https://old.andunix.net/ 2026-06-04T03:57:14+00:00 https://old.andunix.net/ https://old.andunix.net/_media/favicon.ico text/html 2014-04-28T09:01:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/linux/debian/cleanup_packages Cleanup Packages Purge uninstalled Packages If a package is removed, it is only uninstalled, but the configuration remains on the system. This is a good thing, as you are able to reinstall the package and have it configured with the old configuration. But if you want to cleanup this old stuff, you can ge a list of uninstalled (but not purged) packages with this command: text/html 2013-03-03T14:10:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/blog/2011/project_pda Project PDA I'm currently working on a project called 'PDA'. PDA stands for “Personal Digital Assistant”. I used several PDAs over the last two decades, from Sharp, Psion, Palm and others. But they all were just Personal Datastorages. I always missed the text/html 2009-08-11T15:06:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/blog/2009/zfs_playground ZFS Playground This small demo shows the basic ZFS operations. You will need a Solaris 10 or OpenSolaris host and 1,2GB of disk space. Preparation First, go to a directory where you have enought space. We will need 1,2GB for 6 files of 200MB. The files are named like disks, but they are only files for this demo. text/html 2014-02-02T12:02:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/p/dmx/program Program The controller (Arduino) can be programmed to animate the value on a DMX channel from one value to another. The contoller has an program counter which is counted up by one every iteration. The iterations will be 5ms (200Hz), 10ms (100 Hz) or 20ms (50 Hz) long. The value of the program counter ist exchanged between the host an the controller with the command text/html 2014-02-02T11:19:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/p/dmx/protocol Serial Protocol For the communication between the host (PC) and the controller (Arduino), there is a serial protocol over USB. The protocol is line by line, with carriage return (“\n”) as end. The first character denotes the type of command or information. The following commands have been defined: text/html 2013-02-04T22:17:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://old.andunix.net/info/solaris/dladm2dot Virtual Network Visualization OpenSolaris supports virtual networks using virtual interfaces connected with virtual switches. This feature was introduced with Project Crossbow in OpenSolaris 2009.06. To visualize the internal network(s), I created a perl script which takes the output of