My mailman web interface has disappeared

[bill at horne.net (Bill Horne)]

Thanks for reading this:

I have a Mailman service set up on my Linux box, for a couple of personal
lists.

I tried to use the web interface this morning, and got a 404 error: the
mailman interface seems to have vanished from the machine.

The Mailman service itself is running normally.

I've been using the up2date service to keep the machine current, so I'm
assuming that a configuration file must have been overwritten. Has anyone
seen this before?

TIA.

Bill Horne