View Open Ports on a Linux Server
Have you ever wondered how to find out which ports are open on your Linux server? You may need this information to secure your server or troubleshoot connectivity problems.
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Prevent a Command from Being Saved in Bash History
Have you ever run a command in the terminal and then wished it had not been saved in your history? As a Linux system administrator, keeping certain commands out of the history can be important for security and privacy.
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The shred Command in Linux: How It Works and How to Securely Delete Files
In Linux-based system administration, shred is one of the most important and useful commands. It is used to delete files securely so their information cannot be easily recovered.
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Securely Expose SSH to the Internet: Things to Consider
Have you ever wondered how to access your server securely from anywhere in the world? SSH is the answer. But how can we ensure that this connection is secure?
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