memcachetop is a nice perl-script for displaying live stats from memcached. The author kept portability in mind, so it has not much dependencies and might run on many systems.
For scrolling with the mouse-wheel in GNU screen, the following line is needed in ~/.screenrc:
termcapinfo xterm*|rxvt*|kterm*|Eterm* ti@:te@
The search-engine of this blog bothered me for a while. That's why I implemented a fulltext-search. I hope it is easier now to find the right content.
Lets Encrypt was lately quite often in the media. Letsencrypt is a very easy to use tool which provides certificates for free. Those certificates are valid on most common browsers. I never understood why certificates are expensive that's why I tried out letsencrypt(and I like it!). In this article, I will replace all cacert-certificates on a kolab-server. Therefore I will install the letsencrypt-certificate on: apache2, cyrus-imapd and postfix.
Convert video to different formats:
Mp4 (H.264 / ACC):
ffmpeg -i INPUTFILE -b 1500k -vcodec libx264 -vpre slow -vpre baseline -g 30 "OUTPUTFILE.mp4
Webm (VP8 / Vorbis):
ffmpeg -i "INPUTFILE" -b 1500k -vcodec libvpx -acodec libvorbis -ab 160000 -f webm -g 30 "OUTPUTFILE.webm"
Ogv (Theora / Vorbis):