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AppDynamics Team (Retired)

What is causing an"unable to identify hostname" error during Java Agent installation?


Table of Contents



Java Agent installation is not working for Windows. Telnet connects with the Controller, but gives an "unable to identify hostname" error


Diagnosis and Troubleshooting

  1. Confirm that you set <controller-host> in '<agent_home>/verx.x.x.x.x/conf/controller-info.xml'.

  2. Also set the property such as <application-name>, <tier-name> and <node-name> which is described as "Required:Yes" in the Agent Controller Communication Properties documentation.

  3. If you use a proxy, please set the information in your system property as shown in Java Agent Configuration Properties, Proxy Properties for the Controller documentation.

  4. Share the result of the command "nslookup <YOUR HOST NAME HERE>" in order to confirm that name resolution is working correctly.


    Server: UnKnown

    Addresses: xx.xx.xx.x



Still having a problem?

If the issue persists, copy a few lines of the log file showing errors and contact AppDynamics Support.


Additional References

Version history
Last update:
‎05-21-2021 05:44 PM
Updated by: