i have the following error message when trying to access my gitlab server via ssh from my jenkins:
My environment is the following:
Host System: Windows 10
Docker Desktop 2.1.0 with Linux based containers
Jenkins Docker Container: jenkins/jenkins and jenkins/jenkins:lts
I've a similar setup running with a linux for Docker and there isn't the same problem.
For testing purposes i've installed the latest beta version (3.0.0-beta10) of the "git client plugin" as suggestet in the comment of https://issues.jenkins-ci.org/browse/JENKINS-53933. But this didn't solve the problem.
I'm not sure if the credentials-binding-plugin is the right component for this.
It seems that other people have the same problem. e.g. The comment at the bottom of https://wiki.jenkins.io/display/JENKINS/SSH+Credentials+Plugin .