Data Centers
NetworkingHow to connect a new host to Zabbix monitoring server
Jack Wallen shows you how to add a remote server to the Zabbix monitoring system, so you can keep track of all your data center Linux servers from a single location.
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Data Centers
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SecurityWhy 23% of companies never test their disaster recovery plan, despite major risks
Some 95% of companies have a disaster recovery plan, but 27% lost revenue due to an outage within the last year, according to Spiceworks.
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Image: iStockphoto/Denis Isakov Data Centers
CloudHow to escape the cloud and move back to on-premise systems
Cloud computing may have been a good idea at the time, but it isn't always right for your application. How do you move it back to your own systems? Experts offer advice.
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Image: iStockphoto/scanrail Data Centers
Data CentersHow to clean inside dirty servers: Good advice from experts
You may have a plan for cleaning your company's data center, but what about inside the servers, storage, and switches themselves? "Garbage in, garbage out" takes on a whole new meaning.
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Data CentersHow to install OpenLDAP on Ubuntu 18.04
Jack Wallen shows you how to install OpenLDAP on Ubuntu 18.04 and how to add your first entry to the database.
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Image: iStockphoto/Vasyl Dolmatov Data Centers
SoftwareHow to become a DevOps engineer: A cheat sheet
If you are interested in pursuing a career in DevOps and don't know where to start, here's your go-to guide for salaries, skills, and interview questions.
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Data CentersHow to set up high availability storage with GlusterFS on Ubuntu 18.04
If you need to set up a distributed file system in your data center, you can't go wrong with GlusterFS. Jack Wallen shows you how.
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Data CentersHow to remove GNOME from CentOS 7
If you've installed GNOME on CentOS 7 and now want to remove it, you'll be happy to know the process is quite simple. Here's a quick look at how it's done.
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The first screen of the installer.
Data Centers
Data CentersHow to install Ubuntu Minimal Server
Canonical has released a new edition of its server platform, ideal for containers and the cloud. Here are the steps to follow for installing Ubuntu Minimal.
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Image: Google / YouTube Data Centers
Data CentersD-Wave quantum computers: Cheat sheet
This comprehensive guide covers everything you need to know about D-Wave Systems' quantum computers, machines that could one day tackle problems that would be impossible to solve today.
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Image: Wavebreakmedia, Getty Images/iStockphoto Data Centers
Data CentersServer virtualization best practices and tips on what not to do
People in the data center trenches offer the latest and greatest advice about server virtualization, including how to plan, implement, and maintain these projects.
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My Ubuntu Server 18.04 hostname.
Data Centers
Data CentersHow to change the hostname on Ubuntu 18.04
Changing the hostname in Ubuntu 18.04 is a bit different than in previous iterations. Here's how to take care of this important configuration.
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The output of the Kubernetes cluster initialization command.
Data Centers
Data CentersHow to install a Kubernetes cluster on CentOS 7
Jack Wallen walks you through the process of installing a Kubernetes cluster on the enterprise-friendly CentOS 7 server platform.
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If you don't want to cite the developers, you can always pay the 10000 EUR.
Data Centers
Data CentersHow to run Linux commands simultaneously with GNU Parallel
Your data center might depend upon Linux, so why not get the most out of the command line with GNU Parallel?
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Image: Jack Wallen Data Centers
Data CentersHow to use the Linux screen command to keep your remote processes running
Jack Wallen shows you a handy Linux trick that can go a long way to prevent you from losing precious command line work due to questionable network connections to your remote servers.