Customer cannot get access to SSH communication with a Gigacore.

Error:

"no matching key exchange method found. Their offer: diffie-hellman-group1-sha1"

Fix
1 - Put the attached file on your desktop
2- Launch the terminal
3 - Run  # cp Desktop/ssh_config .ssh/config

******

Host *
    Ciphers aes128-cbc,3des-cbc,aes256-cbc
    KexAlgorithms +diffie-hellman-group1-sha1

*******

4 - You're done !