block specific IP addresses
in [Postfix]
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From: groups on 15 Apr 2010 19:35 mouss wrote, On 04/15/2010 06:03 PM: > CT a �crit : >> I have several boxes that "check" my relay every 40 seconds to >> check that the server is up. >> >> After multiple attempts to get the number of checks reduced I would >> like the know the preferred way to block specific IP addresses in Postfix. >> >> I have no issue with checks.. but every 40 seconds is ridiculous. >> > > the first answer is: try to reach their abuse/postmaster. if you fail, > then firewall them. if so, just DROP their traffic (this will cause more > delay on their side). you can also redirect their traffic to a "slow > silly server" ("torture server"). Mouss.. I could use a host based fw.. but would rather use Postfx as there are only a handful of pollers.. Thx Charles
From: Ansgar Wiechers on 16 Apr 2010 04:01 On 2010-04-15 groups wrote: > Syntax follow up question... > > 1.2.3.4 <tab> REJECT > or > 1.2.3.4 <tab><tab> REJECT 1.2.3.4 <any_amount_of_whitespace> REJECT Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
From: CT on 16 Apr 2010 07:49 Ansgar Wiechers wrote: > On 2010-04-15 groups wrote: > >> Syntax follow up question... >> >> 1.2.3.4 <tab> REJECT >> or >> 1.2.3.4 <tab><tab> REJECT >> > > 1.2.3.4 <any_amount_of_whitespace> REJECT > > Regards > Ansgar Wiechers > Ansgar.. Thank you.. a tab issue "bit me" sometime ago in BSD hence the question.. Charles
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