The package of xrdp (Version 6.1.2) that is available in Debian does lack support for Copy&Paste. The „master“ branch of xrdp on github provides this feature but is not packaged for Debian at the moment. To have it available, I built it manually on my Debian server. The procedure took about 1 hour, most of […]
Artikel in Kategorie "Administration"
Ubuntu 14.10 cryptswap1 With LVM Stops Working After Reboot
15. September 2015 in Administration, GNU/Linux.
Today I rebooted an Ubuntu 14.10 that was set up with LVM and encryption. It was unable to use the encrypted swapspace cryptswap1, which ultimately halted the boot procedure with a prompt (S for skip and M for manual resolution, i.e. single-user-mode prompt). The problem appears to be that the UUID (blkid) of the designated […]
Filtering and Rate-Limiting ICMPv6 on a GNU/Linux Server
25. Januar 2015 in Administration, GNU/Linux.
Introduction ICMP (Internet Control Message Protocol) in IPv6 is used for a variety of purposes. As opposed to IPv4, support for some of the applications of ICMP by nodes participating in an IPV6 network is mandatory. On the other hand, due to the security-relvant nature of some of the applications, where in IPv4 it may […]
Using VIm’s „:v“ to Delete All Lines NOT Containing a Pattern
7. Januar 2015 in Administration, GNU/Linux, Programmierung, Technik.
Addendum to my previous post „Using VIm’s „Negative Lookahead“ to Delete All Lines NOT Containing a Pattern„ I received a message from a reader who goes by the name of „bw1“ who points out that my task „to delete all lines in the current file not containing the string foo“ can easily be accomplished by […]
Text-Console Barchart of Storage Utilization
7. Januar 2015 in Administration, GNU/Linux.
Written as a Bourne Shell-Script that invokes a Perl one-liner: LC_ALL=C df -kPT | perl -ane ‚!/(^Filesystem|tmpfs)/ && do { printf(„%-33s: %s\n“, $F[0], „*“ x int((`tput cols`-35) * $F[3] / $F[2])) }‘
Using VIm’s „Negative Lookahead“ to Delete All Lines NOT Containing a Pattern
7. Januar 2015 in Administration, GNU/Linux, Programmierung, Technik.
UPDATE: Please note that „bw1“ has notified me of a much simpler solution than what is described here; please see „Using VIm’s „:v“ Command to Delete All Lines NOT Containing a Pattern„ Some statements have been struck through in the article below because they are false. I want to delete all lines in the current […]
GNU find hat keine Option „-older“ …
20. August 2023 in Administration, GNU/Linux.
… aber eine Funktion „-newer“. Die Funktion „-newer“ ist praktisch, um absolute Zeitangaben zum Aufspüren von Dateien zu verwenden. So würde touch -d „2010/1/1″ /tmp/test.newer find . -type f -a -name ‚core.*‘ -a -newer /tmp/test.newer alle regulären Dateien mit „core.“ als Anfang des Dateinamens finden, die neuer sind als der 1. Januar 2010, 00:00 Uhr. […]
Thumbnails aus allen Bildern im aktuellen Verzeichnis …
27. April 2014 in Administration, GNU/Linux, Multimedia, Programmierung.
… erstellen und daraus HTML mit einer 3-spaltigen Tabelle machen.