[support] What is needed to install modules from Web page?

[James Rome]

My Drupal server says: "Your server does not support updating modules
and themes from this interface. Instead, update modules and themes by
uploading the new versions directly to the server, as described in the
handbook." when I go to the module update page. What might I be missing?
I have SSH and FTP installed, and all the Apache2 modules (I think).

This is on OpenSUSE 13.1  64-bit.

Thanks,
Jim