Install Xen on Debian Unstable/testing.
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Install Atheros drivers Debian.
wget http://ftp.de.debian.org/debian/pool/contrib/a/acx100/acx100-source_2006...
dpkg -i acx100-source_20060521-3_all.deb
vconfig add eth0 13
vconfig add eth0 201
ifconfig eth0.13 up
ifconfig eth0.201 up
ifconfig eth0.13 mtu 1496
ifconfig eth0.201 mtu 1496
brctl addbr xenbr13
brctl addbr xenbr201
brctl addif xenbr13 eth0.13
brctl addif xenbr201 eth0.201
ifconfig xenbr13 192.168.13.11/24 up
ifconfig xenbr201 192.168.201.11/24 up
apt-get install apache2 expect cvs gcc make libc6-dev perl telnet
adduser --home /home/rancid rancid
cd /usr/src
wget ftp://ftp.shrubbery.net/pub/rancid/rancid-2.3.1.tar.gz
tar xzvf rancid-2.3.1.tar.gz
cd rancid-2.3.1
./configure -prefix=/home/rancid -localstatedir=/home/rancid/var
make install
chown -R rancid:rancid /home/rancid
vi /home/rancid/etc/rancid.conf
add a group for your units like
LIST_OF_GROUPS="hjemme"
vi /home/rancid/.cloginrc
add user * {rancid}
add password * {password_login} {password_enable}
chmod 600 .cloginrc
chown rancid:rancid .cloginrc
smartctl -a -d 3ware,N /dev/twa0
replace N with the number of the disk