Installing from Ubuntu repositories
https://launchpad.net/~gehelem/+archive/ubuntu/ostserver
sudo add-apt-repository ppa:gehelem/ostserver
sudo apt update
sudo apt install ostserver ostmoduleshttps://launchpad.net/~gehelem/+archive/ubuntu/ostserver
sudo add-apt-repository ppa:gehelem/ostserver
sudo apt update
sudo apt install ostserver ostmodules