====== Install Joomla centrally or on multiple users ======

The ** Apache ** web server is already installed on our //lserver// virtual machine among other services, without any content yet.

**Joomla** CMS is among the most popular for site creation, and we can easily install its latest version through LServerAdmin application.

**Mass Joomla installation** for multiple users **saves us a lot of time**, as database preparation per user, manual installation and setup would require, e.g. for 20 users, **several hours**. With **LServerAdmin** application it will take no more than 1 minute per user and everything will be done automatically.

===== Joomla installation =====

We have 2 possible installations of Joomla
  - To serve as **a main site** for the lab or school needs.
    * The main site can be accessed from our internal network as **http://lserver** and through Internet from our public Internet ip e.g **http://myinternetaddress.com**
  - To serve as **a personal site** for multiple users e.g. of a class division, for the needs of a lesson.
    * Τhe sites can be accessed from our internal network as **http://lserver/~username** ((the user name of the corresponding user)) and through Internet from our public Internet ip e.g. **http://myinternetaddress.com/~username**

To install Joomal we do the following
  - [[en:quickstart:startlserveradmin|We start LServerAdmin application]]
  - From main menu we select **Services / Other Services - Applications / Apache - Web Server**
  - We go to **Configure / Site Administration / Install**
  - We select the Joomla version we want to install.
  - We select the kind of site we want as we described above
    - If we want central Joomla installation we select **Main site**
      - We select the **main site administrator** from the **Teachers** group.
      - We select the Joomla installation folder. Folder **/mnt/data/public_html** contents are shown on our local network in address **http://lserver**. If we create a subfolder named **joomla** inside, the site will be shown as **http://lserver/joomla**
      - On the **database name** field we can leave the default one or change it if we want.
    - If we want multiple users installation, we select **Personal site**
      - **We select the users** to whom we will install personal sites e.g. all users of a class division.
      - Installation is done inside each user's personal folder **public_html/www**. We leave the default folder **joomla** or change its name. The site will show on our internal network on address **http://lserver/~username/joomla** to allow the student to learn Joomla on his personal site. We can also install **2nd site on the same user** on a different folder.
      - On the **database name** field we can change the last part after the **username_** prefix. We leave it as **joomla** or change it e.g. to //project// if the installation folder is also //project//.
  - We can see **a summary of our configuration** on the next dialog and press **Yes** to proceed with the Joomla installation.
  - Last version of Joomla will be **downloaded and installed**.

===== Connect to Joomla =====

  - On Site Administration menu we go to **Site list** to view all existing Joomla installations. 
  - **Main site** : 
    * If our site is on **http://lserver**, administration is on **http://lserver/administrator**. We connect we the administrator user we have selected during the setup of this site using his account password.
  - **Personal site**
    * If our site is on **http://lserver/~username**, administration is on **http://lserver/~username/administrator**. We connect with user account **username** using his account password.

All sites can be accessed also through the Internet from our public ip e.g. **http://myinternetaddress.com/~username/joomla**, so we and our students can work **also from home**.

===== Uninstall Joomla =====

We can uninstall multiple Joomla installations from menu **Uninstall**. All files and corresponding databases will be removed.

Personal Joomla installations with their corresponding databases are also automatically deleted in case the user [[http://www.lserveradmin.gr/help/html_en/manual/user_administration/userdelete.html|is deleted]].


===== Add Users =====

A teacher may need to login to a student's Joomla site to do some configurations or actions. If we are a teacher, we can add ourself to a student's Joomla site as follows.

  - From menu **Edit** we select **Add users**
  - We select the **site** we want to add the user
  - We select the user to add
  - We select the **permission's group** e.g. //Super Users// for full administrative permissions.

With a similar way we can add e.g. on the main site the students of a class division or even all students with restricted permissions e.g. //Registered//. This would be useful for example if we add a forum to our main site.