The following lines were added (+) and removed (-):
Jan 01 01:31:24 servername sshd[1528]: fatal: no matching mac found: client hmac-md5 server umac-64-etm@openssh.com,umac- 128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh .com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]Indicates that the cipher is not supported. Correct this by enabling the cipher in /etc/ssh/sshd_config Jan 01 01:37:05 servername sshd[1538]: fatal: no matching mac found: client hmac-md5 server umac-64-etm@openssh.com,umac- 128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh .com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 [preauth]Indicates that the mac is not supported. Correct this by enabling the mac in /etc/ssh/sshd_config Jan 01 01:39:26 servername sshd[1606]: fatal: Unable to negotiate a key exchange method [preauth]Indicates that