... 'Videos Publisher' and 'Articles Publisher'. Categories can be configured to allow submit for one of these specific usergroups only via usual Joomla ACL. For one Joomla installation I recommend last two case studies: https://alterbrains.com/joomla-extensions/administration/multisites-manager/case-studies

Please note that usual and light versions are actually different, light version is non-invasive and phpBB is displayed as it is. Full version loads phpBB inside Joomla with custom SEF URLs, as a result not all phpBB extensions will ...

Yes, it's possible: Joomla users and single jomsocial users table can be shared, other JomSocial tables can be separate per site as usual.

... No matter, it's up to you. I prefer subdomains. Does all site use own /administrator or it just one site? Each site has own /administrator as usual. i want: dansband.musikmixen.se retro.musikmixen.se and musikmixen.se (default site) Logo and Sam2Joom should be diffrent. User and jomsocial ...

Having Joomla database table is not a guarantee that it's possible to share database data, an extension should use native Joomla database layer as well.

These are usual symlinks, there are tons of articles in Google:
http://www.nixtutor.com/freebsd/underst ... lic-links/
etc.

First site (master) will have usual media folder. Second site (slave) should have a symbolic link (symlink) named as this folder and pointed to folder of master, so actually both sites will use same folder and same files. Symbolic link is ...

Actually yes, but better just use a symbolic link.
Usual redirect won't help if the code checks for physical file presence.

Each site can have own template style in Joomla as usual if each site uses own database tables. User A registered on Site A → User's record is available on Site A or B for login What happens of user B registers on site B or C...? If users are shared ...

There is no demo because it's useless without access to our hosting panel and you just won't see anything in frontend - these will be usual Joomla sites.

It's possible to share VM database data, so you will have same VM on all sites. VM doesn't have multi-store functionality, better check MijoShop.

As usual we don't recommend to upgrade right now, better wait for a week until 3.4.1 is ready :)
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