Duplicati failed to connect Amazone s3

[Sinsha]

Hi,

I got below error while configuring connection Amazone s3:

Failed to connect: Invalid type System.Net.HttpWebRequest for instance field Amazon.Runtime.Internal.HttpRequest:_request

[Sinsha]

This is happened Ubuntu 16.04
Duplicati version : 2.0.2.1-1

[Sinsha]

Not able to create backup/restore with Amazone s3

[JonMikelV]

That’s strange as a lot of other people have had no issues with S3.

However, a search of the forum for Amazon.Runtime.Internal.HttpRequest:_request seems to indicate other users have run into the issue with S3 COMPATIBLE destinations (such as Minio).

In at least one case, the solution was to set the --allowed-ssl-versions to TLS12 for the specific job (apparently it didn’t help when setting globally).

Windows service + minio with ssl error

I figured this out, want to document it for the sake of others. Synopsis: When using Duplicati with a Windows service, have to specify TLS12 at the job level in order to work with Minio. Setting at a global level does not appear to take. It did automagically work when I was using it as a desktop application instead of a Windows service, but I probably won’t have time to reproduce with a new system to determine the difference. Details: I used ssldump on my minio server to capture packets. 1…

Can you try that out and see if it helps?

[Sinsha]

Thanks for reply back.

Somehow this was my software update issue in my system. ca-certificates-mono was not updated.

Below commands solved my issue

sudo apt get update
sudo apt-get install ca-certificates-mono

[JonMikelV]

Glad to hear you got it working!

The certificates issue with mono is not uncommon, though usually I think it has a different error attached to it or I might have suggested that fix sooner.

(Oh, I went ahead and your post as the solution in case others get the same error.)