Allen Samuels

Improving Storage Performance with Ceph and Flash

Ceph is a storage system designed to be used at scale, with clusters of Ceph in deployment in excess of 40 petabytes today. At LinuxCon Europe, Allen Samuels,...
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Dovecot email

Building an Email Server on Ubuntu Linux, Part 2

In part 1, we installed and tested the Postfix SMTP server. Postfix, or any SMTP server, isn't a complete mail server because all it does is move messages...
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Pet Containers: You’re Not Doing it Wrong

The conventional wisdom of Linux containers is that each service should run in its own container. Containers should be stateless and have short lifecycles. You...
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IBM Building Blockchain Ecosystem

IBM believes blockchain technology, with its capability to create an essentially immutable ledger of digital events, will alter the way whole industries...
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The New Role of Assurance for Virtualized Networks

For as long as any of us can remember, fulfillment and assurance were two independent processes, mostly because they were conceived, operated and purchased by...
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open source compliance

Open Compliance in the Enterprise: Why Have an Open Source Compliance Program?

The following is adapted from Open Source Compliance in the Enterprise by Ibrahim Haddad, PhD. Traditionally, platforms and software stacks were implemented...
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Remote Logging With Syslog, Part 2: Main Config File

In the previous article, we looked at some of the basics of rsyslog -- a superfast Syslog tool with some powerful features for log processing. Here, I’ll be...
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