App Unavailable Page

Hello from Minneapolis.

We have a fairly serious upgrade about to be deployed. We may want things to be down for an hour or two.

It would be nice to have a page appear (our log, some message about maintenance, and an approximate time when we might be back up).

It would be easy enough to create an HTML page, but where would I put it so it would be opened, and what would I call it?

I assume someone must have done this by now.

Thank you.

-Bob Gordon

If you are on a cPanel server, you can create temporary redirects for pages from the control panel.

On an Apache server, you can use htaccess for that.
See https://mediatemple.net/community/products/grid/204643080/how-do-i-redirect-my-site-using-a-htaccess-file

The html page itself can be named anything, and the usual place is anywhere within the web accessible space.