Netdata⚓︎
What is Netdata⚓︎
Netdata is a system for distributed real-time performance and health monitoring. It provides unparalleled insights, in real-time, of everything happening on the system it runs (including applications such as web and database servers), using modern interactive web dashboards.
Warning
Netdata is not available on Turris Shield.
How it looks:
Tip
Here is also a live demo.
Installation of Netdata⚓︎
Installation via reForis⚓︎
Check the Netdata package at the Packages page and then press Save. Netdata will be installed in the same way as other packages.
Installation via CLI⚓︎
In CLI via SSH you can run the following commands. The first of them will update the list of available packages and the second one will install netdata onto your router.
opkg update
opkg install netdata
Tip
Netdata can be also installed via LuCI.
Running netdata⚓︎
Netdata is enabled to be started automatically on boot. It can be stopped by this command:
/etc/init.d/netdata stop
And if you want to start it again you can use this command:
/etc/init.d/netdata start
Access control⚓︎
Due to security reasons, access to Netdata is limited to localhost (the router itself) by default. It means that you need to modify the configuration file (/etc/netdata/netdata.conf) to allow access from other computers.
Access control in Netdata is managed by the web section. The default values are the following:
[web]
allow connections from = localhost
allow dashboard from = localhost
To enable access to the dashboard, you need to modify it (this example assumes that your LAN uses 192.168.1.0/24 as its address range):
[web]
allow connections from = localhost 192.168.1.*
allow dashboard from = localhost 192.168.1.*
The first parameter limits general access to Netdata. Only addresses specified here are allowed to communicate at all. The second parameter allows access to the dashboard. There are much more configuration parameters – see the Netdata documentation.
Tip
You can specify more addresses separated by spaces. Both exact addresses and wildcards (see the example above) are permitted here.
After all changes in the configuration, Netdata has to be forced to reload it:
/etc/init.d/netdata reload
When done, you can see the Netdata dashboard on http://192.168.1.1:19999.
(That’s the default local IP address of your router. If you have changed it, adapt the IP in your URL.)
Removing Netdata⚓︎
If you wish to uninstall Netdata, simply uncheck the checkbox which you can see above and press Save. In the command line interface, you can use the following command:
opkg remove netdata
Do you know how to improve Netdata? Share your ideas on their GitHub. They use it also as a forum, which is very unique on GitHub. If you don’t want to create an issue or share your feedback publicly, you can contact the developer of Netdata (ktsaou) by a private message on our forum.
Somebody has already created a thread on the forum for sharing thoughts between users, who owns Turris and use Netdata: Monitoring Omnia with Netdata.