I reccomend using a site like https://jsonlint.com/ it will help you find the syntax issues. Visibility has an extra , after "lan":true Visibility is missing the , after the } Admins has an extra , after it. every {} indicates a group of name-value pairs. every pair should be separated wit...

It sounds like it doesn't recognize the json file. Its easy to break the json file, make sure your not missing a quote or comma. when adding admins make sure its looks like this "admins": ["name1","name2","name3"] the file should start with a { and end with a ...

it looks like the type of compressed file changed.
try sudo tar -xvf /tmp/factorio.tar.gz -C /opt
you may have to rename the file to .xz first but that may not be required.

I just verified this works and I updated the document.

I plan to split out the ubuntu setup from the factorio setup and update the document to 0.15 when it comes out.
I can make this part of the update.

would anything need to be changed to do this in Debian? Ubuntu is based on Debian, I have not personally used Debian so I can only guess but you may need to install the software these commands use before you can use them. you may also be able to accomplish the same things with a different command. ...

I created a guide on how I set up my server for Factorio. It is a full guide from beginning to end including installing Ubuntu. It includes the information you will need to set up multiple Factorio servers running on one Ubuntu server. I have verified it works with 0.14.21 https://1drv.ms/w/s!Am6ec-...