blog.vanderkussen.org

Yesterday i needed to setup a Xen machine where only the MAC address of the host (dom0) was allowed by the firewall. Because of this, a bridged setup could not be used since all domU's will be using their own MAC address. So i needed a routed setup instead. That way the host (dom0) will be used as a "router" for the domU's and the firewall would only see the MAC of the dom0 host when communicating. Configuration is quite easy. Edit /etc/xen/xend-config.sxp and comment out the bridge related stuff.

I created a logo for the LOAD event. This is what i have for now, but I'll probably make some other designs to. If you've comments or suggestions, please don't hesitate to put them here.

I voted for Gloriana.

Yesterday was the Fedora 12 release party in Antwerp (Belgium). It was held at the Don Bosco school which had a good infrastructure for this event. A nice room, drinks, food, network, ... So, thanks to them for providing this in their spare time ! I came a little earlier because I needed to setup a pxe server so people could get Fedora 12 installed on their machines if they wanted.

Fedora 12 has been released, and for this there's a release party being held (probably the first Fedora release party in Belgium). This will be a relative small event where the focus lies on getting together. You'll also have the opportunity to install Fedora 12 on your machine. More info on the Fedora Wiki.

Yesterday i had a machine that wouldn't register with the red Hat network. It gave me the following error : "The SSL certificate failed verification". After some searching i noticed that the machine was still living in 2001, so all i had to do was set the time right.

If you're using Samba to provide network shares to your users, it might be usefull to autmatically create the their homedir when they access it the first time. This can be done by adding this line to the [homes] directive : root preexec = /usr/local/sbin/mkhomedir.sh %U This is the mkhomedir.sh script itself : #!/bin/bash if [ ! -e /storage_users/DOMAIN/$1 ]; then mkdir /storage_users/DOMAIN/$1 chown $1:"DOMAIN+Domain Admins" /storage_users/DOMAIN/$1 fi exit 0

I'm publishing the Thesis that I and my fellow student Joost Ringoot made for our Graduate training in evening school. It might be useful to someone. Projectwerk_2008_AntiSpam

The other day one of our internal DNS needed to be shut down for maintenance. During that time people complained about slow responsiveness of the applications running on our RHEL machines. Because the DNS maintenance was the only change we made at that time we started looking in that direction. As it turned out, it seems that Linux is trying to contact the first DNS server in the resolv.conf file for every DNS query.

Recently i had a VPN connection with OpenSwan that didn't stay alive. Adding the following option to the config fixed it

dpdaction=restart