July 24th, 2008
So I read on Slashdot today that Edward Davidson, the “Spam King” escaped from federal prison with the help of his wife.
(Update: it now turns out that after the escape, Mr. Davidson killed his wife and one of his children, and then committed suicide. This blog post, intended as a light-hearted tongue-in-cheek piece, was written before I learned of this. Kind of throws the whole thing in a different light.. Kids, please don’t become spammers — it really isn’t worth it.)
One obvious observation that can be made here is that, unless he is very certain that he will be able to evade justice for the remainder of his life, this was a pretty stupid thing to do: the punishment for escaping from prison is likely to be a lot harsher than the 21 months in minimum-security he received for his original crime.
Another question that came up in the /. comments is whether 21 months in minimum-security prison is an appropriate punishment for a spammer. Many people made the point that, although obnoxious, spamming is a non-violent crime and should therefore be treated less seriously than, say, murder.
I disagree.
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Posted in misc | 2 Comments »
June 22nd, 2008
With my subscription to XS4ALL, I received a Thomson Speedtouch 716 ADSL/Wifi router, currently running software release 6.1.9.6. Behind that router, I have a Linux server which serves as the webserver for the blog you’re reading right now, as well as my mailserver and a few other things. The Linux server also acts as a firewall for the rest of my network:

As you can see, the ADSL router and anything connected to it through the WiFi is considered untrusted: the real access point to my internal network is the Linux machine.
Among other things, the Speedtouch has the ability to support Voice-Over-IP by attaching an analog phone. Unfortunately, this functionality does not work in combination with the “assign public IP to a machine on the local network” setting. Which is a pity, because behind the router is my Linux server, running a web- and mailserver among other things, and I really want that server to have my public IP address. Partly because having the server NATted could cause problems with mail, in particular, in the sense that when I send out mail to another server, some suspicious spamblocker software may take offense if the address reported in the headers of my outgoing mail does not match my actual IP. But mostly because having a web/mail/FTP/whatever server hidden behind a NAT, just feels wrong.
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Posted in hacks, linux | No Comments »
April 16th, 2008
So, this Saturday, I jumped out of an airplane.
The jump was a birthday present for my father, who has always been very interested in everything related to planes. But of course, when we gave him the gift certificate, it went without saying that me and my brother would jump as well.
And it was COOL! All three of us loved it.
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Posted in me, misc | No Comments »
February 24th, 2008
My shiny new Nokia N810 Internet Tablet arrived this week, and I like it!
(Bias alert: my friend Dirk-Jan works for Nokia in Finland as a project manager on the N810, so that made me a little more interested in this gadget than I would otherwise have been.)
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Posted in cool-tool, linux | 3 Comments »
February 3rd, 2008
A week or two ago, the ancient laptop I use as my personal web/mail/fileserver and firewall, suddenly got a bit flaky: it kept running, but all attempts to write to the disk failed. Naturally, this prompted me to get extra conscientious about making sure everything of importance was backed up regularly (my e-mail was already being backed up automatically each day, but I discovered that the MySQL database containing my Wordpress articles was not in the backup set — oops). A reboot fixed the problem, however, so I didn’t run out and get a replacement drive just yet.
However, last Thursday the same thing happened again, and this time after a reboot all I got was the message “primary hard disk not found”. So that’s why my server was unreachable for the past couple of days. It’s quite possible that I lost some mail, too — I have a fallback mailserver through my DNS provider, but I’m not sure that they will have retained everything for three days. If you sent me an e-mail recently and have not received a response yet, please send it again.
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Posted in Uncategorized | 1 Comment »
December 4th, 2007
This post is not going to contain any original insights into the spam problem, but I need to vent a bit. And, as the title suggests, apparently the news still hasn’t reached all the people it needs to reach, so maybe it won’t hurt to repeat it again.
So yesterday, as happens every couple of months, a spammer somewhere in Pakistan decided to randomly pick the mwolf.net domain as the fake ‘from’ address for his various unsavoury commercial offerings. Which means, of course, that I get a few hundred bounces from well-meaning but naive mailservers, configured by well-meaning but naive admins. Read the rest of this entry »
Posted in linux | 3 Comments »
November 19th, 2007
Hi all,
I have reason to believe that some of my mail from my mwolf.net account is not reaching the intended recipients. If you sent me an e-mail recently and did not get a response from me, it may be that I sent one but it didn’t arrive. If this is the case, please re-send your message and I will try to reach you though some other way. Alternatively, you can leave a comment on this post. Sorry for the inconvenience.
And yes, I am aware that I have not posted anything new on this blog for the past half year or so..
Posted in me | No Comments »
March 25th, 2007
In response to my article about using the recent IPTables module to fight brute-force password attacks, based on an idea from Andrew Pollock, a reader worked out the idea into a complete firewall script, with configurable whitelisting, the ability to block multiple ports, and several other enhancements. Read his post for the details.
You can download his firewall script here. You can contact the author at the address meetscott at the domain netscape.net.
Posted in hacks, cool-tool, linux | No Comments »