Pritunl VPN Server codes for Ubuntu 20.04
>>nano install-pritunl.sh
sudo tee /etc/apt/sources.list.d/mongodb-org-5.0.list << EOF
deb https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 multiverse
EOF
sudo tee /etc/apt/sources.list.d/pritunl.list << EOF
deb https://repo.pritunl.com/stable/apt focal main
EOF
sudo apt --assume-yes install gnupg
wget -qO- https://www.mongodb.org/static/pgp/server-5.0.asc | sudo tee /etc/apt/trusted.gpg.d/mongodb-org-5.0.asc
gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 7568D9BB55FF9E5287D586017AE645C0CF8E292A
gpg --armor --export 7568D9BB55FF9E5287D586017AE645C0CF8E292A | sudo tee /etc/apt/trusted.gpg.d/pritunl.asc
sudo apt update
sudo apt --assume-yes install pritunl mongodb-org
sudo systemctl start pritunl mongod
sudo systemctl enable pritunl mongod
Ctrl+O & Ctrl+X to save and quit
>>chmod +x install-pritunl.sh
>>./install-pritunl.sh
...
And then open the web browser, input the IP of VPS as the URL.
Follow the prompt of the page to continue setup and config.
Good luck dude!