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Author Topic: SSH Connection fails after update to OpenSSH 7.5  (Read 3983 times)

dbonine

  • Newbie
  • *
  • Posts: 1
SSH Connection fails after update to OpenSSH 7.5
« on: May 03, 2018, 10:51:44 am »

We have recently applied a security update to AIX to use OpenSSH 7.5. The update is causing all ssh connections from ICETCP Pro DejaWinT to be disallowed. I have made the suggested change  to the sshd_config, but that does not work. We are using ICETCP 4.4.30. TCP PRO 5 doesn't work either. I have tried the newest version of TCP PRO 5.1.30 and ICETCP Plus build 30 without success. I get the ssh login box, type in the credentials and the window disappears with no connection.

I am able to make SSH connections with PuTTY and other emulator evaluation software.
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jaredh

  • Jr. Member
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  • Posts: 7
Re: SSH Connection fails after update to OpenSSH 7.5
« Reply #1 on: February 20, 2019, 10:02:16 am »

Did you get an answer?
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Bob

  • Administrator
  • Ice Artist
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  • Posts: 1607
Re: SSH Connection fails after update to OpenSSH 7.5
« Reply #2 on: October 11, 2019, 11:05:12 am »

As in the ICE TCP Plus post, use this in your sshd_config file (and restart sshd).

KexAlgorithms diffie-hellman-group1-sha1,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
Ciphers 3des-cbc,blowfish-cbc,aes128-cbc,aes128-ctr,aes256-ctr
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