Sending passive checks to the Nagios NSCA add-on from JAVA Application - nagios

Question

I've implemented JSend NSCA to send passive checks to Nagios like below:
public static void main(String[] args) {
NagiosSettings nagiosSettings = new NagiosSettingsBuilder()
.withNagiosHost("192.168.1.20")
.withPassword("nagiosadmin")
.withPort(5666)
.withConnectionTimeout(5000)
.withResponseTimeout(15000)
.create();
NagiosPassiveCheckSender sender = new NagiosPassiveCheckSender(
nagiosSettings);
MessagePayload payload = new MessagePayloadBuilder()
.withHostname("localhost")
.withLevel(Level.CRITICAL)
.withServiceName("Test Service Name")
.withMessage("Test Message")
.create();
try {
sender.send(payload);
} catch (NagiosException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
But I had the following errors:
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:432)
at java.net.Socket.connect(Socket.java:529)
at com.googlecode.jsendnsca.core.NagiosPassiveCheckSender.send(NagiosPassiveCheckSender.java:69)
at app.QuickStart.main(QuickStart.java:29)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Nagios Username and password are: nagiosadmin/nagiosadmin.
The IPserver for nagios is 192.168.1.20.
Thank you.

Answer 1

Can you try a quick telnet test
From your command line run
telnet 192.168.1.20 5666
If the response is
Connecting To 192.168.1.20...Could not open connection to the host, on port 5666: Connect failed
Then the NSCA daemon is either
not running
running on a different port other than 5666
BTW, Im the project lead for jsendnsca. In future, you can post questions like this at
https://code.google.com/p/jsendnsca/issues/list
and create an issue