Tips & tricks

	no cache!
	header("Cache-Control: no-cache, must-revalidate");

	control the cursor with style

	only lines shorter then 5000 chars:
	awk 'length($0) < 5000' access_log > acces_log.n

	_FFMPEG_path."ffmpeg -an -y -t 0:0:0.001 -ss 0:0:0.000 -i \"$file\" -f image -img jpeg \"$gen_path/file%d.jpg\"


I'm using SSH to tunnel thru my company's firewall to allow easy access to the 
servers inside the firewall when I'm at home.  On the server side I issue 
this command:

ssh -f -C -R2001:localhost:23 pctom sleep 8h

this connects to my home pc, which has an external address via the cable 
modem.  The sleep command keeps the connection open so that when I get home I 
can enter this command:

telnet localhost 2001


DVD img branden:
growisofs -dvd-compat -Z /dev/cdrom=/home/erik/F-7-i386-DVD.iso