ssh

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Show HN: ssh ssh.place
6 hours ago
- Access the canvas via SSH with no account or installation required.
- The canvas is 200x60 cells, and each user can place one cell every 15 seconds.
- SSH authentication uses any SSH key, no sign-up needed.
- Control with WASD or HJKL keys, numbers 0-9 for colors, and Tab to cycle through all 16 colors.
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RFC 9987: Secure Shell (SSH) Agent Protocol
a day ago
- The document specifies a key agent protocol for use in the Secure Shell (SSH) protocol, enabling clients to interact with a key management component that holds private keys.
- The protocol is a packetised request-response system driven solely by the client, with messages for loading, removing, listing, and using keys, as well as locking/unlocking the agent.
- Keys can be added with optional constraints such as lifetime or user confirmation, and agents may support only a subset of key types or refuse operations in certain contexts.
- Agent forwarding over SSH connections is supported, allowing remote systems to use stored keys without exposing key material, but caution is advised due to transitive trust.
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Opkssh integrating single sign-on with SSH (2025)
3 days ago
- OPKSSH integrates single sign-on (SSO) with SSH using OpenID Connect, eliminating the need to manually manage SSH keys.
- It uses OpenPubkey to add public keys to ID tokens, creating PK Tokens that serve as certificates without modifying existing SSO protocols.
- OPKSSH has been open-sourced under Apache 2.0, donated by Cloudflare to the OpenPubkey project, moving from closed source to community-driven development.
- Security is improved with ephemeral keys (default 24-hour expiration), reducing risk of compromise; usability increases as users only need to sign in to their identity provider.
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Hosting an SSH Server
6 days ago
- Author wanted a remote server and used a spare laptop, home router, and free time.
- Installed an SSH server on the old laptop and modified the default configuration.
- Created an SSH key and copied it to the new computer for authentication.
- Forwarded port 666 on the router to port 666 on the server to allow external access.
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Late.sh – a command-line Clubhouse for computer people
12 days ago
- late.sh is a cozy command-line clubhouse for computer people, offering chill radio, classical stations, and guest stations.
- Includes arcade games (2048, sudoku, nonograms, solitaire), a collaborative artboard, daily challenges, live chat, and news sharing.
- Multiplayer games are coming soon.
- The artboard is a shared ASCII canvas where each cell remembers who placed it, with daily and monthly snapshots to preserve history.
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GitHub suddenly rejected my SSH key (the fix was a .pub file?)
13 days ago
- Git pull stopped working on a laptop with an SSH key that was previously fine, while the same key worked on other devices.
- The private key was valid, using a modern signature algorithm, and SSH config was correct; GitHub status was green.
- The fix was simply generating a missing .pub file from the private key using `ssh-keygen -y -f <key> > <key>.pub`.
- A 12-trial test confirmed that the .pub file is required: without it, authentication is rejected; with it, it works.
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Show HN: Running server scripts from smartphone via SSH
19 days ago
- Remote Runbooks are SSH scripts stored on a server and executed via RebootX with one click.
- Runbooks are loaded from the /usr/local/sbin/rebootx/runbooks directory on the server, with possible customization based on user feedback.
- Scripts prefixed with '__' are marked as dangerous, requiring confirmation before execution for safety.
- Unlike SSH Command Macros, Remote Runbooks are managed on the server, ideal for long scripts, while macros are for short commands and shared across providers.
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Using PowerShell over SSH, Twenty Years Later
22 days ago
- Microsoft now includes OpenSSH client in Windows 10 and Server 2019+, with SSH server preinstalled in Windows Server 2025.
- To use PowerShell as default shell over SSH, set registry value to PowerShell 7's pwsh.exe and configure sshd subsystem with short names or symlinks.
- Key authentication differs for admin accounts: keys must go to administrators_authorized_keys with strict ACLs, causing common setup issues.
- PowerShell 7 supports remoting over SSH with object pipelines, working across Windows, Linux, and macOS via commands like Enter-PSSession.
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Show HN: ssh ssh.place

RFC 9987: Secure Shell (SSH) Agent Protocol

Opkssh integrating single sign-on with SSH (2025)

Hosting an SSH Server

Late.sh – a command-line Clubhouse for computer people

GitHub suddenly rejected my SSH key (the fix was a .pub file?)

Show HN: Running server scripts from smartphone via SSH

Using PowerShell over SSH, Twenty Years Later