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Linux Security

How to Block a Port Using a Firewall in Linux

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A firewall is either a software-based or, in some cases, a hardware-based security system for networks. It automatically monitors traffic inflow and outflow on the system and blocks certain kinds of data flow based on

How to Find and Close Open Ports in Linux

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Network and Server administration is one of the key areas in which Linux is actually preferred to any other operating system. Hence most data center admins are well versed with the Linux command line. There

How to Find What IP Addresses are Connected to Linux

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A server is application software that listens to requests over a network and returns the requested files, data, etc. Linux machines have servers installed for many different protocols: Eg. HTTP Server, SSH Server, FTP Server,

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Linux Command Line Tips

How to Check Your Server Load in Linux

How to Find and Delete Empty Directories in Linux

How to Compile and Run C Program in Ubuntu

How to Remove Files with Specific Extension in Linux

How to Remove a Command from History in Linux

How to Add Text to the Beginning of File in Linux

How to Clear Apt Cache in Debian, Ubuntu and Linux Mint

How to Symlink a File in Linux

How to Find Top Running Processes by Memory Usage

How to Copy Large Number of Files in Linux

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