Computer: Synchronize Data between two Servers behind Firewalls How to synchronize files between two servers behind different firewalls that don't see each other using rsync and and ssh with root access on both servers and through a user's laptop as man in the middle.
Computer: Run a Stable LizardFS After some evaluation, LizardFS is my recommended distributed file system. It provides redundancy for huge amounts of storage and is fast enough to serve as docker storage backend. But still there are a lot of pitfalls that could make you loose your data. Here is a collection of my learnings.
Computer: Extract Mac-OSX
pkgInstaller How to extract a Mac-OSX installation package on Ubuntu Linux to analyze the contents.
Computer: SuisseID as Code Signing HSM How to get a SwissSign codesign certificate using the SuisseID as HSM on Linux Ubuntu. Example how to digitally sign a windows executable.
Computer: Docker Swarm and GlusterFS Docker swarm is very easy to setup and maintain. It distributed containers over several nodes in a cloud, offers load balancing, redundancy, failover, smooth updates. But local volumes stay locally, so you need a cluster or network file system. That's where gluster enters the stage.
Computer: Preiswerte flexible Multmedia-Lösung Baue einen coolen Videospieler für weniger als hundert Franken aus einem Raspberry Pi mit OpenELEC als Betriebssystem, Kodi (ehemals XBMC) als Mediencenter und xStream als Add-on, um beliebiege Videos in Deutsch aus dem Internet zu schauen.
Computer: Add or Replace Harddisk on Running System Simple command line steps to add a new harddisk to a running Linux LVM system, and how to exchange an old harddisk with a newer bigger one. Even with no reboot needed.
Computer: Setup OpenLDAP Server in Docker Setup an OpenLDAP server in a docker container, including a LDAP Administration Manager web interface, requires just four commands in a Linux bash. Three more to enable TLS.
Computer: Overwrite Console Key Mapping Ctrl+Alt+F1 A description on where and how to change the basic Unix key mappings on Ubuntu. If you want to reconfigure Ctrl-Alt-Del or Ctrl+Alt+F1 or Alt+F1, you find a solution in this article.
Computer: Stream Editor sed Overview and Reference I was missing a one-page overwiew of sed commands, so here they are: Command Line Options option description –version show version –help show short usage -n –quiet –silent only produces output when explicitly told to via the p command -e SCRIPT –expression=SCRIPT explicitly add script expression -f SCRIPT-FILE –file=SCRIPT-FILE read script from file -i[SUFFIX] –in-place[=SUFFIX] [read ...]
Computer: Docker Overview This article is for all those who are confused by the Docker concepts and who would like to have a short summary of the important things, instead of a widely distributed documentation.
Computer: Cross Compile OpenSSL for Windows on Linux This article explains how to configure and build the OpenSSL library on a Ubuntu Linux to run on 32bit or 64bit Windows.
Computer: Cross Compile on Ubuntu Linux for Windows Using MinGW Cross Compiling on a Linux (Ubuntu) for Windows targets has become really simple in the last years.