The basic operations of Docker containers and images, the operation commands are very similar to those of Linux. This article only demonstrates some commands. 1.…
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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…
Leave a CommentConnection 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…
Leave a CommentInstalling Caddy2 Caddy2 installing tutorial. Installing PHP Installing MySQL Downloading WordPress and Extracting Configuring Configuring Caddy Configuring your Caddyfile which located at /etc/caddy/Caddyfile. Restarting Caddy.…
Leave a CommentDescription Background updates are not working as expected error occurs in wordpress’s site health checking. Analysis As shown above, some files are not writable by…
Leave a CommentDescription This error occurs when installing a plugin for wordpress. Analysis This may cause by incomplete configuration of wordpress，plugin installer couldn’t find related directories. Fix…
Leave a CommentCaddy2 is powerful opensource web server. Compared to other web servers, such as Apache2/Nigix, Caddy can deploy https automaticly, and Caddy is very easy to…
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