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How to Use Port Knocking to Secure SSH in Linux

Port Knocking is an effective way to control SSH access. Here is how to use port knocking to secure SSH in Linux.

Often you may need to use line numbers in vim editor. Here is how to enable & disable line numbers in vim.

Sometimes you may need to read audit logs in Linux. Here are the steps to do so.

Sometimes you may need to check user login details in Linux. Here are the different Linux commands to do so.

Sometimes you may need to delete multiple folders at once in Linux. Here are the steps to delete multiple directories in Linux.

Sometimes you may need to force cp command to overwrite files & directories without confirmation. Here are the steps to do so.

Sometimes you may need to force delete directory or folder in Linux. Here are the steps to force delete directory in Linux.

Often you may need to upload files and data asynchronously in web pages. Here is how to upload file asynchronously in JavaScript.

Sometimes you may need to store data in local storage in JavaScript. Here are the steps to do it.

Sometimes you may need to display local storage data in JavaScript. Here are the steps to do it.