Why we implemented own SSHD solution

GitLab provides a number of features that execute via an SSH connection. The most popular one is Git-over-SSH, which enables communicating with a Git server via SSH. Historically, we implemented the features through a combination of OpenSSH Server and a separate component, a binary called GitLab Shell. GitLab Shell processes every connection established by OpenSSH Server to communicate data back and forth between the SSH client and the Git server. The solution was battle-tested, and relied on a ...

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