i have done centralised logging and on the centralised server i m receiving the following log from one of the clients.
"sshd:","Bad protocol version identification '0' from ::ffff:127.0.0.1""
Kindly help how to remove this message from appearing in logs.What's the reason behind these logs.
Looks like the SSH client being used doesn't support the versions of SSH used by the server.
What does your /etc/ssh/sshd_config file have in the "Protocol" section?
Code:# This example supports SSH version 1 and 2 Protocol 2,1The client seems to using version 0? What's that? Is it a custom SSH client you are writing that sends an incorrect value?Code:# This example supports SSH version 2 only Protocol 2