Network Error When Using Avocent KVM

[j-p-burdell]

Hi. Thank you so much for creating this solution!

I'm utilizing an Avocent av3008 IP KVM and can make it through all the "verification" prompts, but then get a "Network connect error" when it attempts to connect to the end device (see below).

I get the same connect error whether I open the jnlp file via browser or invoke it from the command line via javaws. Only two messages I visibly see when utilizing the command line, are "This application does not specify a Codebase in its manifest" and "Application title was not found in manifest".

Hoping you can assist with resolving this issue and please let me know what additional info/data/logs might be needed. Thank you!

[solarkennedy]

Haha. Who knows man :)

The network connect error, can you curl that https url in the error message? (it's probably the same url you are visiting)

I would bet it is https cert validation failure.

Maybe there is a way to invoke the java app without the webstart stuff?
That might make the real error more obvious.

Maybe try having a conversation about it with ChatGPT?

[j-p-burdell]

lol :)

As you suspected, am not able to curl the http link, but can successfully curl it via https. Also, I'm a n00b when it comes to Java... what command would I run to invoke the java app without webstart?

Also, trying to find a solution on ChatGPT as well. Thank you!

[PecceG2]

I ran into this problem, and it seems to be an incompatibility issue between IcedTea-Web and the Avocent/Dell JNLP.
The solution I found so far: replace IcedTea's javaws with the original Oracle Web Start; in short, download the Java 7 JDK from Oracle's official website (you need the x64 .tar.gz version), extract it, and copy the javaws binary to /usr/bin.
With that, the KVM works with this Docker container.

For now, unfortunately, I don’t have more time to dedicate to it, but it’s probably possible to get it running with OpenJDK with some modifications (or provide a Docker image with these changes).

[Jeff-liaojinfu]

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