I have read some posts in pre-sale category and even had an entry before but still some more questions.

1- If Php is shared and each salve site has independent DB, does it mean that Article categories can be different in each site? Maybe taking off one category and adding another category?

Same question about components, say Events extension has category for events, Should exact same categories be present in all sites or there are flexibilities?

2- Is it possible to have master site in English and slave in French or even Arabic which is LTR?

3- Final question is about some security extensions which are installed in server level such as

extensions.joomla.org/extensions/access-...site-protection/8384

Which one should be installed first, JMS or those such as above?

Thank you.

1) Yes by default, each website have their own content as soon as they have their own DB or at least a different table prefix.

Concerning the extentsion, they must be installed on the master before to be installed in a slave site because the PHP code of the extensions must be present.
The slave site can not install an extension that is not already installed in the master. In addition, they must use the same version number as they share the same php code.

2) Yes you can setup each website with their own language.
Again, the master must have all the lanugages installed before they can be used in a slave site.

3) I don't know this extension and never received it for review.
So I don't know in which order you have to install them but as it seems that this extension perform a signature verification, it is recommended that you install JMS before it and that you install the JMS patches before this extension as the signature will be modified.

Hi Edwin,

Thank you for clarification, just quick one, do you have experience with Admin Tools
www.akeebabackup.com/products/admin-tools.html

the subscription version with security tools, should this be installed before JMS multi site?

I also want to ask about a comment you had in another forum about putting the all php in a remote and accessible server for security, could you please clarify this? If this is the case then the only security issue would be DBs?

Thank you.

Adding to this, consider I have a master site and ten slave sites however any attempt to access the master site is redirected to one of the slave sites (no one can access the master site). Can this be a way of securing the websites or still the master site can be hacked through slave sites?

I am not familiar with Akeeba Admin Tool but in general, you do install the extension in any order.
Just verify after installing something that JMS does not require additional patches.

Concerning the security question, please provide the link to the post because I don't see what you make reference.

The thing that you must understand is that the PHP code is only present in the master website as long as you use the Symbolic Link in the slave sites to point on the master.
If you decided to make a copy, you will have another instance of Joomla but becarefull that JMS does not provide synchronization. Once you use a copy, you need to update and maintain this instance yourself.

Any website that have security vulnerabilities may give access to the DB and/or the files and folder on the disk depending on the hack.
So if the hacker access your server in general he can do whatever he wants.

The fact that you have the PHP code once or as many times as you have website will not change the fact that the hacker is enter in your server and that he can access it.