people.wikimedia.org hosts some of the user public files, in the form of
people.wikimedia.org/~username. The server runs on rutherfordium.
NOTE: First you need shell access in production to get to the server that hosts
people.wikimedia.org. Do that first.
How to upload files
Use scp and ProxyCommand in to copy files via a bastion host to your home directory on rutherfordium.eqiad.wmnet. Put files into a directory called "public_html". If that doesn't exist yet, create it with mkdir.
Who has access
If you are a member of any admin group that gets shell access, you also have a user on rutherfordium. Access is automatically granted to the "all users" group.