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106 lines
2.9 KiB
Markdown
106 lines
2.9 KiB
Markdown
# ssh-agent plugin
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This plugin starts automatically `ssh-agent` to set up and load whichever
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credentials you want for ssh connections.
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To enable it, add `ssh-agent` to your plugins:
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```zsh
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plugins=(... ssh-agent)
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```
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## Settings
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**IMPORTANT: put these settings _before_ the line that sources oh-my-zsh**
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### `agent-forwarding`
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To enable **agent forwarding support** add the following to your zshrc file:
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```zsh
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zstyle :omz:plugins:ssh-agent agent-forwarding yes
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```
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### `helper`
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To set an **external helper** to ask for the passwords and possibly store
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them in the system keychain use the `helper` style. For example:
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```zsh
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zstyle :omz:plugins:ssh-agent helper ksshaskpass
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```
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### `identities`
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To **load multiple identities** use the `identities` style (**this has no effect
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if the `lazy` setting is enabled**). For example:
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```zsh
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zstyle :omz:plugins:ssh-agent identities id_rsa id_rsa2 id_github
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```
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**NOTE:** the identities may be an absolute path if they are somewhere other than
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`~/.ssh`. For example:
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```zsh
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zstyle :omz:plugins:ssh-agent identities ~/.config/ssh/id_rsa ~/.config/ssh/id_rsa2 ~/.config/ssh/id_github
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# which can be simplified to
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zstyle :omz:plugins:ssh-agent identities ~/.config/ssh/{id_rsa,id_rsa2,id_github}
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```
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### `lazy`
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To **NOT load any identities on start** use the `lazy` setting. This is particularly
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useful when combined with the `AddKeysToAgent` setting (available since OpenSSH 7.2),
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since it allows to enter the password only on first use. _NOTE: you can know your
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OpenSSH version with `ssh -V`._
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```zsh
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zstyle :omz:plugins:ssh-agent lazy yes
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```
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You can enable `AddKeysToAgent` by passing `-o AddKeysToAgent=yes` to the `ssh` command,
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or by adding `AddKeysToAgent yes` to your `~/.ssh/config` file [1].
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See the [OpenSSH 7.2 Release Notes](http://www.openssh.com/txt/release-7.2).
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### `lifetime`
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To **set the maximum lifetime of the identities**, use the `lifetime` style.
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The lifetime may be specified in seconds or as described in sshd_config(5)
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(see _TIME FORMATS_). If left unspecified, the default lifetime is forever.
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```zsh
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zstyle :omz:plugins:ssh-agent lifetime 4h
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```
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### `quiet`
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To silence the plugin, use the following setting:
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```zsh
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zstyle :omz:plugins:ssh-agent quiet yes
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```
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### `ssh-add-args`
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To **pass arguments to the `ssh-add` command** that adds the identities on startup,
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use the `ssh-add-args` setting. You can pass multiple arguments separated by spaces:
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```zsh
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zstyle :omz:plugins:ssh-agent ssh-add-args -K -c -a /run/user/1000/ssh-auth
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```
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These will then be passed the the `ssh-add` call as if written directly. The example
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above will turn into:
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```zsh
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ssh-add -K -c -a /run/user/1000/ssh-auth <identities>
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```
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For valid `ssh-add` arguments run `ssh-add --help` or `man ssh-add`.
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## Credits
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Based on code from Joseph M. Reagle: https://www.cygwin.com/ml/cygwin/2001-06/msg00537.html
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Agent-forwarding support based on ideas from Florent Thoumie and Jonas Pfenniger
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