News Category: System Administration

Exploring OpenStack's Trove DBaaS Cloud Service

DBaaS moves the database service to the cloud, promising a new database instance at the click of a mouse. You can install databases such as MySQL, PostgreSQL, or even MongoDB very quickly thanks to package management, but the installation is not even half the battle. A functioning database also...
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Shasta: Interactive Reporting at Scale

Shasta: Interactive Reporting At Scale Manoharan et al., SIGMOD 2016 You have vast database schemas with hundreds of tables, applications that need to combine OLTP and OLAP functionality, queries that may join 50 or more tables across disparate data sources, oh, and the user is waiting, so you’d...
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How Stack Overflow Plans to Survive the Next DNS Attack

Let’s talk about DNS. After all, what could go wrong? It’s just cache invalidation and naming things. tl;dr This blog post is about how Stack Overflow and the rest of the Stack Exchange network approaches DNS: By bench-marking different DNS providers and how we chose between them By implementing...
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How Fast Are Unix Domain Sockets?

It probably happened more than once, when you ask your team about how a reverse proxy should talk to the application backend server. “Unix sockets. They are faster.”, they’ll say. But how much faster this communication will be? And why a Unix domain socket is faster than an IP socket when multiple...
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How to Use IPv6 on Apache?

Nowadays IPv6 is getting more and more common to be used on web servers. It’s better to implement IPv6 on servers in order to be accessible on IPv6 networks.  Here it is a really quick instruction how to get ready for IPv6 on your Apache web servers. I have installed a fresh CentOS and a fresh...
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10 Open Source Tools for Your Sysadmin Toolbox

Sysadmins, no matter what platforms they work on, are awash in great open source software tools. In this article, we highlight well-knownand not-so-well-knowntools that have released new versions in 2016. ... Vim Just because the Windows/Linux battle has been laid to rest, that doesn't mean the...
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Monitoring Software: The Market Lines Are Blurry

Who is the market leader in IT monitoring? You won’t find the answer to that question in this article. With a wide range of functionality being offered for multiple audiences, our priority is to provide clarity about who wants what. The New Stack is seeing two contradictory patterns. Many companies...
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How Linux Can Save Small Businesses (And Old Hardware)

Many small businesses with tight budgets are facing a tough choice: Stick with obsolete systems and remain vulnerable to hackers, or spend a lot to install new gear. David Gewirtz shows how Linux can help you preserve your investment while staying safe and secure. Linux is much more secure than...
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Manage Disk Image Files Wisely in the Face of DevOps Sprawl

There are strategies to prevent obsolete disk images from clogging up valuable space, especially in a rapid-change DevOps shop. However, not all VMs will benefit from the same plan. Disk images are fast and easy to create, but they're not free and they cause administrative problems. Each image file...
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Open Source Drives Companies to Change Hiring and Development

Open source today is not just about the products and technologies that companies use, but rather a whole rainbow of adjustments that have penetrated the corporate culture beyond the engineering department. I heard some of the best examples of this during a discussion for data industry leaders at...
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