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----
-stage: Create
-group: Source Code
-info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
----
-
# gitlab-sshd
-`gitlab-sshd` is a binary in [`gitlab-shell`](https://gitlab.com/gitlab-org/gitlab-shell)
-which runs as a persistent SSH daemon. It will replace `OpenSSH` on GitLab SaaS,
-and eventually other cloud-native environments. Instead of running an `sshd` process,
-we run a `gitlab-sshd` process that does the same job, in a more focused manner:
-
-```mermaid
-sequenceDiagram
- participant Git on client
- participant GitLab SSHD
- participant Rails
- participant Gitaly
- participant Git on server
-
- Note left of Git on client: git fetch
- Git on client->>+GitLab SSHD: ssh git fetch-pack request
- GitLab SSHD->>+Rails: GET /internal/api/authorized_keys?key=AAAA...
- Note right of Rails: Lookup key ID
- Rails-->>-GitLab SSHD: 200 OK, command="gitlab-shell upload-pack key_id=1"
- GitLab SSHD->>+Rails: GET /internal/api/allowed?action=upload_pack&key_id=1
- Note right of Rails: Auth check
- Rails-->>-GitLab SSHD: 200 OK, { gitaly: ... }
- GitLab SSHD->>+Gitaly: SSHService.SSHUploadPack request
- Gitaly->>+Git on server: git upload-pack request
- Note over Git on client,Git on server: Bidirectional communication between Git client and server
- Git on server-->>-Gitaly: git upload-pack response
- Gitaly -->>-GitLab SSHD: SSHService.SSHUploadPack response
- GitLab SSHD-->>-Git on client: ssh git fetch-pack response
-```
+This page
+[has moved into the `gitlab` repository](https://docs.gitlab.com/ee/development/gitlab_shell/gitlab_sshd.html).