/sshd-module

Primary LanguageJava

SSHD Module

About

This component provides a built-in SSH server for Jenkins. It’s an alternative interface for the Jenkins CLI, and commands can be invoked this way using any SSH client.

Note
 This is unrelated to SSH Build Agents. In that case, the agents are the servers, and the Jenkins controller is the client.

Configuration

Enable the built-in SSH server in Manage Jenkins » Configure Global Security.

Advanced Configuration

System properties can be used to configure hidden options. These are generally considered unsupported, i.e. may be removed at any time.

  • org.jenkinsci.main.modules.sshd.SSHD.excludedKeyExchanges is a comma-separated string of key exchange algorithms to disable. By default, this disables SHA-1 based algorithms as they’re no longer considered safe. Use an empty string to disable no algorithms. The names of supported, enabled, and disabled algorithms can be viewed using the logger org.jenkinsci.main.modules.sshd.SSHD during initialization on the level FINE.

  • org.jenkinsci.main.modules.sshd.SSHD.excludedMacs is a comma-separated string of HMAC algorithms to disable. By default, this disables MD5 and truncated SHA-1 based algorithms as they’re no longer considered safe. Use an empty string to disable no algorithms. The names of supported, enabled, and disabled algorithms can be viewed using the logger org.jenkinsci.main.modules.sshd.SSHD during initialization on the level FINE.

Changelog