https://github.com/tweag/ssh-participation

An ssh server that creates new users on-the-fly, great for letting users participate in a demo
https://github.com/tweag/ssh-participation

nix ssh-server user-management

Last synced: about 1 month ago
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An ssh server that creates new users on-the-fly, great for letting users participate in a demo

• Host: GitHub
• URL: https://github.com/tweag/ssh-participation
• Owner: tweag
• License: mit
• Created: 2021-08-10T18:25:16.000Z (about 3 years ago)
• Default Branch: master
• Last Pushed: 2023-12-18T22:07:33.000Z (9 months ago)
• Last Synced: 2024-05-02T15:26:21.083Z (5 months ago)
• Topics: nix, ssh-server, user-management
• Language: Nix
• Homepage:
• Size: 22.5 KB
• Stars: 15
• Watchers: 23
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: Readme.md
  • License: LICENSE

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README

        
# SSH participation server

This is a very simple SSH server for allowing users to easily participate in an interactive demo. It allows logging in with arbitrary usernames, creating a new user on-the-fly and giving the user a shell for it. A shared password among all users is used for authentication.

:warning: Note that this was created hastily and as a consequence might have some problems

## Usage

Enable the NixOS module with

```nix

{

  imports = [

    ./path/to/ssh-participation/module.nix

  ];

  services.ssh-participation.enable = true;

}

```

Then ssh to the server:

```

$ ssh demo.example.com

The authenticity of host 'demo.example.com (172.18.67.126)' can't be established.

RSA key fingerprint is SHA256:iYtE6QJoExY7GdF/dzWv9xlsekurZlZ49Yjo9xiUuu8.

This key is not known by any other names

Are you sure you want to continue connecting (yes/no/[fingerprint])? yes

Warning: Permanently added 'demo.example.com' (RSA) to the list of known hosts.

([email protected]) Enter password: pajamas mutual aspire amused

[[email protected]:~]$

```

Both the password and the host key are autogenerated the first time it runs and are available in `/var/lib/bouncer/id_rsa*` and `/var/lib/bouncer/password` respectively.

Users that logged in in this way are part of the `participants` group and have their home directory in `/home/participants/$USER`.

## Running for development

```

make

```