Basic commands Showing current status Adding rules iptables -A chain_name -p protocol –dport port -j action Allow tcp connection with port 22 input: Disallow tcp…
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Connection may not safe When we connet to a new remote server host by SSH, we will get a message as bellow: The authenticity of…
Leave a CommentDescription This error occurs when excute following codes: outputs: mysqldump: Error: ‘Access denied; you need (at least one of) the PROCESS privilege(s) for this operation’…
Leave a CommentMethod 1 Let server send heartbeat to client. sudo vi /etc/ssh/sshd_config, add following codes: ClientAliveInterval means how ofen server sending heartbeat to client.ClientAliveInterval means how…
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