I'm trying install a jenkins agent on my internal windows server 2022 through websocket, but I'm getting the following error
C:\Users\Administrator>C:\jenkins\jdk-11.0.15+10\bin\java.exe -jar "C:\jenkins\agent.jar" -jnlpUrl http://myjenkins.internal.myorg:8080/computer/awswinagent1/jenkins-agent.jnlp -secret 123456789101112131415 -workDir "C:\jenkins" May 27, 2022 1:28:22 PM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir INFO: Using C:\jenkins\remoting as a remoting work directory May 27, 2022 1:28:22 PM org.jenkinsci.remoting.engine.WorkDirManager setupLogging INFO: Both error and output logs will be printed to C:\jenkins\remoting May 27, 2022 1:28:22 PM hudson.remoting.jnlp.Main createEngine INFO: Setting up agent: awswinagent1 May 27, 2022 1:28:22 PM hudson.remoting.jnlp.Main$CuiListener <init> INFO: Jenkins agent is running in headless mode. May 27, 2022 1:28:22 PM hudson.remoting.Engine startEngine INFO: Using Remoting version: 4.13 May 27, 2022 1:28:23 PM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir INFO: Using C:\jenkins\remoting as a remoting work directory May 27, 2022 1:28:24 PM hudson.remoting.jnlp.Main$CuiListener error SEVERE: Handshake error. io.jenkins.remoting.shaded.javax.websocket.DeploymentException: Handshake error. at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$3$1.run(ClientManager.java:658) at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$3.run(ClientManager.java:696) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$SameThreadExecutorService.execute(ClientManager.java:849) at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118) at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager.connectToServer(ClientManager.java:493) at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager.connectToServer(ClientManager.java:337) at hudson.remoting.Engine.runWebSocket(Engine.java:656) at hudson.remoting.Engine.run(Engine.java:495) Caused by: io.jenkins.remoting.shaded.org.glassfish.tyrus.core.HandshakeException: Response code was not 101: 403. at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.TyrusClientEngine.processResponse(TyrusClientEngine.java:299) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.ClientFilter.processRead(ClientFilter.java:167) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:111) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:113) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.SslFilter.handleRead(SslFilter.java:384) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.SslFilter.processRead(SslFilter.java:347) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:111) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:113) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.TransportFilter$4.completed(TransportFilter.java:294) at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.TransportFilter$4.completed(TransportFilter.java:278) at java.base/sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:127) at java.base/sun.nio.ch.Invoker$2.run(Invoker.java:219) at java.base/sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829)
my Jenkins controller is beyond an internal AWS Application Load Balancer with 8080 port listener and with HTTP protocol (not HTTPS)
note: I have additional AWS Application Load Balancer with 443 port listener and with HTTPS protocol, and I can connect jenkins agent without any issue
my default Jenkins url is: myjenkins.myorg.com (and not myjenkins.internal.myorg like above), so am I getting 403 because of CORS or any other security policy?
Any idea how can I solve this?