As per subject line this is completely O.T., but anyway...

I have a remote Slack server using a dynamic dns service which is currently
"lost in space". Through miscommunication while moving it to easydns.com
from one of their cobranded services, the box was left updating ip to the
old service, but was moved to the new. My bad luck it appears to have had
an update since then. I'm pretty sure it's still online, but obviously,
can't ssh to an unknown address to fix it! I CAN get this solved tomorrow
by getting the (non-technical) folk on whose premises the slack box is
located to log in locally, but I'd rather do it the hard way :-)

As part of its auto updating (it is behind a cable router) it wgets a php
page on another server where I have an hosting account that echoes back the
correct address, writes it to a tmp file and so on... I WANT THAT ADDRESS!
I have ftp access only (no shell) on the server with the echoing page.

Question: what kind of change to the echoing php page could I upload to
write the address to a file I can retrieve by ftp, or even mail it to me.
(It's running freebsd if that's useful).

Would appreciate any suggestions. Apologies in advance for those who are
offended by the post.

Moss Hart