In the case study file, server quickstart area, page 9 the directions are to install iptables-persistent and then run sudo service iptables-persistent start. When i do that I get an error Unit iptables-persistent.service not found.
I googled it and found this:
It seems since Ubuntu 16.04, iptables-persistent has been replaced by netfilter-persistent. The package still exist and automatically install netfilter-persistent thanks to a dependancy. It's possible to use the following command to start the firewall.
In the case study file, server quickstart area, page 9 the directions are to install iptables-persistent and then run sudo service iptables-persistent start. When i do that I get an error Unit iptables-persistent.service not found.
I googled it and found this: