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Author: halfgaar

http://www.halfgaar.net/

Halfgaar is Wiebe. Wiebe is a contributing author on this weblog. He also has a lot of stuff (such as long, in-depth articles) on his personal website.

Wiebe works at YTEC, where he is a senior developer of customer-specific tailor-made software (“klantspecifieke maatwerk software“) for clients in a few select markets: wholesale, printing and healthcare.

Allowing apache to set Nagios cmd file

On debian, to prevent: Error: Could not stat() command file ‘/var/lib/nagios3/rw/nagios.cmd’! Read More »

Making a service available on more ports with iptables

If you need services to be availble on multiple ports, you can use: iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 1000 -j REDIRECT --to-port 25 --match comment --comment "Explain." Read More »

Setting up pptpd and pptp for a VPN

source and source and source. I'm keeping it as simple as possible. Read More »

Making a Compaq Deskpro sff boot without keyboard

To boot a compaq Deskpro sff without keyboard, you need to configure the BIOS in a special way. I found this: Read More »

Disabling exim port 25 listening when zimbra is installed

Edit: This doesn't work anymore I don't think, because more modern versions check for SMTP conflicts and don't allow this. Read More »

Zimbra has no shutdown init script on Debian and Ubuntu

There is a K01zimbra in rc6.d for reboot, but not in rc0.d. See this bug report I made. Read More »

Zimbra dependancy on ‘file’

Zimbra has a dependancy on 'file', which the installer file won't check for. It is also a WONTFIX bug, so beware: install file(1)! If you don't, mails get stuck in queue because amavisd won't run.

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Some links to read for getting into Atmel processors

A sort of bookmark: Dragonhide and absolute beginners guide.

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Getting electronic parts cheaply

A sort of bookmark: Futurlec and digikey.

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Find all manually installed packages on a Debian system

This should find all manually installed packages on a Debian system:

aptitude search '~i!~E' | grep -v "i A" | cut -d " " -f 4 Read More »