UDP Port Monitor - Troubleshooting
How do we monitor UDP Port?
- UDP is a connectionless protocol which doesn't send any acknowledgement on connecting to the UDP port like TCP.
- When UDP port is not open system will send ICMP port unreachable message. The Issue is when the UDP port is blocked by a firewall system will not send ICMP port unreachable message. So we cannot use this method directly for checking port availability which will lead to an incorrect availability report.
- To overcome above issue we need to send a command to the Service and expect the response back within the given timeout period with which we can confirm the UDP port availability.
- Note - Command varies based on the Application Service monitored
Not able to add UDP Port Monitor
- Check if the service you tend to monitor is up and accessible from the server where Applications Manager is installed.
- Make sure that the service returns response for the command provided within the given timeout period.
- When there is no response from the server, try increasing timeout value and check.
- To check the response from the Service search for below lines in stdout.txt file
- resourceId :: UDPPortDataCollector :: doDataCollection() :: Response from the server
UDP Port Monitor can not monitor TCP ports. Make sure that the port provided is an UDP port.
Only UDP services with command can be monitored in UDP port monitor. For monitoring other UDP services make use of the Script Monitor.
New to ADSelfService Plus?
Related Articles
Real User Monitor (RUM) - Troubleshooting
If the monitor has not polled data for a long time, follow the steps below for troubleshooting: Step 1: Check the RUM Agent configuration Real User Monitor requires the RUM Agent to be installed and mapped to the Applications Manager. Refer the help ...Mail Server Monitor - Troubleshooting
Common Mail Server Monitor Errors and Troubleshooting Guide 1. Unknown Host Error Description: This error occurs when the mail client cannot resolve the hostname of the mail server to an IP address. The issue typically arises from DNS resolution ...Troubleshooting URL Monitor
Here are few of the common errors you may come across in URL monitor, we have mentioned the steps you can follow to troubleshoot them. General troubleshooting for URL monitor Ensure that the URL is accessible from the server in which Applications ...DNS Monitor - Troubleshooting
Common DNS Monitor Errors and Troubleshooting Guide 1. Host Not Found Description: The DNS server was unable to locate the requested lookup address. Possible Causes: This may happen if the hostname is incorrect, the domain does not exist, or there is ...PHP Monitor Troubleshooting
PHP Monitor Errors and Troubleshooting Guide Check if the phpstats.php file in the webserver's document root. Ensure there is no modifications done in phpstats.php file Check if the correct PHP path is given. Retry with the "SSL is enabled" option ...