G-Technology G-RACK 12, User Manual, Page: 173 / 296

Use Cases/Tutorials
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HTTP, 443 for HTTPS), by interval (1024-65535) or by names (SMTP, HTTP, FTP). You can also use ‘!’
to reverse the meaning of the value (e.g. !443 means all ports except 443).
9. If you wish, you can add some comments to the rule.
You can also specify additional parameters to the rule in the field ‘advanced options’. Configuration
of that options is beyond this manual. Please refer to the Linux nftables manual for additional info.
You can edit or delete a firewall rule by selecting the rule and clicking the appropriate button.
How to run arbitrary commands on a scheduled basis.
There are many times when you want a command to be executed on a schedule. The G-RACK 12 has
a built-in CRON function that allows you to set a schedule for commands to run on the server.
1. Click on System>Scheduled Jobs.
2. Click the plus (+).
3. Enable it.
4. Select the time and parameters that fit your needs.
5. Press Save.
6. If you need you can manually execute the job by pressing the Run button.
7. You can edit or delete a command by using the Edit or Delete buttons.
How to allow access your G-RACK 12 via SSH without password (authentication by a
certificate).
Skilled Linux system administrators can access the NAS OS by using SSH terminal tools. This method
of access is not recommended as this level of access can easily corrupt the OS and make the unit
inoperable. In order to enable this method of access you must follow these steps:
1. Click on Connect>SSH.
2. Enable SSH.
3. Choose the port number. Port 22 is the standard port.
4. Enable SSH tunneling if desired.
5. Enable it.
How to perform automatic synchronizing of the user data to G-RACK 12. Configuring RSync
jobs.
RSync is used to backup data. RSync will allow the admin to choose a “source” folder and sync it
to the chosen “destination”. RSync can be used locally on the G-RACK 12 server or remotely to a
different system or another G-RACK 12.
How to setup a Local RSync job
To setup a local RSync job to copy an existing workspace to a new destination on the GRack: