:
> Another feature, in addition to rate throttling and connection
> throttling in 8.13.x , is the greet_pause feature which delays the
> initial 220 greeting upon connection by up to x milliseconds. Any
> connected server trying to issue mail commands prior to the 220 greeting
> will get met with 550 failures; this is useful for a lot of zombies, etc
> that just blast out spam/virii without any adherence to protocol.
I've heard good stuff about greet_pause and plan to use it as soon as i
get to 8.13.x. What delay do you all typically use to weed out zombies
but respect legit servers? Can you disable greet_pause for the local
network?
ray
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Ray DeJean http://www.r-a-y.org
Systems Engineer Southeastern Louisiana University
IBM Certified Specialist AIX Administration, AIX Support
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
More information about the MIMEDefang
mailing list