Greylisting is ‘da Bomb!

With my new server, I switched from sendmail to postfix. I also upgraded spamassassin.

The spam count dropped quite a bit, but I was still getting a heck of a lot of it.

Then my friend Bil told me I should be greylisting.

Greylisting is a pretty simple concept. When an email server contacts my server to deliver an email, my server tells it that it is busy and to come back later. It then stores the email information in a database and waits for the originating server to come back.

If the server comes back again, the database gets updated and then the mail is accepted.

The trick is that most spamming engines are fire-and-forget. If they get told to come back later, they don’t bother.

So I setup SQLGrey on my server.

Ho-ly Shit!

The spam has dropped to almost zero. Before I switched to my new server I was getting between 50 and 100 spam messages a day.

Now with the new server and using greylisting, I get maybe 5 a day. And spamassassin is catching 99% of the ones that make it though.

I also installed the sgwi web interface to SQLGrey that lets me look into the database. There are currently around 1100 emails that are waiting for the originating server to make a second attempt. Of those 1100 – 100% of them are obviously junk!

It’s a beautiful thing.

New Server

Well, I took the plunge and moved to my new server tonight. Things appear to be working okay. I still have a couple of services and applications to move over, but the web server and email are working.

We are now running on:

  • Xeon 2.4GHz Hyperthreaded CPU
  • 2 GB RAM
  • 250 GB Hard drive
  • CentOS 4

Whee.

Server Woes

My **#()@!@$@# server keeps hanging on me in the middle of the night.

I have some newer hardware to move to, and the OS is installed, but I need to find time to move all my services onto it.

Hopefully I can get it done this weekend.

Yulia Tymoshenko

I’ve had this image as my desktop wallpaper for quite a while now:

(click for 1280 x 1024 wallpaper)

Today, someone asked me who it was. I knew she was an Eastern European Parliament member or something, but it took me quite a bit of Googling to find her web site again. She is Yulia Tymoshenko.

Go read her bio. Wow.

Thanks YouTube

Sure, as soon as I start to play with embedding YouTube videos into my blog entries, YouTube decides to go off line for some maintenance.

Loverly.

So my blog is a little ugly right now as the YouTube vidoes are just large white blank spaces.

Russian Pop Music

This is pretty fun stuff. Evil Bobby (who ever that is – I got his link from Pharyngula) has links to a whole bunch of Russian pop band videos.

Glukoza
Verka Serduchka: Come To America
Zveri (Звери)

This one made me laugh out loud – and you don’t need to speak Russian to understand what’s going on:

Zveri – Vse chto kasaetsya

And this one (not sure what the song title is) is an amazing piece of work.


Fun poppy stuff!

Get some perspective on Terrorism

Over on The Daily Kos I ran across a wonderful post about getting some perspective on the terrorism threat.

Death and injury are every bit as tragic as they are inevitable for human beings. Understandably, we worry about both, we all cry and mourn when either strike, especially with ourselves or those we love playing the starring role. And I have no desire to down play the loss that anyone feels when someone they love is struck down, be it by terrorism or leukemia. But …some perspective maybe?

Heart disease and cancer will claim about 1.5 million American lives each and every year. As far as accidental deaths (~100,000/year), motor vehicle accidents far and away lead the pack (+40,000/year), with accidental poisoning and falls in place and show1. You can play with those stats all kinds of ways. But the bottom line is that over the course of a civilian lifetime, the odds of falling victim to Al Qaeda rank somewhere between falling off a ladder to your death and being struck by lightning inside your home.

Here’s a message for both our homegrown Neoconservative, bloggy, gutless wonders and the Jihadi nutcases overseas: I grew up in the cold-war, my parents went through WW2 for crying out loud. We are not paralyzed with fear over Osama. Despite your best efforts, I’m not obsessed with terrorism. Sheesh, I barely even think about it. I face bigger statistical risks, in every way, every day, and on every scale, just driving across a set of railroad tracks and down the interstate smoking a cigarette in the rain, and I don’t worry much about that either.

And if you want me to be afraid for my very nation’s survival, Jebus H Christ, you damn well better be able to wave around a threat considerably more convincing than a rag-tag group of zealots who shit in caves and beg other people to put on suicide belts sporting a rip cord detonator.

I fully agree. This Republican “you must be terrified” bullshit has got to stop.