# Problem in proxing 3rd docker proxy using nexus

**URL:** https://community.sonatype.com/t/problem-in-proxing-3rd-docker-proxy-using-nexus/7908
**Category:** Sonatype Nexus Repository
**Created:** [December 20, 2021, 11:56am UTC](https://community.sonatype.com/t/problem-in-proxing-3rd-docker-proxy-using-nexus/7908 "2021-12-20T11:56:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![alireza0101sadeghpour](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@alireza0101sadeghpour](https://community.sonatype.com/u/alireza0101sadeghpour)
#### Post date: [December 20, 2021, 11:56am UTC](https://community.sonatype.com/t/problem-in-proxing-3rd-docker-proxy-using-nexus/7908/1 "2021-12-20T11:56:47Z")

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Hi,  
I am trying to proxy a 3rd docker repository ([https://m.docker-registry.ir](https://m.docker-registry.ir) instead of [https://registry-1.docker.io](https://registry-1.docker.io)) using the nexus repo manager. the problem is when I try to use “docker pull nexus\_server:port/nginx/nginx” to pull the image, I get " Error response from daemon: manifest for 192.168.86.44:8185/nginx/nginx:latest not found: manifest unknown: manifest unknown" message and the following message in the nexus log.  
“2021-12-20 15:21:05,508+0330 WARN [qtp560412956-8662] admin org.sonatype.nexus.repository.docker.internal.V2Handlers - Error: HEAD /v2/nginx/nginx/manifests/latest  
java.lang.IllegalArgumentException: Digest must be formed as ‘alg:hex’: 13af0f-3573-61be3fd7”  
But I can easily pull the image with the " docker pull m.docker-registry.ir/nginx/nginx" command. Could anyone give me an advice to solve the problem?