Evernote Tech Blog

The Care and Feeding of Elephants

Operations” blog posts:


Synchronization Speedupification

Memory Lane When we designed our synchronization protocol way back in 2007, we wanted to make sure that a client could use a minimal number of network requests to find all of the content in the user’s account, or only of the relevant changes … Continue reading

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Inside Evernote: Gerardo Lopez-Fernandez

Gerardo Lopez-Fernandez is an Operations Architect at Evernote. He is focused on helping scale the environment and provide tools and direction in support of the Operations team efforts. What role do you play on the Operations team? As the Operations … Continue reading

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Inside Evernote: Phil Jensen

Phil Jensen is a Principal Deployment Engineer at Evernote and is a member of the Operations team. Phil helps keep the service running in top form, working closely with the development team. How is Operations handled here at Evernote? We … Continue reading

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Graphite at Evernote – Open Source Release

In July I wrote about how we use Graphite at Evernote and the enhancements we made for our environment. These changes include templated dashboards, multi-device templated dashboards, and UI adjustments. The addition of templated dashboards allows us to create and … Continue reading

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@m.evernote.com Update

One of the ways to get content into your Evernote account is by sending email to your personal Evernote email address. This Knowledge Base Article has all the details if you haven’t used this feature of our product. Just before … Continue reading

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Graphite at Evernote

Like many Operations teams, we love metrics here at Evernote. Also like many Operations teams, we’ve all used a lot of tools over the years that provide solutions in this space. Often we find products that work, but aren’t exactly … Continue reading

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Doubling SSL Keys to 2048 Bits

As we stated in previous articles, security and privacy are very important to us. In addition to the product security enhancements we made to the service, we recently updated the SSL certificate for www.evernote.com to use a 2048-bit key. Many other companies are going … Continue reading

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FreeRADIUS + OpenLDAP TOTP Part 2

Earlier we discussed our selection of FreeRADIUS + OpenLDAP to do TOTP. Now for the good part: how this system is setup. As mentioned earlier, we use LDAP as the general data store for user information. Since LDAP is traditionally … Continue reading

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FreeRADIUS + OpenLDAP Based TOTP Part 1

Two-factor authentication (also known as two-step verification or 2FA) is essentially a must-have these days for critical infrastructure. The benefits and reasons why are well documented on our recent blog posts and elsewhere around the internet. Here at Evernote Operations, … Continue reading

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New version of Debian is released

On May 4th 2013, the Debian team released a new version (7.0) code named ‘Wheezy.’ This is a significant update and the Evernote Operations team is very excited about qualifying it for use in the near future. We are currently … Continue reading

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