NNTP probe is used to make a connection to the NNTP server and then it receives the response from NNTP server and sends the QUIT command to terminate the connection. The connection status is saved in the property nntpstatus and the response in the property nntprespmsg.
In our sample, we probe a NNTP server, which typically listens to port 119 (the default port for NNTP). We send an email alert if the NNTP probe cannot connect successfully to the NNTP server.
Because this sample is so close to the previous ones, we do not create a new rule set specifically for email alerting. Please view "Ping Probe" for it. It might be clever to rename the rule set in such a case. For simplicity reasons, we have not done this here.
Therefore, we begin by creating the new service, done by right-clicking "Services":
Monitoring NNTP server via a NNTP Probe - Figure 1
After doing so, select the newly created service in the tree view to look at its properties. Be sure to bind it to the "NNTP Probe" rule set as seen below:
Monitoring NNTP server via a NNTP Probe - Figure 2
Save the configuration and restart the service. From now on, the following mail alert is generated when the port cannot be connected to:
NNTPProbe status="fail" target="192.168.1.1" port="143" netstate="10061" message="Couldn't connect to host"