Well, it would seem that ClamAV has a wonderful Milter feature. How good is it? Exceptionally good. How much of a pain in the ass is it? Well, If you have to ask, you haven’t installed it. Here are some gotchas and how to solve them. SSN Heuristics: This is very Valuable, but leads to(…)
If you run a blog, website, or have any type of web presense, we’ve all had to deal with the nasty robots / spiders / and nefarious individuals. It’s become a sort of Cat and Mouse game. The problem is allowing others to steal this content or to “probe” your site can be very problematic. (…)
For the past few months, I’ve been experimenting with Fail2ban and SPAM filtering with Postfix. I thought I’d write an update with some preliminary results. They’re pretty impressive and I would have to say it’s been quite a success. I’ve tuned the filters to the point where I have very few false positives (less than(…)
I use spam / ham auto learning with Spamassassin. (It works wonders for me) combined with a few tricks and fail2ban I have a pretty robust and effective Spam mitigation system. The key to using bayesian learning of Spam and Ham is to keep it updated. This is important if you want to keep your(…)
So I came across a computer today that consistently had a redirect to “toptrafficsources.com” on all address bar keyword searches. Needless to say it’s annoying to have every little thing typed into the browser address bar redirected to a malware site. After doing the usual things with Firefox like checking “keyword.url” and default search providers(…)
SPAM.. Ugh. The bain of all our existence. I just thought I’d share my recipe to combating spam on my server(s) anyway. It’s an incredibly potent option and you’ll almost see an immediate decrease in spam on your network. I use Postfix, SpamAssassin, and Fail2Ban. So here’s how to do it. The first thing you’re(…)
