advanced-ssh-config 1.0.1

Add some magic to SSH and .ssh/config

Advanced SSH config
===================

|Travis| |PyPI version| |PyPI downloads| |License| |Requires.io|
|Gitter|

|ASSH logo - Advanced SSH Config logo|

Enhances ``ssh_config`` file capabilities

**NOTE**: This program is called by
`ProxyCommand <http://en.wikibooks.org/wiki/OpenSSH/Cookbook/Proxies_and_Jump_Hosts#ProxyCommand_with_Netcat>`__
from `lib-ssh <https://www.libssh.org>`__.

--------------

It works *transparently* with :

- ssh
- scp
- rsync
- git
- and even desktop applications depending on ``lib-ssh`` (for instance
`Tower <http://www.git-tower.com>`__, `Atom.io <https://atom.io>`__,
`SSH Tunnel Manager <http://projects.tynsoe.org/fr/stm/>`__)

--------------

The ``.ssh/config`` file is automatically generated, you need to update
``.ssh/config.advanced`` file instead; With new features and a better
regex engine for the hostnames.

Usage
-----

.. code:: console

$ assh --help
Usage: assh [OPTIONS] COMMAND [arg...]

Commands:
build Build .ssh/config based on .ssh/config.advanced
connect <host> Open a connection to <host>
info <host> Print connection informations
init Build a .ssh/config.advanced file based on .ssh/config
generate-etc-hosts Print a /etc/hosts file of .ssh/config.advanced
stats Print statistics

Options:
--version show program's version number and exit
-h, --help show this help message and exit
-p PORT, --port=PORT SSH port
-c CONFIG_FILE, --config=CONFIG_FILE
ssh_config file
-f, --force
-v, --verbose
-l LOG_LEVEL, --log_level=LOG_LEVEL
--dry-run

Commmand line features
----------------------

**Gateway chaining**

.. code:: bash

ssh foo.com/bar.com

Connect to ``bar.com`` using ssh and create a proxy on ``bar.com`` to
``foo.com``. Then connect to ``foo.com`` using the created proxy on
``bar.com``.

.. code:: bash

ssh foo.com/bar.com/baz.com

Connect to ``foo.com`` using ``bar.com/baz.com`` which itself uses
``baz.com``.

Configuration features
----------------------

- **regex for hostnames**: ``gw.school-.*.domain.net``
- **aliases**: ``gate`` -> ``gate.domain.tld``
- **gateways**: transparent ssh connections chaining
- **includes**: split configuration into multiple files, support
globbing
- **local command execution**: finally a way to execute a command
locally on connection
- **inheritance**: ``inherits = gate.domain.tld``
- **variable expansion**: ``User = $USER`` (take $USER from
environment)
- **smart proxycommand**: connect using ``netcat``, ``socat`` or custom
handler

Config example
--------------

``~/.ssh/config.advanced``

.. code:: ini

# Simple example
[foo.com]
user = pacman
port = 2222

[bar]
hostname = 1.2.3.4
gateways = foo.com # `ssh bar` will use `foo.com` as gateway

[^vm-[0-9]*\.joe\.com$]
gateways = bar # `ssh vm-42.joe.com will use `bar` as gateway which
# itself will use `foo.com` as gateway

[default]
ProxyCommand = assh --port=%p connect %h

--------------

.. code:: ini

# Complete example
[foo]
user = pacman
port = 2222
hostname = foo.com

[bar]
hostname = 1.2.3.4
gateways = foo
# By running `ssh bar`, you will ssh to `bar` through a `ssh foo`

[^vm-[0-9]*\.joe\.com$]
IdentityFile = ~/.ssh/root-joe

gateways = direct joe.com joe.com/bar
# Will try to ssh without proxy, then fallback to joe.com proxy, then
# fallback to joe.com through bar

DynamicForward = 43217
LocalForward = 1723 localhost:1723
ForwardX11 = yes

[default]
Includes = ~/.ssh/config.advanced2 ~/.ssh/config.advanced3 ~/.ssh/configs/*/host.config
# The `Includes` directive must be in the `[default]` section

Port = 22
User = root
IdentityFile = ~/.ssh/id_rsa
ProxyCommand = assh connect %h --port=%p
Gateways = direct
PubkeyAuthentication = yes
VisualHostKey = yes
ControlMaster = auto
ControlPath = ~/.ssh/controlmaster/%h-%p-%r.sock
EscapeChar = ~

Installation
------------

Download the latest build

.. code:: console

$ curl -L https://github.com/moul/advanced-ssh-config/releases/download/v1.0.1/assh-`uname -s`-`uname -m` > /usr/local/bin/assh
$ chmod +x /usr/local/bin/assh

Using Pypi

.. code:: console

$ pip install advanced-ssh-config

Or by cloning

.. code:: console

$ git clone https://github.com/moul/advanced-ssh-config
$ cd advanced-ssh-config
$ make install

First run
---------

Automatically generate a new ``.ssh/config.advanced`` based on your
current ``.ssh/config`` file:

.. code:: console

$ assh init > ~/.ssh/config.advanced
$ assh build -f

Tests
-----

.. code:: console

$ make test

Docker
------

Build

.. code:: console

$ docker build -t moul/advanced-ssh-config .

Run

.. code:: console

$ docker run -rm -i -t moul/advanced-ssh-config
or
$ docker run -rm -i -t -v $(pwd)/:/advanced_ssh_config moul/advanced-ssh-config
or
$ docker run -rm -i -t -v moul/advanced-ssh-config python setup.py test

Contributors
------------

- `Christo DeLange <https://github.com/dldinternet>`__

--

© 2009-2015 Manfred Touron - `MIT
License <https://github.com/moul/advanced-ssh-config/blob/master/License.txt>`__.

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:target: https://github.com/moul/advanced-ssh-config