MGN agentless stalled on "authenticate with service"

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Hi,

I'm testing MGN service with agentless method. I've configured the service in an onpremise VM, discovery runs OK, but when I start a replication, I get stalled at "Failed to authenticate with service".

For what I was able to troubleshoot, I think the problem is that the replication server cannot download the agent from the s3 bucket.

I've configured an s3 interface endpoint on my VPC, is there a way to make MGN use it? editing the vcenter-client.config and adding the proper s3 url endpoint?

Regards,

asked 3 months ago277 views
2 Answers
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A similar problem regarding private endpoints happen with the agent installation:

 [user@host tmp]# python3 aws-replication-installer-init.py --region us-east-2 --aws-access-key-id MY_KEY --aws-secret-access-key MY_SECRET --endpoint MY_MGN_PRIVATE_ENDPOINT_URL --s3-endpoint MY_S3_PRIVATE_ENDPOINT_URL
The installation of the AWS Replication Agent has started.
Downloading of 'https://aws-application-migration-service-us-east-2.s3.us-east-2.amazonaws.com/latest/linux/aws-replication-installer-64bit' from S3 Endpoint MY_S3_PRIVATE_ENDPOINT_URL failed.
This is usually caused by lack of routing to AWS, firewall configuration that block the connection (local or in a firewall appliance) or an incorrect web proxy configuration on this server.
Resolve the connectivity issue and run the installer again.
Learn more about connectivity issues in our documentation at https://docs.aws.amazon.com/mgn/latest/ug/Troubleshooting-Agent-Issues.html#Error-Installation-Failed
Error details: <urlopen error [Errno -2] Name or service not known>

But if I try to download the agent manually using the private endpoint, it works ok:

[user@host tmp]# curl https://aws-application-migration-service-us-east-2.MY_S3_PRIVATE_ENDPOINT/latest/linux/aws-replication-installer-64bit -o latest_installer
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 19.7M  100 19.7M    0     0  1026k      0  0:00:19  0:00:19 --:--:-- 1136k
[user@host tmp]# ls -l latest_installer 
-rw-r--r--. 1 root root 20665936 Aug 26 13:12 latest_installer

Does anyone know what I'm doing wrong??

Regards,

answered 3 months ago
  • How did you fix this errors? I have face this similar error when installing Agent. Can you help me please?? Thank you so much

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For it to work, I had to switch to a public subnet with public IP enabled for the replication instance to work properly. So, I guess there is something that I misconfigured or MGN doesn't work with private endpoints.

answered 3 months ago

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