This article is about a strange network problem occuring when used bridging in a XEN environment. Symptoms Some DomU is not reachable from the network anymore. The problem persists after restarting the DomU (all: reboot, shutdown+create, destroy+create). Possible: The DomU still has a virtual NIC, if pings are send from DomU via console only arp-requests [...]

This article is about setting up Endian 2.3 on a XEN machine without hardware virtualization (hvm). We work in a shared office space. It’s none of those big anonymous spaces where you can rent in on a monthly basis, but it does not belong to us alone. We share it with p4930 (architects) and control-b [...]

This article is about how to setup a fallback connection to reach your network if your NAT fails (eg your primary router with NAT dies and your failover without NAT comes up). A week ago, our internet provider (T-Online, Deutsche Telekom) in the office decided to cut our connection – or at least he could’nt [...]