This event can be fired only for SSH protocols. Since
SSH architecture doesn't know about certificates, or
other means of checking if remote server is really the one
you intended to connect to, it is a matter of
'trust' if you will accept connection or not.
This is how SSH works in real life - once you connect to
remote server and you are sure it is really the server you
expect it to be, you should store Fingerprint information
locally. For each new connection, you should test if
Fingerprint information is same as stored one - to be sure
that no one is 'in the middle' spying on your
connection. Fingerprint information is almost unique among
different server, and it is generated from server's
private key.
If you set Accept to
True (default), wodTelnetDLX will continue to
perform negotiation with the server normally. If you set it
to False (for instance, because you see that
Fingerprint information is not the same as before), it will
drop the connection.
Even you connect to same server, different protocol
versions will produce different Fingerprint information.
So, if you use SSH1 and store fingerprint information, and
then later you use SSH2 - you will see this information is
different. This is to be expected. You should store new
information also.