PuTTY wish ssh2-only

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summary: Ability to prevent fallback to SSH-1
class: wish: This is a request for an enhancement.
difficulty: fun: Just needs tuits, and not many of them.
priority: medium: This should be fixed one day.
fixed-in: 2002-08-08 6e00685af02be0f4f7d24c8d294f3c96d6a43f8e 0.53

Currently, PuTTY's choice of SSH protocol can only be expressed as a
preference. If you ask for an SSH-2 connection and only SSH-1 is
available, or vice versa, PuTTY will fall back to whatever it can
use.

For security reasons we should also allow the user to specify "SSH-2
or nothing", so that if PuTTY couldn't make an SSH-2 connection it
would give up rather than fall back to SSH-1. For symmetry, we should
also support "SSH-1 or nothing", though that seems less obviously
useful.
Audit trail for this wish.

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(last revision of this bug record was at 2016-12-27 11:40:22 +0000)