Ubuntu basic commands

Update packages/apps

sudo apt update && sudo apt upgrade

Compress/Decompress a file

tar -zcvf compressedFileName.tar.gz directoryName

tar -zxvf compressedFileName.tar.gz

WSL use ssh key on remote server:
eval ‘ssh-agent -s‘
ssh-add -t 60m ~/.ssh/id_rsa
ssh -A user:address

MySQL

sudo apt install mysql-server
sudo mysql_secure_installation
sudo /etc/init.d/mysql start
sudo service mysql restart

For WSL automatic start after restart:

sudo update-rc.d mysql defaults

SSH

adduser roman
usermod -aG sudo roman
su - hideo
mkdir ~/.ssh && chmod 700 ~/.ssh
touch ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys
nano ~/.ssh/authorized_keys
sudo ufw app list
sudo ufw allow OpenSSH
sudo ufw enable
sudo ufw status
sudo apt update
sudo apt upgrade -u
sudo reboot

nginX

sudo nano /etc/nginx/nginx.conf
uncomment server_tokens off;