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[GH-ISSUE #1745] Duplicate proxy-port prevents creating TCP + UDP resources on same port #32063

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opened 2026-06-15 09:18:03 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-06-15 09:18:03 -05:00
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Originally created by @AndrewPaglusch on GitHub (Oct 26, 2025).
Original GitHub issue: https://github.com/fosrl/pangolin/issues/1745

Describe the Bug

I'm not sure if this bug report belongs in the Pangolin repo, or the Newt one. I'm adding it here, but I can re-submit under Newt if that'd be better.

Adding the following TCP proxy-resource to a container works correctly.

- pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP)
- pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp
- pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170

But when I try to add a UDP proxy-resource with the same port-number:

- pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP)
- pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp
- pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170

- pangolin.proxy-resources.traccar-freematics-udp.name=Traccar Freematcis (UDP)
- pangolin.proxy-resources.traccar-freematics-udp.protocol=udp
- pangolin.proxy-resources.traccar-freematics-udp.proxy-port=5170
- pangolin.proxy-resources.traccar-freematics-udp.targets[0].hostname=traccar
- pangolin.proxy-resources.traccar-freematics-udp.targets[0].port=5170

I get the following error in the Newt logs:

WARN: 2025/10/26 07:36:05 Blueprint application failed: Failed to update database from config: Error: Validation error: Duplicate 'proxy-port' values found in proxy-resources: port 5170 used by proxy-resources: traccar-freematics-tcp, traccar-freematics-udp at "proxy-resources"

In the Pangolin UI, I can make a UDP and TCP resource with the same port, so making this via a Blueprint seems to use improper validation.

Environment

  • OS Type & Version: AlmaLinux 9.6
  • Pangolin Version: 1.11.1 (Community)
  • Gerbil Version: 1.2.2
  • Traefik Version: 3.4.0
  • Newt Version: 1.5.2
  • Olm Version: N/A

To Reproduce

Try to add the following Blueprints to a container. A TCP port and UDP port that are the same port number

- pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP)
- pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp
- pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar
- pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170

- pangolin.proxy-resources.traccar-freematics-udp.name=Traccar Freematcis (UDP)
- pangolin.proxy-resources.traccar-freematics-udp.protocol=udp
- pangolin.proxy-resources.traccar-freematics-udp.proxy-port=5170
- pangolin.proxy-resources.traccar-freematics-udp.targets[0].hostname=traccar
- pangolin.proxy-resources.traccar-freematics-udp.targets[0].port=5170

Expected Behavior

A TCP resource and UDP resource should be created, each with the same port number

Originally created by @AndrewPaglusch on GitHub (Oct 26, 2025). Original GitHub issue: https://github.com/fosrl/pangolin/issues/1745 ### Describe the Bug I'm not sure if this bug report belongs in the Pangolin repo, or the Newt one. I'm adding it here, but I can re-submit under Newt if that'd be better. Adding the following TCP `proxy-resource` to a container works correctly. ``` - pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP) - pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp - pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170 - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170 ``` But when I try to add a UDP `proxy-resource` with the same `port-number`: ``` - pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP) - pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp - pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170 - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170 - pangolin.proxy-resources.traccar-freematics-udp.name=Traccar Freematcis (UDP) - pangolin.proxy-resources.traccar-freematics-udp.protocol=udp - pangolin.proxy-resources.traccar-freematics-udp.proxy-port=5170 - pangolin.proxy-resources.traccar-freematics-udp.targets[0].hostname=traccar - pangolin.proxy-resources.traccar-freematics-udp.targets[0].port=5170 ``` I get the following error in the Newt logs: ``` WARN: 2025/10/26 07:36:05 Blueprint application failed: Failed to update database from config: Error: Validation error: Duplicate 'proxy-port' values found in proxy-resources: port 5170 used by proxy-resources: traccar-freematics-tcp, traccar-freematics-udp at "proxy-resources" ``` In the Pangolin UI, I can make a UDP and TCP resource with the same port, so making this via a Blueprint seems to use improper validation. ### Environment - OS Type & Version: AlmaLinux 9.6 - Pangolin Version: 1.11.1 (Community) - Gerbil Version: 1.2.2 - Traefik Version: 3.4.0 - Newt Version: 1.5.2 - Olm Version: N/A ### To Reproduce Try to add the following Blueprints to a container. A TCP port and UDP port that are the same port number ``` - pangolin.proxy-resources.traccar-freematics-tcp.name=Traccar Freematcis (TCP) - pangolin.proxy-resources.traccar-freematics-tcp.protocol=tcp - pangolin.proxy-resources.traccar-freematics-tcp.proxy-port=5170 - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].hostname=traccar - pangolin.proxy-resources.traccar-freematics-tcp.targets[0].port=5170 - pangolin.proxy-resources.traccar-freematics-udp.name=Traccar Freematcis (UDP) - pangolin.proxy-resources.traccar-freematics-udp.protocol=udp - pangolin.proxy-resources.traccar-freematics-udp.proxy-port=5170 - pangolin.proxy-resources.traccar-freematics-udp.targets[0].hostname=traccar - pangolin.proxy-resources.traccar-freematics-udp.targets[0].port=5170 ``` ### Expected Behavior A TCP resource and UDP resource should be created, each with the same port number
GiteaMirror added the bug label 2026-06-15 09:18:03 -05:00
GiteaMirror commented 2026-06-15 09:18:05 -05:00
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@AndrewPaglusch commented on GitHub (Oct 26, 2025):

I just discovered that when this issue is encountered, all other Blueprints seem to be skipped over. Newt gives up on parsing blueprints entirely if it encounters this problem.

<!-- gh-comment-id:3448896166 --> @AndrewPaglusch commented on GitHub (Oct 26, 2025): I just discovered that when this issue is encountered, all other Blueprints seem to be skipped over. Newt gives up on parsing blueprints entirely if it encounters this problem.
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Reference: github-starred/pangolin#32063
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