Thread:Project:Support desk/How to make single registration for 2 wikis?

Hello everyone, I have a small problem, I have a domain with 2 wikis installed ( version 1.18.2), each on one subdomain. It's like this: wiki1.mydomain.com wiki2.mydomain.com Each wiki is in one language (english, french) Also each have one database: mydomain_wiki1, mydomain_wiki2 , and tables are Wiki1_ and Wiki2_

My problem is that I want a single registration account, so if someone register on wiki1 he is automaticaly registered on wiki2. I tried using the "shareddb" thing from here: http://www.mediawiki.org/wiki/Manual:Shared_database but I can't seems to do it right. Also the CentralAuth extensions is a no, i do not have shell access. I tried changing the localsettings of my wiki2 so only one database (instead of 2, here with only mydomain_wiki1) is selected, with this "solution" I only have 1 registration for the 2 wikis, but when I create a page, it's created on the 2 wikis (I do not want that).

I'm a total "noob", so I'm counting on you to help me, and if you need additional infos, please tell me.

Thank you very much for your help.