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kvm
KVM KVM (Kernel-based Virtual Machine) is a Linux kernel module that allows you to create virtual machines on your physical machine. It’s a type-1 hypervisor, which means it runs directly on top of the Linux kernel, rather than being a separate layer like a traditional guest operating system. The use of KVM is to run…
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tcpdump
Tcpdump Tcpdump is a powerful network debugging and analysis tool that allows users to capture and display network traffic. It’s a fundamental command for any Linux user who needs to troubleshoot network issues, monitor network activity, or analyze network protocol behavior. The use of tcpdump is diverse: Troubleshooting: Use tcpdump to capture packets related to…
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xargs
xargs: The Power Tool for Automating Tasks As a Linux user, you’ve likely encountered situations where you need to automate repetitive tasks or process large datasets. That’s where xargs comes in – a powerful command that helps you execute commands on multiple inputs at once. In this article, we’ll explore the basics of xargs, its…
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tune2fs
Tune2fs The tune2fs command is used to modify file system parameters on a Linux ext2/3/4 file system. This includes setting or modifying values such as the number of blocks, block size, inode count, and mount time among others. The main purpose of this command is to optimize file system settings for better performance or to…
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restorecon
Restorecon The restorecon command is a utility used to reset the context (SELinux labels) of files and directories to their default values, based on their type and file type. This command is essential for users who work with SELinux-enabled systems and need to restore the default security context of files after they have been modified…
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dstat
dstat Dstat is a system monitoring tool that displays detailed information about CPU, memory, disk I/O, network, and other system resources in real-time. It’s similar to tools like htop, sysdig, or nload, but provides more detailed and customizable output. The use of dstat is varied: Monitoring system performance: Identify bottlenecks and resource hogs. Troubleshooting issues:…