Firewall and Logs

YunoHost enables an internal firewall during installation, which you can conveniently control using sliders. You can access the configuration in Tools | Firewall. The ports listed for IPv4 and IPv6 can be opened or blocked using a green slider (Figure 4). The Operations table further down the page also lets you define your own firewall rules. You can save the changes by pressing the button of the same name.

Figure 4: The integrated firewall lets you define the ports you want to allow or block.

If problems occur, or applications do not work correctly, it is best to take a look at the system logs, which you can access via Tools | Logs. A click on one of the entries opens a sub-window that lists the detailed log entries, with color highlighting in part. This makes it far easier to keep track of extensive logs.

Services

To install the desired services, click Applications in the web GUI. In the next window, you will first see an empty interface with a note that no apps have been set up as yet. After selecting Install, YunoHost shows you the catalog of installable applications sorted by groups. In it you will find all installable server services arranged in tiles. Above the catalog there are two search lines. The upper line is for free text input; you can enter the name of the application you are looking for here. A click on the magnifying glass symbol to the left shows you the matches.

But if you want to select an application from a particular category of services, then click on one of the two triangles on the right side of the second search line. A list of categories appears, and you can select a group. After doing so, the tile view changes, showing only tiles from the selected application category (Figure 5). If additional subcategories exist, then the server displays them in a horizontal buttonbar below the search lines.

Figure 5: The web GUI displays installable applications in a tile view.

Once you have found the app you want, click Install in its tile bottom right. After doing so, YunoHost will display another page with information about the application and installation parameters. You can use the page to make changes, if necessary, name a path, and then start the installation by pressing Install.

During the setup, the routine also takes dependent packages into account; a progress bar shows the progress. When the process is complete, you will find the newly set up application in Applications (Figure 6).

Figure 6: The page lists new applications one below the other.

Data Backup

If you have many services installed and numerous users, it only makes sense to back up the entire system on a regular basis. Clicking Backup will take you to a view that lists all the backup locations one below the other. Clicking the arrow to the right of it opens the actual backup window, which lists all backups.

Start a backup via New backup top right in the window. The following view lets you define what you want to save. YunoHost distinguishes between the system and the installed applications. You can check or uncheck the boxes to register or deregister the individual components for backup. For each group, all components can also be selected using Select all or excluded from the backup using Select none.

When done, press Create a backup bottom right. The software will now start the backup; a progress bar lets you keep track of its progress. After completing the backup, the module creates a table entry in the Backup window, where the name of the associated tar archive consists of the backup date. Clicking on the open arrow to the right of the entry displays information on the respective backup point. You can find information on the path, the backed up components, and the scope of the backup (Figure 7). Pressing Download saves the backup on the local computer.

Figure 7: Backups can also be conveniently created in YunoHost with just a few mouse clicks.

To restore an archive, click on Restore bottom right. By checking or unchecking the boxes to the right of the individual components, you can include or exclude each of them from the data restore. After that, the actual recovery takes place.