Choose style:

Author Topic: "no matching algo kex"  (Read 10661 times)

0 Members and 1 Guest are viewing this topic.

Offline OkydOky

  • Newbie
  • Posts: 1
  • Thanks: 0
  • Registered : 15/02/2015
"no matching algo kex"
« on: October 07, 2015, 05:07:00 pm »
I can't seem to SSH anything from my Almond+

I get the Error:
ssh: connection to xxxx@X.X.X.X:22 exited: no matching algo kex

I used to be able to get this error to some machines but not others.
But now after recently Upgrading my last server to Debian Jessie, I can not SSH to it from my Almond+.

I've tried SSHing to: Debian Jessie, Ubuntu 15.04 and FreeBSD 10 all with the same issue.

« Last Edit: October 07, 2015, 06:37:01 pm by OkydOky »

Offline SecureComp

  • Backer
  • *
  • Posts: 541
  • Thanks: 1
  • Registered : 05/08/2014
Re: "no matching algo kex"
« Reply #1 on: October 07, 2015, 08:04:38 pm »
Your upgraded OS no longer supports the key algorithm used by the SSH client.

You can workaround this by adding the appropriate key algo to your /etc/ssh/sshd_config, restarting ssh and regen some keys.

Keep in mind this is a workaround, the reason the key algo isn't supported is that it's considered less secure.

My guess is that it would be diffie hellman group1 sha1 giving you the trouble.
Kickstarter Backer
Securifi Wiki Editor and Beta Tester, Not a Securifi employee
Almond+, many sensors, IOS App, Android Apps and Widgets


Page created in 0.04 seconds with 16 queries.