Secure Shell

Secure Shell, known informally as SSH or ssh, is a program allows a machine to login and execute commands on a remote machine securely. Communication is encrypted, allowing the machines to communicate over insecure networks without being snooped upon or hijacked. The most common implementation is OpenSSH, which is available on many operating systems such as Windows, MacOS, Linux, and BSD. Currently the OpenBSD project maintains OpenSSH.

Many public servers are accessible via SSH, as it is more secure and usually better-supported than the older, unencrypted telnet.

Windows

OpenSSH has been included with Windows 10 since version 1803. To ssh into nethack server on alt.org, open up the Command Prompt or Terminal and type

ssh nethack@alt.org

MacOS

Open Terminal and type

ssh nethack@alt.org

Linux/BSD

Most distributions include ssh by default. To login into alt.org type

ssh nethack@alt.org

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