Archive for the ‘English’ Category.

felipec’s msn-pecan 0.1.0 released

So that’s the news: msn-pecan 0.1.0 is released! And I’m glad.

To directly quote from Felipec’s post in his blog:

After a bit more than two years of development we are proud to announce the first stable release of msn-pecan. The project started as a “fork” of libpurple’s msn protocol (read below why it’s not really a fork), but it has grown and soon will become a standalone library with support for Telepathy too.

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Video favorito: Saturday Morning Science

Cristales crecidos en aguaJusto cuando creí haberlo visto todo encuentro este video titulado Saturday Morning Science.

Es un video con los experimentos realizados por el Dr. Donald Pettit, astronauta, Ingeniero de Vuelo y Oficial de Ciencias de la expedición 6 a bordo de la Estación Espacial Internacional.

Según la página de Saturday Morning Science, “hasta en su tiempo libre, los astronautas a bordo de la ISS están descubriendo cosas nuevas y sorprendentes sobre la naturaleza”. Según Don Pettit, estos experimentos no se tenían programados como parte de la misión; no eran ciencia “programada” sino ciencia “de oportunidad”.

Este video es un video crudo y directo al grano; tal vez sea una versión compilada; pero hay otras versiones en YouTube y la galería de videos de la expedición donde están editadas a modo de entrevista con un poco más de explicación.

Espero que los disfruten tanto como yo y se sorprendan tanto como los astronautas.

Superkb brand new Wiki

Thanks to SourceForge and its MediaWiki implementation, the Superkb project now has its own Wiki.

For now, it is only in English. I’m really looking forward to adding a full Spanish equivalent.

I think this will make it a lot easier to keep the documentation up to date.

The SourceForge Wiki doesn’t allow anonymous contributions, so an SF account is needed to include the people in the editors group.

Suggestions and contributions are welcome.

Debian Bridge

/etc/network/interfaces:

auto br0
iface br0 net dhcp
   bridge_ports eth0 eth1
   bridge_stp off
   bridge_fd 3

Meaning of the default EIGRP metric

Introduction and motivation

I have always felt the EIGRP metric as being really overwhelming. I see values like “2820096″ and instead of understanding it, I always end up asking what the hell does that number mean.

For example, in RIP:

R    192.168.0.0/24 [120/3] via 172.16.1.1, 00:00:15, FastEthernet0/0

Just by looking at the metric of “3″ I immediately know what is means: there are three steps between the announced network and the router receiving the advertisement. Easy, right? “Understanding the number” makes it easy for me to manage and diagnose it.

In OSPF, the metric (cost) is still not as cumbersome as EIGRP’s. However, in the following example, can you identify what does “66″ mean? For you, is it “just a number” that won over another because of its numerical value being lower? How do you know if the number is right or not?

O   192.168.0.0/24 [110/66] via 172.16.1.1, 00:00:82, FastEthernet0/0

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Etiquette in e-mail message quoting

This is a translation of my previous post Etiqueta en el citado de mensajes de e-mail.

Introduction

The most ignored Internet Etiquette rule is that of the posting style when replying to an e-mail message.

By “quoting” I mean the inclusion of a previous message in a new one (for example, a reply) with the intent of stating the relevance of the answer itself in the original context. I would say “Dan, I don’t know what are you talking about. Please quote the original e-mail in your reply next time in order to know what were you replying to.”

Almost every e-mail client do quote the original message in the reply, at least by default. That is good, and it contributes to the “netiquette”, but its abuse has made it completely useless.

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Bell on new line

To have a Linux beep each time a new line is printed on standard output, just filter your output through the following code:

gawk '{print "\007" $0 }'

This will effectively “prepend” a bell to each line.

You can convert this into an alias or a command (say /usr/local/bin/line-beep.gawk):

#!/usr/bin/gawk -f

{ print "\007" $0; }

So it can be used in a code like the following:

tail -f /var/log/messages | grep --line-buffered dhcpd | line-beep.bash

Opera and mysterious font aliasing problem in Ubuntu and Debian

Opera renders text without antialiasing under Ubuntu and Debian when a value in the font-family CSS property matches a “Core X” font before an Xft font.

That’s why Opera can be set to ignore core X fonts, by unchecking the Enable Core X fonts configuration option. You can use this as a workaround.

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