===================== Statistics (collectd) ===================== :index:`Collectd` is a daemon which collects system performance :index:`statistics` periodically and stores them in RRD files. Statistics will be displayed inside a web interface called Collectd Graph Panel (CGP). After installation, the system will gather following statistics: * CPU usage * system load * number of processes * RAM memory usage * virtual memory (swap) usage * system uptime * disk space usage * disk read and write operations * network interfaces * :index:`network latency` For each check, the web interface will display a graph containing last collected value and also minimum, maximum and average values. CGP is accessible on a random URL generated on first install, something like ``https://myserver.nethserver.org:980/02bf3f8364beea0d5f23044bf14d31d93f63e98d``. The URL is available from the Server Manager inside the :menuselection:`Applications` page. Click the :guilabel:`Open` button of :guilabel:`Collectd Charts` application. From the old Server Manager, the web interface can be accessed using the :guilabel:`Graphs` section. Network latency =============== The :index:`ping` plugin measure the network latency. At regular intervals, it sends a ping to the configured upstream DNS. If the multi WAN module is configured, any enabled provider is also checked. Additional hosts could be monitored (i.e. a web server) using a comma separated list of hosts inside the ``PingHosts`` property. Example: :: config setprop collectd PingHosts www.google.com,www.nethserver.org signal-event nethserver-collectd-update .. _cgp_restict_access-section: