Recent Posts by Michael Mullany

LDAP Directories: The Forgotten NoSQL

When most Rails developers encounter LDAP, it’s usually for user authentication. And most of the time, there’s no choice, they’re working under a dictate that requires them to use it. Usually, this means Active Directory, but very occasionally something like OpenLDAP...
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Programming Contest! And the Challenge is...Measure Rails Momentum

We announced the Worst App Server Ever (WASE) contest last week, as the second in a series of Engine Yard programming contests. Since then, we’ve heard lots about your efforts to put a basic twitterbot together, and now the time has come to describe the challenge...
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Nginx Security Vulnerability: SSL Man in the Middle Attack

A security vulnerability in all versions of nginx (as well as several other web servers) has been reported. Attackers can exploit this vulnerability by intercepting SSL sessions and compromising encryption key renegotiation via a plaintext injection, allowing the...
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Win a Motorola DROID Programming Contest: 'Worst App Server Technology Ever'

The goal of this contest is to collaborate with your other contestants to build the “worst app server ever” (WASE) , and use it to complete one or more challenge computations. The challenge computation(s) and their input data-set(s) will be announced and posted next...
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Security vulnerability in nginx

A security vulnerability in nginx has been reported. This vulnerability is exploited via a null pointer dereference, and although this has been characterized as a Denial of Service attack, we suspect that it can be exploited to execute arbitrary code. As such, it’s...
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Announcement: Engine Yard Cloud Price Reduction

As many of you have heard, Amazon announced pricing changes this morning. Customers have been asking if Engine Yard pricing will be adjusted accordingly, so before you call your rep, here’s your answer!
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10 Years of Virtual Machine Performance (Semi) Demystified

There are many opinions in the air about the impact that virtualization has on performance, so I thought a short blog would be good to explain (as best I can) virtual machine performance characteristics with pointers to relevant benchmarks and technical papers.
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Security Vulnerability in Nginx: Patch & Upgrades Available

Today, nginx released new versions (0.6.39, 0.7.62, 0.8.15) and a patch to fix a remote execution security vulnerability in all versions of nginx. Attackers exploiting this vulnerability can execute arbitrary code within the rights of the nginx worker process or cause...
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New on the Engine Yard Cloud: Flex!

Today we’re formally announcing the next version of Engine Yard Cloud for Rails web developers and web teams! Our new feature plan is called Flex (get it? because it’s Flexible!).
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Engine Yard Adds JRuby Support

Today at JavaOne, Engine Yard is announcing support for JRuby. This means that people will soon be able to select JRuby as a runtime option for Engine Yard Cloud, and subsequently on the Engine Yard private cloud for cluster and slice customers. We’re excited to...
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