VirtualBox: install extension packs
Download and install extension packs to provide: The virtual USB 2.0 (EHCI) devicesThe virtual USB 3.0 (xHCI) deviceVirtualBox Remote Desktop Protocol (VRDP) supportHost webcam passthroughIntel PXE...
View ArticleChange X11 window title
A typical use case is when an editor is setting its window title to the full long path name such that the actual important part, the file name, falls off the edge on the right and becomes invisible....
View ArticleExtract open tab links from Android Chrome
There are a few possibilities using various browser extensions or Chrome remote debugging in Developer Tools. See information at the bottom for these. The quickest and easiest solution, however, is...
View ArticleDisable snap and switch from snap to deb packages for Firefox in Ubuntu 22.04
Disable snapd Remove Firefox (and other) snap packages: snap list snap remove firefox Stop snapd service: systemctl stop snapd.service systemctl stop snapd.socket systemctl stop snapd.seeded.service...
View ArticleInstall non-snap version of Google chrome
Ubuntu is providing more and more software, including chrome, as snap packages. As a result I may actually end up moving away from ubuntu / xubuntu after many years as a happy user, but that is an...
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No sftp connection to Ubuntu 22.04
After upgrading to Jammy Jellyfish I could no longer connect from my phone using AndFTP (sftp). AndFTP gave the error message: CONNECT myhost There was a problem while connecting to myhost:22...
View ArticleTurn your tablet into and additional linux screen with touch and stylus input
Normally one would buy a Wacom tablet / stylus combo. But then, Weylus provides a very good free alternative: sudo groupadd -r uinput sudo usermod -aG uinput laczik echo 'KERNEL=="uinput",...
View ArticleOUCS VPN
Install: The AnyConnect VPN Client for Linux is available from the OUCS Software downloads page for Linux; see release notes for details. Unpack the downloaded file using an archive manager or type...
View ArticleClear your DNS cache
Are you experiencing a website with a dynamic IP address not loading? First thing to try is clearing your DNS cache: resolvectl flush-caches
View ArticleNorwegian sailing links
Den norske los Notices to Mariners The Norwegian Pilot Guide – Sailing Directions Symbols and Abbreviations Tides and other data Sokn (Stavenger) tides Miscellaneous Notices to Mariners RCCPF...
View ArticleNo login prompt when connecting to your hotel WiFi
If your Android phone does connect to the hotel guest WiFi, but does not display the login prompt: Settings > Long press on WiFi Settings (cog icon) for connected WiFi access point Advanced...
View ArticleMake your own QR codes
Install the tools: sudo apt install qrencode zbar-tools Create the source: nano text_for_QR_code.txt MECARD:N:Dr AN Other;TEL:+441234123456;EMAIL:AN Other...
View ArticleHP iLO ssh access
Even the most recent version of iLO is trying to use cypher algorithms that have been deprecated in OpenSSH: ssh Administrator@10.1.0.235 Unable to negotiate with 10.1.0.235 port 22: no matching key...
View ArticleCheck server temperature using HP iLO
ssh Administrator@10.1.0.235 -oKexAlgorithms=+diffie-hellman-group1-sha1 -oHostkeyAlgorithms=+ssh-rsa </>hpiLO-> show /system1/sensor1 /system1/sensor1 Properties DeviceID=01-Inlet Ambient...
View ArticleWarning: failed to launch javaldx – java may not function correctly
When starting a LibreOffice component, e.g. lowriter or localc, it may complain with the above warning about not being able to start javaldx. In my case indeed some LibreOffice packages were not...
View ArticleUnpack, modify and repack an epub file
Although epub format e-books are simple ZIP archives, care has to be taken in how unzip and zip are used to manipulate them. mkdir wrk && cd wrk unzip -O UTF-8 old.epub nano...
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Zoom function in Calibre e-reader
There does not seem to be one. Control + mouse scroll will adjust the font size, but not the overall scale of the display. This is especially annoying when at the default zoom level some of the text...
View ArticleColour less pipes
By default less will display colour escape codes directly and will not interpret them. Some programs will only output colour when running in a colour capable terminal; by default a linux pipe is not...
View ArticleSTM32CubeProgrammer and STM32_Programmer_CLI fail with unknown device ID
Solution: Use SWD with reduced clock speed. Mind you, I have only encountered this problem when trying to program STM32 clones, so an alternative solution may be to only use genuine ST devices...
View ArticleSTM32CubeProgrammer and STM32_Programmer_CLI fail complaining about missing...
This problem can be caused by not reading the correct device ID, in which case the 0xNNN above will be 0x000. Obviously those files do not exist. See solution here. Another reason reason might be that...
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