Aumentando a performance do seu GNU/Linux

https://i0.wp.com/www.linuxscrew.com/wp-content/uploads/2007/10/screenshot-interactive-linux-kernel-map.png

Esta é uma das VANTAGENS do Software Livre, poder-mos mexer no motor todo do bólide 😉 e afiná-lo a nosso gosto!

Aqui fica pois um link para o UbuntuGeek onde se explica como fazer, usando para tal a configuração do sysctl

$ apropos sysctl
sysctl (8)           – configure kernel parameters at runtime
sysctl.conf (5)      – sysctl(8) preload/configuration file

{via linuxscrew}

Performance tuning with System Control (sysctl) in Ubuntu — Ubuntu Geek

Important Note:- Editing sysctl.conf file might break your system this is for advanced users only

Procedure to follow

First you need to make a backup copy of /etc/sysctl.conf file using the following command

cp /etc/sysctl.conf /etc/sysctl.conf.back

Now edit the /etc/sysctl.conf file

sudo gedit /etc/sysctl.conf

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Todos usamos GNU/Linux!. That’s a Fact!

https://i0.wp.com/i151.photobucket.com/albums/s149/trmanco/linux.jpg_big_.jpg


“Every time you use Google, you’re using a machine running the Linux kernel.”

Chris DiBona

{via BoycottNovell}

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A nova polícia de bufos, a STASI do Reino Unido

https://i1.wp.com/www.informationliberation.com/files/040307terror2.jpg

A polícia de Londres está  a levar a cabo uma campanha de propaganda para encorajar a opinião pública a reportar-lhes qualquer actividade que achem suspeita, desde um simples utilizador de telemóvel, passando por quem conduz carrinhas fechadas ou quem tira fotografias na rua.

Tudo isto porque qualquer um pode ser terrorista.

Isto é a loucura total e as pessoas continuam a ir na conversa!

informationliberation – New Police Terror Posters Encourage Stasi UK

“Trust your instincts: it could disrupt terrorist planning and save lives. That’s the call to Londoners today as the Met launches its new counter-terrorism ad campaign. Unusual activity or behaviour which seems out of place may be terrorist-related, and everyone who works, lives in or visits the capital is being urged to pass on any information to the confidential Anti-Terrorist Hotline.

Terrorists live within our communities, making their plans whilst doing everything they can to blend in, and trying not to raise suspicions about their activities. I would ask people to think about unusual behaviour they have witnessed, or things they have seen which seem to have no logical or obvious explanation.”

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Livro Open Source sobre Física

https://i0.wp.com/farm1.static.flickr.com/19/94273466_db53426075.jpg
O estado norte-americano da Virginia, resolveu deitar mãos à obra e lançar um RFC – Request for Collaboration – a técnicos, centros técnicos escolas e universidades para juntos criarem um livro de Física, o Flexibook, seguindo o modelo Open Source e lançando-o sobre licença Creative Commons by Attribution Share-Alike.

Mas já há mais projectos, da matemática à física, passando pela biologia, etc.

Já havia noutra entrada referido outro interessante livro, “Opening Up Education The Collective Advancement of Education through Open Technology, Open Content, and Open Knowledge.

O projecto CK-12 do flexibook encontra-se aqui.

Mais discussão no slashdot.

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Acer Aspire One 30 dicas e Análise

Video Review of Acer Aspire One from LinuxJournal


30 Cool Acer Aspire One Hacks

{via linuxhaxor}

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Humor: Mas afinal que raio é isso do UNIX?

“Unix: What the heck is it?”

{via The Linux and Unix Menagerie}

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Dicas: GSmartControl – Verificar estado dos discos rígidos


Os discos rígidos relativamente modernos possuem uma tecnologia que nos
permite verificar o seu estado físico para saber-mos se estes estão a
ficar ou não com problemas e se estarão prestes a entregar a alma ao
criador, trata-se do SMART (Self-Monitoring, Analysis, and Reporting Technology).

Existe para GNU/Linux e outros NIX’s m conjuto de ferramentas que nos permitem aceder aos dados do SMART, são as smartmontools.

Hoje descobri que existe um fabuloso programa, o GSmartControl, que permite usar as smartmontools, mas através de GUI, ambiente gráfico.

Toca a ir verificar o estado desses HD’s, especialmente os dos portáteis.

GSmartControl – About / Features

Features

Automatically report and hilight any abnormal SMART information.

Ability to enable / disable SMART.

Ability
to enable / disable Automatic Offline Data Collection – A short
self-check that the drive will perform automatically every four hours
with no impact on performance.

Ability to set global and per-drive options for smartctl.

Display drive identity, capabilities, attributes, error and self-test logs.

Perform SMART self-tests.

Ability to load smartctl output as a “virtual” device, which acts just like a real (read-only) device.

Works on most smartctl-supported operating systems.

Extensive help information.

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