I'm using HeidiSQL ver. 188.8.131.5293 and want to establish a connection to my remote server where I'm running mysql 5.7 bond to 127.0.0.1.
For this I usually use a SSH tunnel to connect to the server. But since I extended my authentication with a additional PAM passwort question after authentication with the key succeeded, HeidiSQL doesn't want to work anymore.
Everytime I'm opening a connection, HeidiSQL opens a window (screenshot attached) with no ability to input the password anywhere. When I then click okay, it immidiatly closes the connection saying "Can't connect to mysql server on 'localhost' (10061)".
I personally think, that this is a software caused issue cause HeidiSQL isn't parsing the aoutput from plink. So it doesn't detect if plink expects input now. Hopefully you can fix this issue with an appropriate patch.
Alexander Jank - http://alexanderjank.de