Tag: tech:yes
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GMail as mail relay for your Linux home server
Since my Fedora Post-installation Configurations article, some things have changed in Fedora 20. For example, for security and economy reasons, Sendmail does not get installed anymore by default. Here are the steps to make your Linux home computer be able to send system e-mails as alerts or from things that run on cron. All commands…
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Fedora 20 virtualization with NetworkManager native bridging
Fedora 20 is the first distribution to bundle NetworkManager with bridging support. It means that the old hacks to make a virtual machine plug into current network are not required anymore.
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Install OS X on a Mac computer from an ISO file
For some reason nobody published a simple guide like this. Maybe nobody tryied this way. I just tryied and it works with OS X Mountain Lion on a Mid 2012 MacBook Air. If you have a Mac computer or laptop and want to install OS X, and all that you have is the operating system…
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iPhone Call History Database
Either if you are doing forensics or just want better reports about your call patterns, the iPhone Call History database can be very handfull. If you have a jailbroken iPhone, you can access the database file directly. If you are not, you can still access it offline simply copying the file from an unencrypted iTunes backup…
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Convert DBF to CSV on Linux with Perl and XBase
I spent a few days to figure out how to make a simple conversion of a DBF file into a plain text file as comma separated values (CSV) or tab separated values (TSV) in a batch/command line way. I was almost setting up an OpenOffice.org server because it seamed to be the only packaged solution to…
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Eu, Drupal e a Arrebentação
Dediquei-me nos últimos meses a estudar o Drupal. Fiz isso nas horas vagas (tipo da meia noite às 6 da manhã) e foi uma longa curva de aprendizado. Para quem não sabe, Drupal é um Sistema de Gerenciamento de Conteúdo (CMS) para a Web. Um fazedor de sites, em outras palavras. Quaisquer sites. Umas semanas…
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How the iPhone 3GS records videos
Here are some technical details an analysis about the formats used by the Apple iPhone 3GS to record video. This is an annotated screenshot of the excellent Mediainfo by Jerome Martinez. Some notes: Apple always uses MOV as the extension for standard MP4 files. The recorded video uses an MP4 container so it is capable…
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WhiteHouse.Gov migrou para Drupal
Drupal é um dos melhores gerenciadores de conteúdo que existem e é Open Source. Há quem diga que é porque o governo Obama incentiva Open Source blablabla etc. Mas a verdade é que provavelmente a escolha foi pelo melhor: Drupal. No blog do Tim O’reilly, há também mais detalhes sobre a infraestrutura: Red Hat Linux…
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Organize fast and precisely your MP3 files with ID3v2 tags
This is a set of personal notes and a tutorial for everyone about how to correctly organize and tag MP3 files using the id3 command line tool. General way to tag MP3 files: id3 -M -2 [-v] [-t title] [-a artist] [-l album] [-n tracknr] [-y year] [-g genre] [-c comment] file.mp3 Recursively tag with…
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A Test with High Definition Video Conferencing
I just participated in very successful proof of technology with Siemens OpenScape video conferencing products. We made a point-to-point SIP high definition video conference over a local area network. Another test used H.323 protocol. We also included my SIP-enabled Nokia E61i in the conference over the office WiFi network in a direct multipoint call simply…