usermod -a -G examplegroup exampleusername
usermod -aG sudo username
useradd appadmin1 -u 4100 -g 4100 -m -s /bin/bash
systemctl status sshd
ss -tulnp | grep LISTEN
netstat -tulnp | grep LISTEN
sudo ufw status verbose
sudo ufw status numbered
sudo ufw allow 22/tcp
sudo apt install openssh-server
sudo systemctl enable ssh --now
sudo raspi-config
ssh-keygen -t ed25519-C "your_email@example.com"
git config --global user.name "your name"
git config --global user.email "your_email@example.com"
git remote -v
git remote set-url origin git@github.com:2cld/ai.git