Linux

Various topics related to GNU/Linux.

Update GNOME Keyring Password

Especially in enterprise environments, authentication is done not through /etc/passwd, but via SS...

Spacewalk

Topics related to using Spacewalk to manage Linux systems.

Do What?

Installing MATLAB on Linux

Not enough space in /tmp I got this error when trying to install MATLAB on Fedora 29. This is be...

Installing Mathematica on Linux

Won't Launch - "libfontconfig.so undefined symbol" This is because Mathematica ships with some w...

Wayland!

Run GUI Apps As Root Okay, so this doesn't work by default for a reason. It's a bad idea to run ...

Personal Config Notes

RPM/YUM/DNF

Python

Python3 Packages Out-of-the-box: python3-devel python3-magic python3-numpy python3-opencv p...

Misc

Allow Executable to Bind Ports < 1000 sudo setcap CAP_NET_BIND_SERVICE=+eip /path/to/binary ...

Self-Hosting

Correct SSH Permissions

chmod 700 ~/.ssh chmod 644 ~/.ssh/authorized_keys chmod 644 ~/.ssh/known_hosts chmod 644 ~/.ss...

Basic SystemD Service File

Here's the template I use for a basic SystemD service file. It's super boring. Just executes a co...

OpenVPN

openvpnā€“ERROR: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2) This is...

Disable snap in Ubuntu 20.04

snap list sudo snap remove <package> # repeat for all snaps in snap list, except core ...

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