Point Domain Name
I have a domain name already, and I can add subdomains to it, so I will create a new subdomain, grafana.seanwasere.com and point it to the new IP address.
After waiting some time for the record to propagate, I can then visit
http://grafana.seanwasere.com:3000 instead of using the ip address of the server as the url.
Adding a domain name to your Grafana Server is optional.
To check the progress of a domain name propagation, you can use the dig command.
or a good online tool such as DNS Checker
Purchasing A Domain
If you don't have a domain name, and your colleagues can't lend you one or even create a subdomain for you, then you can get cheap domains from Namecheap
Use the Domain Name Search Tool and try anything. The cheapest domains at the moment are the .xyz and .website domains.
Namecheap also has an advanced DNS config tool which allows you to create subdomains. The @ symbol in the image below is an alias for the main domain that is being managed.
The minigames line in the above example, is an example subdomain added for the main domain that is being managed.
The blurred out text in the image above, will be the IP address of your server that your main or sub domain name should point to.