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What is an IOPS Really?

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IOPS is mentioned quite often when benchmarking and testing storage systems, but what does it really mean? We discuss and explain what an IOPS is and how to measure it.

Big Flap

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Developing apps in the past for Android, iOS, the web browser, and the desktop meant having to write different versions of the code; however, that's no longer the case thanks to Google's Flutter framework.

Swarming

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The Locust load test tool assesses the resiliency of your infrastructure to help you determine whether it can withstand a flood of requests.

Light at the End of the Tunnel

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Firewalls and network address translation often stand in the way of access to remote systems, but the free RPort software works around these obstacles and supports remote maintenance through a tunnel locally, in the cloud, and from your home office.

Blocks

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The Domain Name System is repeatedly the target of or is leveraged for attacks on corporate infrastructures; however, it also lets you protect corporate networks against attacks and malware. The Blocky DNS server sets up quickly to secure DNS queries and DNS filtering for corporate networks.

Radiance

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The Lustre open source distributed, parallel filesystem scales to high-performance computing environments.

On the DVD

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The Linux distro in this issue is a minimal self-containing DVD image for offline installation.

Welcome to ADMIN

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Freedom of choice is what you got. Freedom from choice is what you want. – Devo

Flight Ticket

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VMware's recent announcement about vCloud Hybrid Service involves expansion of the vCloud suite toward a public/hybrid cloud. In this article, we attempt to shed some light on the huge number of VMware products.

First Aid

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We look into some everyday questions that administrators with Ceph clusters tend to ask: What do I do if a fire breaks out or I run out of space in the cluster?

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