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While Connecting through the Tectia client we are getting the error as below,

error: Could not open connection to `XXXXX@securefiletransfer.company.net#22': Key exchange failed

Request your assistance in resolving the error.

Regards, Girish

asked Jun 30 '10 at 02:49

Girish's gravatar image

Girish
1

edited Aug 11 '14 at 20:30

Joe%20-%20Tectia%20Support's gravatar image

Joe - Tectia Support ♦♦
51714


Please also check that you have enabled correct KEX/MAC algorithms from the Tectia Server's configuration. I've seen these key exchange errors like this happening when the client and the server cannot agree about common algorithms.

Windows:

Open Tectia Server's GUI configuration tool and navigate to:

"Connections and Encryption" -> select correct group, i.e. "Default-Connection" -> "Parameters" -> enable suitable KEX/MAC algorithms

Linux/Unix:

Edit ssh-server-config.xml file and add algorithms' names to the list.

Please also check that connecting clients have enabled these algorithms from their configurations.

link

answered Dec 09 '11 at 16:22

Sami%20Marttinen's gravatar image

Sami Marttinen ♦
191114

Hi!

The most common reason for the error you are getting, is that the host key of the host you are trying to connect to is not saved to the knownhosts on the client side. Please see: http://www.ssh.com/support/documentation/online/ssh/winhelp/61/client-sshg3-connection.html

link

answered Jul 01 '10 at 10:31

SSH%20KB's gravatar image

SSH KB ♦
509249246237

edited Aug 20 '15 at 03:02

Joe%20-%20Tectia%20Support's gravatar image

Joe - Tectia Support ♦♦
51714

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Asked: Jun 30 '10 at 02:49

Seen: 38,084 times

Last updated: Aug 20 '15 at 03:02

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