Archive for April 2017

The RFC 2119 written by Scott Bradner of the Harvard University in Cambridge, has been interpreted in the German language by Jean-Louis Fuchs of the Adfinis SyGroup. It is not a literal translation, but rather an interpretation in German. The objective of this interpretation is to provide and spread the RFC 2119 in the German-speaking…

When it became known that Microsoft was going to port MSSQL to Linux, many sysadmins surely thought that it would end in catastrophe. Enterprise providers have not been brilliantly successful with Linux ports so far – trying to install (and configure) Oracle DB on a Linux server is one of the worst experiences known to…

Where web servers are concerned, there are many options to improve the security of connections, but also to prevent cross-site attacks. SSL Simple SSL/TLS configurations are shown here first, followed by expanded SSL/TLS features, such as HSTS and OCSP. In principle, it is always recommended that the current protocols and cipher suites are copied, for…

Matrix is primarily characterised as a chat protocol. This protocol is designed to link up existing chat solutions such as XMPP (Jabber), IRC or Mattermost. Comparison to XMPP XMPP has the same idea, a difference is in the protocol structure. XMPP has a base RFC, and can thus be extended using various XEPs. This makes…

If you work a lot with Linux systems and still set them up manually, you’re familiar with the problem of never having the right installation medium available. It also wouldn’t hurt to have a rescue system. Many people use live systems like grml, Kali or Damn Small Linux. But each of these systems has limitations,…