oh-my-zsh/plugins/ssh-agent/README.md

ssh-agent plugin

This plugin starts automatically ssh-agent to set up and load whichever credentials you want for ssh connections.

To enable it, add ssh-agent to your plugins:

plugins=(... ssh-agent)

Instructions

IMPORTANT: put these settings before the line that sources oh-my-zsh

To enable agent forwarding support add the following to your zshrc file:

zstyle :omz:plugins:ssh-agent agent-forwarding on

To load multiple identities use the identities style, For example:

zstyle :omz:plugins:ssh-agent identities id_rsa id_rsa2 id_github

To set the maximum lifetime of the identities, use the lifetime style. The lifetime may be specified in seconds or as described in sshd_config(5) (see TIME FORMATS). If left unspecified, the default lifetime is forever.

zstyle :omz:plugins:ssh-agent lifetime 4h

Credits

Based on code from Joseph M. Reagle: http://www.cygwin.com/ml/cygwin/2001-06/msg00537.html

Agent-forwarding support based on ideas from Florent Thoumie and Jonas Pfenniger