“Domain Registry of America” scam

UPDATE: I received a cease-or-desist from DRoA in March 2006 about this post.


Podcast as muzak replacement?

Restaurants and hairdressers in Belgium are complaining because the costs for playing muzak in their businesses (performers’ rights or ‘naburige rechten‘) will rise with 30% to 37% (De Morgen, Dec 4, 2004, p.9).
I wonder: is that the same for people who just play Radio 2 in their shops, those who use a PC with some brand of MP3 player shuffle their CD collections around, and even those who pay for subscription-based digital no-commercials no-talking theme-grouped music?


How do you move a terabyte?

I recently discovered Brewster Kahle’s speech on the NotCon ‘04 podcast about the ambition of The Internet Archive to archive absolutely everything (all books, all movies, all music, …). (There is an excellent transcript on www.hotales.org .) They are currently setting up a second datacentre in Amsterdam, as an off-site copy of the original archive.org. They use massive parallel storage nodes grouped together in a PetaBox rack. You actually need 10 Petaboxes to get to 1 Petabyte (1 rack = 80 servers x 4 disks x 300 GB/disk = +- 100 TB). Since the rack uses node-to-node replication (every node has a sister node that holds a copy of all its data, so that if one of both nodes crashes, the data is still available), the net storage is 50TB.
So this got me thinking: how do you ‘copy’ the contents of PetaBox A to PetaBox B, how do you move 50TB?
Let’s try some numbers from my bandwidth calculator:


Idea: using a URI for sending email

In order to send an email over SMTP, you need 2 sets of information:


IT Conversations: podcasting feeds your brain

There’s only one way to check if podcasting can change your life, and that is by diving completely into it. Since last week, I am the proud owner of a 20GB iPod, (the first Apple product I have ever bought) and it is hard not to be enthusiastic about it. It might not be the cheapest hard-disk MP3 player around, but it is by far the most funky. Especially the user interface was very intuitive, which is important for the ain’t-gonna-RTFM person that I am.


Squid cachemgr.cgi UI hack

Squid has a little system statistics viewer built-in:


Date formatting in GAWK: boot time

I have one server with apparently an exceptional stability:


It’s the latency, stupid!

While working on some bandwidth-related stuff (my bandwidth calculator), I came across an excellent article on “latency vs. bandwidth” by Stuart Cheshire. It was originally written in 1996, so focuses a lot on modems, but Fact 1, 2 and 4 are still valid.


More is better: the quintuple-neck guitar

I remember when I saw my first double-neck guitar, I was really impressed. That seemed like a huge thing to have hanging from your neck. They became really popular in the Led Zeppelin, Yes and The Who era. The idea is to have 2 guitars handy, like a 6-string and a 12-string, or a bass and a guitar, a fretted and a fretless bass, or 2 guitars in a different tuning. But obviously it’s also one of those macho “size-matters” things. The guitarist with the double-neck here is Jimmy Page from Led Zeppelin.


Probe average cpu utilisation (MRTG)

There are two main tools to keep track of your CPU usage: top and vmstat.