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Discourage SSH-1 in documentation.

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This commit is contained in:
Jacob Nevins 2014-11-08 18:37:43 +00:00
parent 5da1d58325
commit 9090c1bb69
2 changed files with 18 additions and 4 deletions
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19
doc/config.but
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@ -2268,16 +2268,27 @@ make the most of a low-\i{bandwidth} connection.
\cfg{winhelp-topic}{ssh.protocol} \cfg{winhelp-topic}{ssh.protocol}
This allows you to select whether you would like to use \i{SSH protocol This allows you to select whether you would prefer to use \i{SSH protocol
version 1} or \I{SSH-2}version 2. \#{FIXME: say something about this elsewhere?} version 1} or \I{SSH-2}version 2, and whether to permit falling back
to the other version.
PuTTY will attempt to use protocol 1 if the server you connect to With the settings \q{1} and \q{2}, PuTTY will attempt to use protocol 1
does not offer protocol 2, and vice versa. if the server you connect to does not offer protocol 2, and vice versa.
If you select \q{1 only} or \q{2 only} here, PuTTY will only connect If you select \q{1 only} or \q{2 only} here, PuTTY will only connect
if the server you connect to offers the SSH protocol version you if the server you connect to offers the SSH protocol version you
have specified. have specified.
You should normally leave this at the default, \q{2 only}. The older
SSH-1 protocol is no longer developed, has many known cryptographic
weaknesses, and is generally not considered to be secure. If you
permit use of SSH-1 by selecting \q{2} instead of \q{2 only}, an
active attacker can force downgrade to SSH-1 even if the server
you're connecting to supports SSH-2.
PuTTY's protocol 1 implementation is provided mainly for
compatibility, and is no longer being enhanced.
\S{config-ssh-sharing} Sharing an SSH connection between PuTTY tools \S{config-ssh-sharing} Sharing an SSH connection between PuTTY tools
\cfg{winhelp-topic}{ssh.sharing} \cfg{winhelp-topic}{ssh.sharing}

3
doc/faq.but
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@ -63,6 +63,9 @@ files into PuTTY's format.
Yes. SSH-1 support has always been available in PuTTY. Yes. SSH-1 support has always been available in PuTTY.
However, the SSH-1 protocol has many weaknesses and is no longer
considered secure; it should be avoided if at all possible.
\S{faq-localecho}{Question} Does PuTTY support \i{local echo}? \S{faq-localecho}{Question} Does PuTTY support \i{local echo}?
Yes. Version 0.52 has proper support for local echo. Yes. Version 0.52 has proper support for local echo.