zentralwerkstatt’s gists

zentralwerkstatt / instructions.md

Last active April 14, 2020 09:43

Set up a "GitHub Pages"-style repository on a server

On the server:

sudo apt-get install git-core
cd ~
mkdir repo.git
cd repo.git
git init --bare
nano hooks/post-receive
  git --git-dir /home/user/repo/.git --work-tree /home/user/repo pull origin master
chmod +x hooks/post-receive

zentralwerkstatt / instructions.md

Last active March 29, 2019 19:49

Unix cheat sheet

df -h: Show disk space for humans
scp file user@server:path/file: Transfer file over SSH
whereis command: Path to command
ssh user@server: Start SSH session (exit with exit)
lshw -short: Hardware information for humans
ls -lah dir: Show content of directory for humans, including hidden files
cd dir: Change directory
mkdir: Create directory
rm -rf dir: Delete full directory
rm file: Delete file

zentralwerkstatt / instructions.md

Last active February 2, 2025 22:29

Install Syncthing on Linux

Install the necessary packages:

sudo apt-get install apt-transport-https ca-certificates
curl -s https://syncthing.net/release-key.txt | sudo apt-key add -
echo "deb https://apt.syncthing.net/ syncthing stable" | sudo tee /etc/apt/sources.list.d/syncthing.list
sudo apt-get update
sudo apt-get install syncthing
sudo apt-get install git

Start syncthing once:

zentralwerkstatt / instructions.md

Last active August 7, 2017 20:05

Blender, Unreal Engine, Touch Designer

Shortcuts (Blender):

Shift + A: New object
E: Extrude face, edge, or vertice
F: Create face or edge between selected vertices
Tab: Edit mode/object mode
Ctrl + Tab: Mesh mode
S: Scale
G: Move
R: Rotate
Middle button: Rotate view

zentralwerkstatt / instructions.md

Last active April 14, 2020 09:43

Basic Security

On the client: ssh-copy-id user@server
On the server, in etc/ssh/sshd_config: PasswordAuthentication no
sudo apt-get install ufw
sudo ufw allow ssh
sudo ufw enable
sudo apt install fail2ban

zentralwerkstatt / instructions.md

Last active July 5, 2021 18:58

SSH into Linux Subsystem for Windows

In /etc/ssh/sshd_conf, set UsePrivilegeSeparation to no
In /etc/ssh/sshd_conf, temporarily enable plaintext passwords
In /etc/ssh/sshd_conf, change port (e.g. to 23) to avoid confusion with Windows SSH server
sudo service ssh restart
Add alternative port as a new rule to Windows firewall
On the client: ssh-copy-id user@server
In /etc/ssh/sshd_conf, re-disable plaintext passwords

To fix Could not load host key ... error:

sudo ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key

zentralwerkstatt / instructions.md

Last active April 13, 2018 03:47

"The following packes have been kept back..."

sudo apt install packages

zentralwerkstatt / instructions.md

Last active August 20, 2020 09:42

Change git history comprehensively

On a Mac, we might need to run first: git config --global core.trustctime false
Rebase: git rebase -i --root
Edit according to instructions
Set commit date as author date: git filter-branch -f --env-filter 'GIT_COMMITTER_DATE=$GIT_AUTHOR_DATE; export GIT_COMMITTER_DATE'
Force push: git push origin +master
In case of errors: git rebase --abort

zentralwerkstatt / instructions.md

Created November 1, 2018 18:34

Update Anaconda environment

source activate environment
conda update --all

zentralwerkstatt / instructions.md

Created May 15, 2019 17:51

Shared folder on Linux

Add user with home directory: sudo useradd -m username
As user, change default shell: chsh -s /bin/bash
Set temp. password: sudo passwd username
Create group: sudo groupadd groupname
Add users: usermod -a -G groupname username
Make shared directory: sudo mkdir /home/groupname
Set group for shared directory: sudo chgrp groupname /home/groupname
Add write access for group: sudo chmod g+w /home/groupname
"Set GID" for group (all files created owned by group): sudo chmod 2775 /home/groupname
Change to different user to test: su - username

Fabian Offert zentralwerkstatt