As promised— here's the article that covers that info: https://www.digitalocean.com/community/articles/how-to-isolate-servers-within-a-private-network-using-ip

As promised— here's the article that covers that info: https://www.digitalocean.com/community/articles/how-to-isolate-servers-within-a-private-network-using-iptables https://www.digitalocean.com/community/articles/how-to-isola... Let us know in the comments if you have any other suggestions :)