Problem:
From 8.2.4 version onwards when we have to enable support connection we have to copy support_connection.tar file to Airwave server using scp and this can be done using a MAC or Unix platform. When we do this using the MAC we might come across the below Cipher error. no matching cipher found: client aes128-cbc,aes192-cbc,aes256-cbc server chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
The reason for this issue is Mac is looking for a different set of ssh ciphers, we need to have this added to the sshd_config on the Mac.
We can follow the below steps on MAC to do this,
# sudo vi /etc/sshd_config
Ciphers aes128-cbc,aes192-cbc,aes256-cbc MACs hmac-sha1,hmac-sha2-256,hmac-sha2-512 KexAlgorithms diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384 ServerKeyBits 2048
# sudo launchctl unload /System/Library/LaunchDaemons/ssh.plist # sudo launchctl load –w /System/Library/LaunchDaemons/ssh.plist Now we should be able to copy the file from MAC to Airwave without the cipher error.
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