openjdk-based tool behind load balancer/iap not running

[jameslast]

Hello All,

we have a number of vm's running behind https load balancer and IAP.. For the most part that works very good.

Now I have a vm in such a setup that hosts an openjdk-based tool. It will not run at all behind the load balancer,

it runs fine when we log in directly into the vm.

Is this a known issue, is there a soluiton to this?

Many thanks for any help, j.

[a_aleinikov · Accepted solution]

Hi @jameslast ,
This may happen if the OpenJDK-based tool doesn’t handle the headers or connection behavior added by the HTTPS load balancer or IAP.

Things to check:

• Verify the tool supports reverse proxy / load balancer setups.

• Check if it needs special config for X-Forwarded-For, X-Forwarded-Proto, or similar headers.

• Make sure IAP’s authentication isn’t blocking backend access.

• Review firewall rules and backend service health checks.

[jameslast]

Hello,

thans for the reply. I will look in to all of these things to check.

greetings, j.