Smart HowTos

Xen and serial ports access from domU

Howto use the serial ports (/dev/ttySX) from a xen domU

Shared hosting server + NAT + virtualhosts reachability

How to make virtualhosts visible to each other on a shared hosting server behind a Firewall.

Xen: Debian Lenny domU and 4gb seg fixup error

I've recently done a dist-upgrade from Etch to Lenny of a xen domU (in order to use the 1.4.6 version of zabbix monitoring software), but at the reboot of the vm I noticed the "4gb seg fixup" error in console/logs.
This is the solution that worked for me:

Debian Xen Networking with VLANs Smart HowTo

How to connect different virtual machines to different networks in a Xen virtualization environment with bridged networking setup using 802.1q VLAN support provided by Linux.

Debian Xen Smart HowTo

Installation and configuration of the Xen 3.2 virtualization system with Debian GNU/Linux 4.0 (Etch)