Problems forwarding ports #24961

fugufish · 2021-02-14T22:22:51Z

fugufish
Feb 14, 2021

I have my workspace to forward a particular port for a persistent tcp connection. It works initially, but as soon as I shut down or restart the server the forwarded port disappears from the forward list (despite it being listed in my .devcontainer) and cannot be re-forwarded reliably. I can re-add the port, but it will choose a random port on my local machine to forward to, ex 2323 → 500123 but this only works if the server is not running. If the server is running before I try to forward the port, it will not allow it to happen

pertinent logs:

after initial server shutdown:

[WorkspaceServices I] onSharingChanged: sourcePort=2323 isTCPServerConnectionEstablished=true hasTLSHandshakePassed=false isPublic=false
[LocalPortForwarder[2323] V] stop: stopping local server port=2323 connections=0
[LocalPortForwarder[2323] V] stop: stopped local server port=2323> object #0: undefined
[WorkspaceServices V] openTunnelForSharedServer: remoteAddress={"host":"localhost","port":2323}
[LiveShareTunnel[2323] I] dispose: Stop sharing port.
[WorkspaceServices V] < serverSharing.stopSharing()
[WorkspaceServices V] > serverSharing.sharingStopped: 
[WorkspaceServices V] > serverSharing.stopSharing() succeeded t:55.0
[ActivityMonitor V] Sending activity heartbeat
[ActivityMonitor V] Sending activity heartbeat
[ActivityMonitor V] Sending activity heartbeat

after this the shared port is permanently removed.

upon restart:

[RemoteResolver V] showCandidatePort: port=25967 host=127.0.0.1 detail="/go/bin/dlv\u0000debug\u0000/home/vscode/workspace/fos/main.go\u0000--headless=true\u0000--listen=127.0.0.1:25967\u0000--api-version=2\u0000--wd=.\u0000--\u0000portal\u0000start\u0000" shouldShow=true
[RemoteResolver I] tunnelFactory: port=25967 host=127.0.0.1 public=false
[WorkspaceServices I] forwardRemotePort: forwarding port=25967 host=127.0.0.1 public=false
[WorkspaceServices V] < serverSharing.getSharedServers()
[WorkspaceServices V] > serverSharing.getSharedServers() succeeded t:54.0
[WorkspaceServices V] < serverSharing.startSharing()
[WorkspaceServices V] > serverSharing.sharingStarted: 
[WorkspaceServices I] checkForSharedServers: sourcePort=25967 isTCPServerConnectionEstablished=false hasTLSHandshakePassed=false isPublic=false
[WorkspaceServices V] openTunnelForSharedServer: remoteAddress={"host":"127.0.0.1","port":25967}
[WorkspaceServices V] > serverSharing.browseSharingStarted: 
[WorkspaceServices V] > serverSharing.startSharing() succeeded t:54.0
[WorkspaceServices V] forwardRemotePort: getOrStartLocalPortForwarder host=127.0.0.1 port=25967
[WorkspaceServices V] getOrCreateLocalPortForwarder: port=25967 isTCPServerConnectionEstablished=false hasTLSHandshakePassed=false isPublic=false isEnumerable=true usePFS=true
[LocalPortForwarder[25967] I] start: sourcePort=25967 localPort=25967 host=127.0.0.1
[WorkspaceServices V] getOrCreateLocalPortForwarder: server started host=127.0.0.1 port=25967 localAddress={"port":25967,"host":"127.0.0.1"}
[RemoteResolver V] showCandidatePort: port=2323 host=0:0:0:0:0:0:0:0 detail="/home/vscode/workspace/fos/__debug_bin\u0000portal\u0000start\u0000" shouldShow=true
[LiveShareTunnel[25967] I] dispose: Stop sharing port.
[LocalPortForwarder[25967] V] stop: stopping local server port=25967 connections=0
[LocalPortForwarder[25967] V] stop: stopped local server port=25967> object #0: undefined
[WorkspaceServices V] < serverSharing.stopSharing()
[WorkspaceServices V] > serverSharing.sharingStopped: 
[WorkspaceServices V] > serverSharing.stopSharing() succeeded t:50.0
[ActivityMonitor V] Sending activity heartbeat

trying to add a port while server is running after server restart

ActivityMonitor V] Sending activity heartbeat
[RemoteResolver V] showCandidatePort: port=2323 host=0:0:0:0:0:0:0:0 detail="/home/vscode/workspace/fos/__debug_bin\u0000portal\u0000start\u0000" shouldShow=true
[ActivityMonitor V] Sending activity heartbeat
[RemoteResolver I] tunnelFactory: port=2323 host=localhost public=false
[WorkspaceServices I] forwardRemotePort: forwarding port=2323 host=localhost public=false
[WorkspaceServices V] < serverSharing.getSharedServers()
[WorkspaceServices V] > serverSharing.getSharedServers() succeeded t:56.0
[WorkspaceServices V] < serverSharing.startSharing()
[ActivityMonitor V] Sending activity heartbeat
[ActivityMonitor V] Sending activity heartbeat
[ActivityMonitor V] Sending activity heartbeat

adding a port thereafter without the server running:

[RemoteResolver I] tunnelFactory: port=2323 host=localhost public=false
[WorkspaceServices I] forwardRemotePort: forwarding port=2323 host=localhost public=false
[WorkspaceServices V] < serverSharing.getSharedServers()
[WorkspaceServices V] > serverSharing.getSharedServers() succeeded t:48.0
[WorkspaceServices V] < serverSharing.startSharing()
[WorkspaceServices V] > serverSharing.sharingStarted: 
[WorkspaceServices I] checkForSharedServers: sourcePort=2323 isTCPServerConnectionEstablished=false hasTLSHandshakePassed=false isPublic=false
[WorkspaceServices V] openTunnelForSharedServer: remoteAddress={"host":"localhost","port":2323}
[WorkspaceServices V] > serverSharing.browseSharingStarted: 
[WorkspaceServices V] > serverSharing.startSharing() succeeded t:58.0
[WorkspaceServices V] forwardRemotePort: getOrStartLocalPortForwarder host=localhost port=2323
[WorkspaceServices V] getOrCreateLocalPortForwarder: port=2323 isTCPServerConnectionEstablished=false hasTLSHandshakePassed=false isPublic=false isEnumerable=true usePFS=true
[LocalPortForwarder[2323] I] start: sourcePort=2323 localPort=50886 host=localhost
[WorkspaceServices V] getOrCreateLocalPortForwarder: server started host=localhost port=2323 localAddress={"port":50886,"host":"127.0.0.1"}
[ActivityMonitor V] Sending activity heartbeat
[ActivityMonitor V] Sending activity heartbeat

Answered by ghost

Feb 24, 2021

Hi, thanks for your feedback.

It works initially, but as soon as I shut down or restart the server the forwarded port disappears from the forward list (despite it being listed in my .devcontainer)

This is a known issue that’s currently being investigated. You can track the progress here.

If the server is running before I try to forward the port, it will not allow it to happen

Also a known issue that sometimes happens, a fixed is planned to rollout in the next codespaces extension release.

View full answer

fugufish · 2021-02-14T22:25:10Z

fugufish
Feb 14, 2021
Author

I actually was able to manually foward 2323 → 2323 after about 5 or 10 minutes, it makes me think that something internal to the extension is holding onto that port and not closing it, preventing it from being recreated until it times out

0 replies

fugufish · 2021-02-24T20:17:34Z

fugufish
Feb 24, 2021
Author

any updates on this this is becoming rather bothersome

0 replies

ghost · 2021-02-24T20:55:33Z

ghost
Feb 24, 2021

Hi, thanks for your feedback.

It works initially, but as soon as I shut down or restart the server the forwarded port disappears from the forward list (despite it being listed in my .devcontainer)

This is a known issue that’s currently being investigated. You can track the progress here.

If the server is running before I try to forward the port, it will not allow it to happen

Also a known issue that sometimes happens, a fixed is planned to rollout in the next codespaces extension release.

0 replies

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

GitHub Community

Problems forwarding ports #24961

{{title}}

Replies: 3 comments

{{title}}

{{title}}

{{title}}

Select a reply

GitHub Community

Problems forwarding ports #24961

fugufish Feb 14, 2021

Replies: 3 comments

fugufish Feb 14, 2021 Author

fugufish Feb 24, 2021 Author

ghost Feb 24, 2021

fugufish
Feb 14, 2021

fugufish
Feb 14, 2021
Author

fugufish
Feb 24, 2021
Author

ghost
Feb 24, 2021