EMERGENCY - need to secure my server against an ongoing SPAMMER
Scot L. Harris
webid at cfl.rr.com
Mon Mar 14 14:46:10 UTC 2005
On Mon, 2005-03-14 at 04:08, Roger Grosswiler wrote:
>
> as soon as you don't need e-mails out of those ranges, it's quite helpful, i even blocked some ranges in the
> beginning. when i set up rbl-checking, i had to have patience for about 1 month, since then, i just have 2-3 attempts
> per day. RBL sorts in good quality good from bad traffic. Unfortunately, it doesn't block those zombies - perhaps
> infected by a worm.
>
> But, at least for those IP's you can save yourself also dns-traffic ;-)
>
> Roger
Another tool that defeats zombies almost 100% is greylisting. Implement
greylisting and your system will not have to spend additional resources
running spamassassin or rbl checks on spam coming from zombie systems.
--
Scot L. Harris
webid at cfl.rr.com
Everything that you know is wrong, but you can be straightened out.
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