# Access to the docker registry using none standard port fails - port value is duplicated

**URL:** <https://community.sonatype.com/t/access-to-the-docker-registry-using-none-standard-port-fails-port-value-is-duplicated/14398>\
**Category:** Sonatype Nexus Repository\
**Tags:** docker\
**Created:** [February 14, 2025, 9:27pm UTC](https://community.sonatype.com/t/access-to-the-docker-registry-using-none-standard-port-fails-port-value-is-duplicated/14398 "2025-02-14T21:27:38Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![Piotr\_Kania\_erbruce](https://avatars.discourse-cdn.com/v4/letter/p/c2a13f/32.png) [@Piotr\_Kania\_erbruce](https://community.sonatype.com/u/Piotr_Kania_erbruce)\
**Post date:** [February 14, 2025, 9:27pm UTC](https://community.sonatype.com/t/access-to-the-docker-registry-using-none-standard-port-fails-port-value-is-duplicated/14398/1 "2025-02-14T21:27:39Z")

</div>

I have just updated my Nexus community edition from version nexus-3.76.1-01 to nexus-3.77.1-01 to the latest nexus-3.77.1-01 version.

However, it stopped to pull docker images.

In the Release Notes for version 3.77.1 you mention solved issue - Fix for X-Forwarded-Port Header. It seems my problem could be related to this issue.

Please see the details below:

I try to pull docker image from registry kruk.smlab.company.lan:5000

john@workstation:~/workspace/projectX$ docker -D pull kruk.smlab.company.lan:5000/smacs/smacs-rest-tester:john  
time=“2025-02-14T20:04:18+01:00” level=debug msg=“otel error” error=“1 errors occurred detecting resource:\n\t\* conflicting Schema URL: [https://opentelemetry.io/schemas/1.21.0](https://opentelemetry.io/schemas/1.21.0) and [https://opentelemetry.io/schemas/1.26.0](https://opentelemetry.io/schemas/1.26.0)”  
Error response from daemon: Head “[https://kruk.smlab.company.lan:5000/v2/smacs/smacs-rest-tester/manifests/john](https://kruk.smlab.company.lan:5000/v2/smacs/smacs-rest-tester/manifests/john)”: Get “https://kruk.smlab.company.lan:5000:5000/v2/token?account=docker&scope=repository%3Asmacs%2Fsmacs-rest-tester%3Apull&service=https%3A%2F%2Fkruk.smlab.company.lan%3A5000%3A5000%2Fv2%2Ftoken”: dial tcp: lookup kruk.smlab.company.lan:5000: no such host

I see the error response from daemon has url with port value 5000 repeated twice:

https://kruk.smlab.company.lan:5000:5000/v2/token?account=docker&scope=repository%3Asmacs%2Fsmacs-rest-tester%3Apull&service=https%3A%2F%2Fkruk.smlab.company.lan%3A5000%3A5000%2Fv2%2Ftoken

If I access the same image using different address (served by the same Nexus docker registry) it works as expected:

john@workstation:~/workspace/projectX$ docker -D pull registry.smlab.company.lan/smacs/smacs-rest-tester:john  
time=“2025-02-14T20:04:32+01:00” level=debug msg=“otel error” error=“1 errors occurred detecting resource:\n\t\* conflicting Schema URL: [https://opentelemetry.io/schemas/1.21.0](https://opentelemetry.io/schemas/1.21.0) and [https://opentelemetry.io/schemas/1.26.0](https://opentelemetry.io/schemas/1.26.0)”  
john: Pulling from smacs/smacs-rest-tester  
fde3ad1312f5: Already exists  
87c07acb71ed: Already exists  
eb35fbab639f: Already exists  
ba05345e1c24: Already exists  
10b0ed86e1d1: Already exists  
b44fb4ee23a4: Already exists  
5fa4be880304: Already exists  
3ab53249d2d9: Already exists  
91fbc7769198: Already exists  
8198611b0a11: Already exists  
3adc1dbb5532: Already exists  
21f5369f933b: Already exists  
4e42ce82fed8: Already exists  
dcd94efaf937: Pull complete  
bd7ca923b0e0: Pull complete  
997df891d746: Pull complete  
9a4bcc0e1e79: Pull complete  
08297bb590f0: Pull complete  
458051e2cf65: Pull complete  
18e7a69457a8: Pull complete  
53ea6864c54d: Pull complete  
de4a9f14dba3: Pull complete  
28a483d34103: Pull complete  
45e7acf4984b: Pull complete  
5807827889d0: Pull complete  
f6ddc723de4c: Pull complete  
abca190dea90: Pull complete  
81ffe33647b1: Pull complete  
315465ac71a9: Pull complete  
e0861ba652c9: Pull complete  
a53083c78254: Pull complete  
6f2387b6f9b0: Pull complete  
Digest: sha256:2799ab7b4c2c568eab4dbbfceb8dac81866c06b00c3366f7cf599b3af1818c17  
Status: Downloaded newer image for registry.smlab.company.lan/smacs/smacs-rest-tester:john  
registry.smlab.company.lan/smacs/smacs-rest-tester:john

Access to manifests also works fine:

john@workstation:~/workspace/projectX$curl --write-out ‘%{http\_code}’ --silent --output /dev/null [https://kruk.smlab.company.lan:5000/v2/smacs/smacs-rest-tester/manifests/john](https://kruk.smlab.company.lan:5000/v2/smacs/smacs-rest-tester/manifests/john)  
200

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_[View the full topic](https://community.sonatype.com/t/access-to-the-docker-registry-using-none-standard-port-fails-port-value-is-duplicated/14398)._