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13 de Junho, 2020

MacBook ’07 + Linux: Old Dog Learns New Tricks

I was looking for a cheap machine to run backups and weird experimental stuff and then I remember I had an old MacBook 3,1 from 2007 (Core 2 Duo 2.2 Ghz) in a shelve. In this post I’ll dig deep into useful tricks for anyone looking to use this laptop (or similar) as cli-only Debian server for fun and profit.

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23 de Abril, 2020

Qt: Static Builds Under Windows

Qt is a cross-platform software development framework for C++ used to build software across all major industries. If you work at company that uses Qt you may have wondered how you can pack all dependencies of your application in a single executable. Yes, that is possible but only with static builds. Let me show you how to do it.

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30 de Novembro, 2019

NanoPi NEO 2: Overclock

NanoPi NEO 2 is a very cheap (15$) and very good single board computer featuring a 64 bit quad-core ARM CPU. The only drawback one might found is the CPU locked between 816 MHz and 1 GHz. Today I’ll teach your how to safely overclock your NEO 2.

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4 de Fevereiro, 2019

NanoPi M4 / RK3399: Network Issues

So you got an amazing ARM SBC with the RK3399 CPU (NanoPi M4 / RockPro64 / Rock Pi 4B), so much power into such small form factor. Now you are trying Apache or other network intensive tasks and your network seems to crash randomly after a while or whenever it is under load? Learn what the cause of this common and how to fix it.

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30 de Janeiro, 2019

Armbian: Enable AppArmor

AppArmor allows you to restrict programs’ capabilities with per-program profiles. Profiles can allow capabilities like network access, raw socket access, and the permission to read, write, or execute files on matching paths. Learn how you can enable it in Armbian for a safer SBC.

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