In my opinion it gets more and more important to secure Internet services using standards like TLS. I try to summarize some things I did in the last few days to have my services more secure. Certificates To get startet with asymmetric (public/private key) security, a signed public key,

Bald gehts auf die grosse Reise: 3 Monate Neuseeland und Australien. Los gehts am 10. April 2014, zurück sind wir am 10. Juli 2014. Während der Reise werde ich ab und zu hier berichten. Die Reiseroute haben wir bereits geplant: Wir fliegen über Singapur (dort bleiben wir für 3 Nächte)

My Jolla [http://jolla.com/] mobile phone arrived short after Christmas 2013. After using it a few days, here is a short review of my experience with it. Introduction: What is "Jolla"? Before I start my little review, I want to share what Jolla is and why I

An introduction into LLDP What is LLDP? LLDP is a network layer 2 protocol, called "Link Layer Discovery Protocol". It transmits many information about the device and ports to all network neighbors. It is vendor independent and specified in IEEE 802.1AB [http://standards.ieee.org/getieee802/download/

This blog has moved from a full blown Wordpress blog to a lightweight, statically generated blog using Jekyll. Why Writing a blog post in Wordpress was very circuitous, many clicks had to be done until the blog post was published. The editor was not friendly in making code samples with

This week Logstash 1.2.0 has been released with exciting new features. Logstash is (from the Website): "[...] a tool for managing events and logs. You can use it to collect logs, parse them, and store them for later use (like, for searching). [...]" The full Changelog can be

Comparing two files with the diff utility is an easy task diff <file1> <file2> But if you want to compare the output of two commands without temporarily saving it to a file, it's a bit more complicated, because diff needs two inputs: diff -u

Keepalived is a Linux implementation of the VRRP (Virtual Router Redundancy Protocol) protocol to make IPs highly available - a so called VIP (Virtual IP). The daemon is furthermore able to provide load balancing mechanisms using the "Linux Virtual Server" (IPVS). In this blog post I'll