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Q&A Duplicated instance of VSCodium in Awesome WM with Tyrannical

I'm using Awesome WM (v4.3) with Tyrannical plugin on Debian 12 and I observe an unexpected behavior of VSCodium. Using the following configuration (in rc.lua config file of Awesome WM), when I st...

0 answers  ·  posted 3mo ago by zetyty‭  ·  edited 2mo ago by zetyty‭

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Q&A Download a TLS certificate from the command line

You can use openssl for that. openssl s_client -connect codidact.com:443 -showcerts </dev/null | openssl x509 > codidact.pem

posted 3mo ago by GeraldS‭

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Q&A How to use several keyboard layouts with Awesome WM?

I can't set two keyboard layouts with Awesome WM (v4.3) on Debian 12. Using the following configuration (in rc.lua config file of Awesome WM), only the french layout seems to be usable. The us lay...

1 answer  ·  posted 2mo ago by zetyty‭  ·  last activity 2mo ago by tantan‭

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Q&A Vulkan errors from headless chromium

Headless chromium gives me many errors: $ chromium codidact.com --headless [0914/093555.796025:ERROR:angle_platform_impl.cc(44)] Display.cpp:1086 (initialize): ANGLE Display::initialize error 0: ...

0 answers  ·  posted 2mo ago by matthewsnyder‭

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Q&A How does the OOM Killer stop its victim process?

I couldn't find a definitive authoritative documentation anywhere but this seems pretty good: Mel Gorman: Understanding the Linux Virtual Memory Manager, Section 13.4 Once a task is selected, t...

posted 22d ago by Iizuki‭

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Q&A Disable ability of users to enable lingering in systemd

I managed to disable the feature via polkit. To do this I created two policy files: /etc/polkit-1/localauthority/50-local.d/50-disable-linger-self.pkla [disable loginctl linger self] Identity=un...

posted 22d ago by GeraldS‭

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Q&A How do I solve the error 'Dependencies installation failed'?

How do I solve the error 'Dependencies installation failed' when installing a program using an installer in Bottles? I'm using Bottles 51.15. Console log 15:08:16 (INFO) Installing dependenc...

1 answer  ·  posted 10d ago by riQQ‭  ·  edited 10d ago by riQQ‭

Question bottles
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Q&A How do I solve the error 'Dependencies installation failed'?

Just run the installation again, Bottles already deleted the file with the not-matching checksum. This might be required multiple times if there are mutliple files to be downloaded and installed al...

posted 10d ago by riQQ‭

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Q&A If I have /home on a separate partition, how can I move it back to the root partition?

Some Linux users prefer to have /home mounted on a separate partition from the filesystem root, while others prefer a unified partition. I can find plenty of tutorials out there for moving /home on...

1 answer  ·  posted 8d ago by Karl Knechtel‭  ·  last activity 8d ago by GeraldS‭

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Q&A How to extract .tar.gz archive?

tar can do it all: $ tar --extract --ungzip --one-top-level --file archive.tar.gz That will result in a directory named according to the archive (so just archive in this case) containing the ex...

posted 30d ago by Iizuki‭  ·  edited 23d ago by Iizuki‭

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Q&A How to identify which Docker container an overlay is for?

You can find that when you run docker inspect $CONTAINER. You can automate this with a simple loop like this: for CONTAINER in $(docker ps -qa); do docker inspect $CONTAINER |grep -q $DIRNAME...

posted 8d ago by GeraldS‭  ·  edited 8d ago by GeraldS‭

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Q&A How to enable SysRq key?

I want my SysRq key to be fully functional. When I look in sudo sysctl -a I see kernel.sysrq = 1 in the output. This tells me it should be working. To test, I run echo h > /proc/sysrq-trigger ...

0 answers  ·  posted 6d ago by matthewsnyder‭  ·  edited 6d ago by matthewsnyder‭

Question arch-linux sysrq
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Q&A Vanishing menus in KDE core components

Turns out this is a known bug in QT 5 that has been fixed in QT 6. It only happens in the following constellation, which I hit exactly: Wayland Two or more screens different scaling per scree...

posted 1d ago by GeraldS‭  ·  edited 1d ago by GeraldS‭

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Q&A How do you terminate a DHCP lease in OpenWrt?

There is not a way to do this from the Web UI (LuCI). Instead: SSH into the router Delete the corresponding line from /tmp/dhcp.leases However, note that this is not enough to get a new IP. ...

posted 1y ago by matthewsnyder‭  ·  edited 1y ago by matthewsnyder‭

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Q&A Dnsmasq vs. dnscrypt-proxy

I am trying to run a DNS server on my LAN. I set it up where: Dnsmasq is the "initial" server that clients see Dnsmasq resolves internal domains, and handles overrides (such as if I want to blo...

0 answers  ·  posted 1y ago by matthewsnyder‭

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Q&A Copy to clipboard from terminal with Vim bindings

Vim has multiple "registers", which in modern parlance is multiple internal clipboards. By default, yank sends to an anonymous register, which is separate from the clipboard. However, you can make...

posted 1y ago by matthewsnyder‭  ·  edited 1y ago by matthewsnyder‭

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Q&A How do you eval SSH agent output in fish?

There are three options. I will list them from least practical to most, because I don't want people to stop reading halfway through :) Parse ssh-agent output with your custom script and re-print...

posted 1y ago by matthewsnyder‭

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Q&A How do you eval SSH agent output in fish?

SSH agent prints some envar commands for sourcing in a shell. However, these are bash-style, and I use fish. Fish barfs at the bash syntax. How can I fix it?

1 answer  ·  posted 1y ago by matthewsnyder‭  ·  last activity 1y ago by matthewsnyder‭

Question fish ssh-agent
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Q&A SSH key added to agent, but keeps asking for password

After some digging, I was able to figure out the problem. I actually have multiple keys. In Kwallet, I noticed that one of them has the wrong passphrase. So looks like I put the passphrase of Key X...

posted 1y ago by matthewsnyder‭

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Q&A SSH key added to agent, but keeps asking for password

I have my key added to ssh-agent and they show up in ssh-add -l. When I try to actually SSH to a host that requires the key, I still get prompted for a password. I enter it again and again and it s...

1 answer  ·  posted 1y ago by matthewsnyder‭  ·  last activity 1y ago by matthewsnyder‭

Question ssh-agent
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Q&A Simplest way of stripping leading/trailing whitespace from file or program output

I'll post this as an example of what I'm looking to do. The following script: import sys a = sys.stdin.read() b = a.strip() c = map(lambda s: s.strip(), b.splitlines()) for s in c: p...

posted 1y ago by matthewsnyder‭

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Q&A How to securely erase data from a thumb (solid state) drive

Answering your question as written, this is a hardware-specific question. Since solid-state storage chips typically keep the details of which cells are being used to write data hidden from the OS, ...

posted 1y ago by r~~‭

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Q&A How to securely erase data from a thumb (solid state) drive

How do you securely erase data from a thumb (USB/flash) drive? With traditional (magnetic/spinny) hard drives, it used to be that you could use various tools to simply overwrite with random data, ...

1 answer  ·  posted 1y ago by matthewsnyder‭  ·  edited 1y ago by matthewsnyder‭

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Q&A How do you terminate a DHCP lease in OpenWrt?

I am testing some DHCP stuff, and I want to manually end a lease so I don't have to wait hours for them to expire. How can I do this with OpenWrt?

1 answer  ·  posted 1y ago by matthewsnyder‭  ·  last activity 1y ago by matthewsnyder‭

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Q&A Why does a reverse hexdump truncate the message?

$ echo "4c 6f 72 65 6d 20 69 70 73 75 6d 20 64 6f 6c 6f 72 20 73 69 74 20 61 6d 65 74 2c 20 63 6f 6e 73 65 63 74 65 74 75 72 20 61 64 69 70 69 73 63 69 6e 67 20 65 6c 69 74 2c" | xxd -r orem ipsum...

1 answer  ·  posted 1y ago by TRiG‭  ·  edited 1y ago by Canina‭

Question xxd