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 OptionsAdressesRegular Expressions(GNU extension)(GNU extension)GNU EscapesCommands 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 [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.