Archive for the ‘Network’ Category

Decency on it’s way

I am developing a new mail server anti spam solution called decency.  It is a one-in-all solution attempt implementing a policy server (postfix policies), a content filter and a log parser. All three of them run in separate servers but are designed to communicate with each other to improve the spam detection rate a lot. [...]

Endian 2.3 in Xen on Debian Lenny

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 [...]

Using OpenVPN as fallback connection

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 [...]