OK, so here's what crazy computer geeks come up with when they're bored of just sitting in the subway and staring out of the window.
Well, first you need a web server (duh). I decided to use lighttpd, as it's said to be small and memory-efficient (which sounded pretty important given what I was trying to do). Apache would probably not be a good choice here. Mind you, I have not done any benchmarks at all, I'm just guessing...
$ apt-get install lighttpd
Then, I wrote a little shell script containing a loop, which invoked lighttpd on port 1, 2, 3, 4, ..., 65535. That's it ;)
#!/bin/bash TMPDIR=/tmp CONFFILE="server.document-root = \"/var/www/\" index-file.names = ( \"index.html\" )" for ((i = 1; i < 300; i = i + 1)) do echo "+++ Starting web server on port $i" echo $CONFFILE > $TMPDIR/lighttpd.conf echo "server.port = $i" >> $TMPDIR/lighttpd.conf /usr/sbin/lighttpd -f $TMPDIR/lighttpd.conf rm -f $TMPDIR/lighttpd.conf done
I'm sure this can be optimized a lot, but it's sufficient for now, and it works.
You can test any of the web servers by running "
wget http://localhost:3556/" (for example). You can kill them all with
killall lighttpd. If you already run some other daemons on some ports, you cannot start a lighttpd on the same port, so you'll end up with fewer than 65535 servers.
In case you try this on your hardware, make sure you have lots of RAM and lots of swap. Don't run this on production hardware. Feel free to post your experiences in the comments.