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Configuration file (aka ``ssh_config``) support.
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Representation of config information as stored in the format used by
OpenSSH. Queries can be made via `lookup`. The format is described in
OpenSSH's ``ssh_config`` man page. This class is provided primarily as a
convenience to posix users (since the OpenSSH format is a de-facto
standard on posix) but should work fine on Windows too.
.. versionadded:: 1.6
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Create a new OpenSSH config object.
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Read an OpenSSH config from the given file object.
:param file_obj: a file-like object to read the config file from
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Return a dict of config options for a given hostname.
The host-matching rules of OpenSSH's ``ssh_config`` man page are used:
For each parameter, the first obtained value will be used. The
configuration files contain sections separated by ``Host``
specifications, and that section is only applied for hosts that match
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Since the first obtained value for each parameter is used, more host-
specific declarations should be given near the beginning of the file,
and general defaults at the end.
The keys in the returned dict are all normalized to lowercase (look for
``"port"``, not ``"Port"``. The values are processed according to the
rules for substitution variable expansion in ``ssh_config``.
:param str hostname: the hostname to lookup
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Return the set of literal hostnames defined in the SSH config (both
explicit hostnames and wildcard entries).
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Return a dict of config options with expanded substitutions
for a given hostname.
Please refer to man ``ssh_config`` for the parameters that
are replaced.
:param dict config: the config for the hostname
:param str hostname: the hostname that the config belongs to
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Return a list of host_names from host value.
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Returns the host's fqdn on request as string.
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