Data Centers
Data CentersHow to use the Linux iostat command to check on your storage subsystem
To help troubleshoot your Linux datacenter servers, you need the right tools. Jack Wallen introduces you to one such tool, iostat.
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Data Centers
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Data CentersHow to create disk images using GNOME Disk
Creating a disk image for a data center server doesn't have to be challenging. Jack Wallen shows you how easily this can be done with the help of GNOME Disk.
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Data CentersHow to monitor your Docker containers with ctop
Jack Wallen shows you how to install, and use ctop for quick and easy container monitoring on a Linux Docker server.
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The Tripwire installation is self-explanatory.
Data Centers
Data CentersHow to install and use Tripwire to detect modified files on Ubuntu Server
If you need the means to monitor data integrity on your Linux servers, Tripwire is the tool for the task. Here's how to install and configure this handy open source software.
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The details for my Samsung SSD.
Data Centers
Data CentersHow to check SSD health in Linux
Do you use Linux machines in your data center? If so, it's probably a good idea to regularly check the health of the SSD drives used on those machines. Here's how to do it.
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Data Centers
Open sourceVirtualBox: A cheat sheet
The VirtualBox GUI and command line tool makes it easier to work with virtual machines and appliances. Find out how to get and use this open source virtualization tool.
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Data CentersHow to virtualize macOS on VMware ESXi
Follow these steps to create a virtual machine for macOS to be hosted by VMware ESXi running on a bare-metal server.
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CloudHow to deploy and use a MySQL Docker container
If you have a need to quickly deploy a MySQL server, Jack Wallen shows you how, with the help of Docker.
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Data CentersHow to install a GUI on top of CentOS 7
GUI-less CentOS server got you down? If that's the case, Jack Wallen walks you through the steps to install GNOME, KDE, XFCE, or Mate for a much more user-friendly admin environment.
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NetworkingHow to create and manage Docker networks
Docker allows you to create specific networks and attach containers to them. Here's how to make use of this highly flexible feature.
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Data CentersHow to export and import containers with Docker
If you have a need to move Docker containers from one host to another, here's how to do that with the export/import feature.
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Data CentersHow to manually install the VirtualBox extension pack
If you find yourself with a mismatched VirtualBox and VirtualBox Extension Pack release, such that VirtualBox itself cannot resolve, Jack Wallen shows you how to fix this from the command line.
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Open sourceHow to check drive space on Linux from the command line
Is your Linux server running out of storage space? If you're not sure how to find that out, these three commands are important to learn.
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Data CentersHow to install Cockpit on CentOS 7
Cockpit is a powerful, web-based admin GUI for Linux servers. Here's how to install this tool on CentOS 7.
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Data CentersHow to resize a VirtualBox VM from the command line
Resizing VirtualBox VMs is easy, when you know the right commands and third-party tools to use. Here's everything you'll need.