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OpenSSH Server

OpenSSH Server is a containerized Secure Shell (SSH) server that provides limited, sandboxed access to mapped folders and processes for homelab users who need…

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OpenSSH Server is a containerized Secure Shell (SSH) server that provides limited, sandboxed access to mapped folders and processes for homelab users who need controlled remote access without full host login.

Platform availability

Available on 3 of 9 platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS
  • Proxmox (not listed)
  • Helm
  • Mac (not listed)
  • Windows (not listed)
  • Linux (not listed)

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

31/100 Low

Maintained
0GitHub repository no longer exists
Popular
No data
Easy to install
553 install platforms, install notes, Docker image
Light to run
801 GB minimum RAM, runs on ARM

Based on 3 of 4 factors.

Availability: platform listings confirmed today, links checked 14 days ago

No GitHub repository data collected yet.

Checked 15 days ago - source: GitHub (BigBearTechWorld/openssh-server)

Resources & Compatibility

Minimum requirements: 1 GB RAM, 2 CPU core(s). ARM (e.g. Raspberry Pi) is supported.

Checked 15 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Private key files need tight permissions Keep private key files such as ~/.ssh/id_rsa owned by you and readable only by you, for example with 600 permissions (owner read/write only). SSH (secure shell) will refuse a key if other users can read it, so passwordless login can stop working. source
  • Approved public keys live in authorized_keys Put the public key you want to allow into the account's authorized_keys file, commonly ~/.ssh/authorized_keys. The SSH server checks that file to decide whether a key may log in, so a missing or wrong entry means the key is rejected. source
  • Application setup Configure the container using the LinuxServer.io OpenSSH server application setup guide, including authorized_keys and mapped folders. source

Fetched 5 days ago - each note links to its source

Alternatives (10)

  • KiTTY - KiTTY is an opensource terminal emulator, forked from PuTTY , that adds many extra features to the original software.
  • Mosh - Mosh (mobile shell), the mobile SSH replacement.
  • PuTTY - PuTTY is a free and open-source terminal emulator, serial console, and network file transfer application that supports protocols such as SS…
  • Royal TSX - Royal TS provides easy and secure access to your remote systems Unlock the power to remotely manage your systems on multiple platforms!
  • SecureCRT - SecureCRT combines rock-solid terminal emulation with the strong encryption, data integrity, and authentication options of the Secure Shell…
  • Termix - Termix is a free, open-source, self-hosted server management platform providing SSH terminals, remote desktop (RDP, VNC, Telnet) access, fi…
  • WindTerm - A professional SSH/Telnet/Serial/Shell/Sftp client for DevOps.
  • Xshell - Xshell is a powerful SSH1, SSH2, SFTP, TELNET, RLOGIN and SERIAL terminal emulator for Windows platforms.
  • ZOC - ZOC is a powerful and well-established terminal emulator and telnet client, well known for its outstanding user interface with tabbed multi…
  • crushftp - CrushFTP is an extremely powerful, easy to use FTP solution.

Checked yesterday - source: AlternativeTo

Common questions

Where does the SSH server check to approve a public key for login?

It checks the account's authorized_keys file, commonly ~/.ssh/authorized_keys. A missing or wrong entry means the key is rejected.

Where are the default SSH server settings on Mint, and what port is often targeted?

The default settings are in /etc/ssh/sshd_config. Port 22 is the default listening port, and many mass attacks assume SSH is running there.

Should a new self-hoster expose SSH directly to the internet?

The advice is to use a VPN until you fully understand your attack surface. If you expose SSH, bots will attempt access regardless of the port.

Why can ssh or scp appear to make connections from low-numbered ports?

This can happen with rhosts and rhosts-rsa authentication because the server needs to trust the username provided by the client.

Answers sourced from github.com, www.chiark.greenend.org.uk, www.reddit.com, www.redditmedia.com

Community

Collected 9 days ago - public community threads