This meta.wikimedia.org page about enabling image and file uploads states:
I'd like to enable enable uploads, but what steps do I need to take to avoid problems? Can anyone help?
-- Alec Ustickealec@usticke.orgwww.usticke.orgDreamHost
You need to make sure that the permissions are set so that the proper people have write access while the general public (so to speak) has read access. Very few things need permissions to execute.
Thanks, ravenoak. Any idea how I do that?
You can use shell access (telnet in) to edit the permissions if you know some simple Unix/Linux commands, or if you are using WinSCP to Secure FTP your files in, it allows you to change that right there in the FTP client.
You should probably read this on permissions:https://panel.dreamhost.com/kbase/index.cgi?area=149&keyword=permissions(part of the Dreamhost Knowledge Database) and do a little more looking around the help area mentioned above. Changing permissions can royally f*ck up your site if you don't know what you're doing.Worst comes to worst, email support and ask for advice on how to approach this. I'd think they'd rather can that email than one that says, "Sorry I messed up my entire account."
FYI, I received the following response from support.