I am working with ubuntu server 18.04.3 LTS and installing what i think is MineOS turnkey ontop. using the MineOS-node (apt-get+systemd) guide on the wiki, along with the iptables guide to add the rules as well as add a second port to host a double server. (one for a group of friends and one for my family). everything installed correctly and the process was pretty simple up until i tried to download a profile through the webui. none would show up so i downloaded the jar from mojang and put it in the server files in using the ssh. i then was able to get the servers up according to the webui. i made sure the port fowarding is correct according the to TheBreakdown guide for port forwarding. but now when i try to log on the first server which uses the default port for minecraft 25565 with my public ip. i get the error “Authentication servers are down” from the minecraft launcher. and the second server is the same way. following a forum problem i tired pinging google.com to see if i setup my connection right. and through the ssh i got " ping: google.com: Temporary failure in name resolution " as the servers answer.
im a pretty big noob when it comes to ubuntu so any suggestions would be a huge help.