Das Werkstatt

IDEA: First: Only one word: " sicherheitshalber ." printed on T-shirts, pullovers, etc: Different colors, different styles, different fonts - but the same word. The "." (dot) at the end is important ;) In today's times, this word unfortunately seems to be used (and accepted?) a &...

Another option that I now find slightly cleaner than modifying "/etc/sysctl.conf" directly, is to use the "/etc/sysctl.d" folder to keep this config separately (and easier to enable/disable it). 1) Create a file called "/etc/sysctl.d/70-disable-ipv6.conf" 2) Put the sam...

[PROBLEM] I've attached a SATA disk using a SATA-to-USB3 adapter. dmesg output said it shows up as "/dev/sdh", but gparted didn't show it - and gparted threw the following error message: Problem opening /dev/sdh for reading! Error is 123. [SOLUTION] It was a 3.5" regular spinning HDD...

[PROBLEM] Trying to add a new PPA, using the (already) good-old "add-apt-repository" just hangs and waits forever. Nothing happens. Probably timeout of some kind. I run into this on every new installation since 18.04, and I keep forgetting what it was. Shame on me... [SOLUTION] APT is try...

I'm very happy that recent kernels support bluetooth chipsets properly out of the box! Hooray! But, I like to have bluetooth disabled after boot - and only turn it on manually on demand. Especially on notebooks. On recent Xubuntu 18.04, the following command disables that the bluetooth service start...

[PROBLEM] Installing the "torbrowser-launcher" package on Xubuntu 16.04, claims that it cannot verify the signature of the downloaded tarball: "Signature Verification Failed. You may be under attack or there might just be a network problem" [SOLUTION] The package uses an outdate...

More infos and instructions for resetting the router to default values in this Lifewire article about the WRT54GL's default password

Quick overview: This guide assumes you already have the required packages installed. Create a partition of type "7" (in fdisk): HPFS/NTFS/exFAT Format it using "mkfs.exfat" 1) Create the partition: Create a partition and set it to type "7" in fdisk. 2) Format the partit...

We've already written a HowTo for creating a LUKS encrypted disk image file, but here's the "regular use case": An encrypted USB stick. NOTE: This HowTo looks way longer and more difficult than it actually is. If you're in a hurry, or don't need the additional information just jump to the ...

[PROBLEM] On Debian 9 (Stretch), any apt action hangs at the following IPv6 host: 0% [Connecting to prod.debian.map.fastly.net (2a04:4e42:1b::204)] [SOLUTION] It's not really a solution, but a workaround since the IPv6 path in this network doesn't seem to be configured. I've disabled IPv6 on that m...

[PROBLEM] I've installed "Jami" for testing on Xubuntu 16.04 (64bit), using snapd: $ sudo snap install jami --edge I could open Jami once and created an account. Then it crashed, and since then I suddenly cannot open Jami/Ring anymore due to this error: Unable to initialize. Make sure the...

[PROBLEM] I was trying to set a fsck on next reboot on my / partition. So I did: $ sudo tune2fs -c 1 /dev/sdb1 ...and my heart almost stopped when I got this error :shock: : tune2fs: Bad magic number in super-block while trying to open /dev/sdb1 Couldn't find valid filesystem superblock. [SOLUTION]...

"A Smooth Sea Never Made a Skillful Sailor"

Source: http://blog.ervits.com/2015/11/virtualb ... vm-in.html

(aus)geizen ist geil!

...mit einem Comicbildchen einer kleinen Paradeispflanze dazu

[PROBLEM] Trying to copy data from an SD card onto a mounted Samba share (CIFS on Ubuntu Server 18.04). But every now and then the copy freezes and then exits with the following error message: rsync: [generator] write error: Broken pipe (32) dmesg says: [197910.744340] CIFS VFS: Free previous auth_...