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Real-time Distributed Messaging On FreeBSD With NSQ

Dear Readers,

The month of October is drawing to an end and it's worth to note that it was a month full of events and meetings. First of all, I would like to bring to your attention to two releases: OpenBSD 6.2 and FreeBSD 10.4-RELEASE. Both are currently available. Moreover, there are a few events where you have the opportunity to meet each other.
In the BSD magazine, as always, we include a few top-notch articles. I really enjoy working on them. I would like to thank the BSD team members for reviewing and proofreading, and iXsystems for their constant support and time to make every edition a success.
And now, let’s read the articles!
Enjoy!
Ewa & The BSD Team

INSIDE

In Brief
Ewa & The BSD Team
This column presents the latest news coverage of breaking news, events, product releases, and trending topics from the BSD sector.

OpenBSD 6.2
Albert Hui
As soon as OpenBSD 6.2 was released, this article was drafted to cover the significant changes and features of this release. OpenBSD 6.2 release can be downloaded from the OpenBSD mirrors.

Real-time Distributed Messaging On FreeBSD With NSQ
Abdorrahman Homaei
A real-time application (RTA) is an application that responds within a time limitation that the user feels as immediate or current. The latency must be less than a predicted value. Latency is measured in seconds or milliseconds. Whether or not a given application qualifies as an RTA depends on the worst-case execution time (WCET), which is the maximum length of time a defined task or set of tasks requires on a given hardware platform. The use of RTAs is called real-time computing (RTC).

Tracking Hacker Activities in a Linux Server
Renan Dias
The recent wave of cyber attacks has shown us the importance of securing our infrastructure and systems. With the advancement of technology, attacks are likely to become more frequent and sophisticated. Have your systems ever been attacked? No? Well, there is a famous saying in Information Security: “There are only two types of companies: Those who have been hacked and know about it and those who have been hacked and don’t know about it.”

Emulating DOS Games
Natalia Portillo
There was a time when everything was about being joyous and playful. Those were the times when we played our games in a little operating system called DOS. Oh, glorious days of the past, fond memories you’ve become. But not to worry, because in this article, Natalia will explore the best solutions currently available to revive those old memories in your current computer via VirtualBox, DOSBox, and 86Box.

Solving Expressions Using Reverse Polish Notation
Rafael Santiago de Souza Netto
In this article, Rafael will show you a way of simplifying and solving math expressions programmatically. A sample code in C will be discussed to support the ideas discussed here. This is designated for readers with at least a minimal knowledge of C language with an interest in Computer Science.

Interview with Yue Chen
Ewa & The BSD Team
Yue Chen is a researcher at Florida State University, USA. He has published numerous high-quality papers in prestigious conferences and journals with a high impact. He also serves as a program committee member of a number of renowned conferences, symposiums, and workshops. Additionally, he is a BSD lover and several of his works are implemented on BSD systems.

The recent sting by Queensland’s Taskforce Argos in bringing a pedophile forum on the dark web to justice raises questions not just for systems administrators and IT professionals, but law enforcement and the general public as well. Who can we trust out there?
Rob Somerville


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BSD Magazine 10/2017 (98) (iBooks)
BSD Magazine 10/2017 (98) (PDF)

November 5, 2017

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