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Postcard: the only mail I may send while on vacation (Photo credit: Wikipedia)
Few month ago, I wrote about gmail's reply-to. The setup of the out-of-office message is quite easier and well documented.
While proofreading this post, I decide to create a category named useless.
Category: how to Tagged: Gmail Mail Vacation useless
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Document writing without makefile (Photo credit: Wikipedia)[/caption]
As many people writing using efficient tools, I use [latex]LaTeX[/latex]. I divide my work in chapters, each chapter being written in separate .tex file[1. as explained in wikibooks]. I need an efficient way …
Category: tools Tagged: GNU LaTeX Makefile Writing how to tools
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Distributed reflection (Photo credit: Wikipedia)
Reflection attacks are well known. To explain them, I won’t use Bob and Alice because they are needed in another protocol description . Let’s use French femal names.Let’s say Gertrude wants to attack Thérèse . Gertrude knows that Henriette ‘s computer is online …
Category: network security Tagged: Denial-of-service attack Domain Name System GNU Network Time Protocol
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Gnome-Logo(Photo credit: Wikipedia)
The alternative I use is the icons included in Gnome and KDE …
Category: tools Tagged: Gnome Icon KDE Wikimedia Commons
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changed roots (Photo credit: Wikipedia)[/caption]
The chroot command is quite simple but I almost always forget all the prerequest and post-chroot checks that should be done to have a fully operational chrooted environment.
The, chroot operation consist in changing the apparent root of …
Category: how to Tagged: Chroot Linux
Read MoreOur hero, that we will call John for the rest of this article, has entered a …
Category: Finance Tagged: Business Jurist SARL Société à responsabilité limitée Finance reflections
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Big cloud not computing (Photo credit: Wikipedia)[/caption]
This post should be untitled From cloud computing to big data to fast data.
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Cloud computing (Photo credit: Wikipedia)[/caption]
Once upon a …
Category: maths Tagged: Apache Hadoop BigData Cloud computing Data mining Forecasting MongoDB NoSQL Platform as a service Software as a service SQL reflections
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Keymaker (Photo credit: S n o R k e l)
Category: how to Tagged: Enigmail GNU Privacy Guard KDE Mutt Pretty Good Privacy Public-key cryptography how to tools
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Spools of thread (Photo credit: Wikipedia)
I wanted to use multithreading in R. I'm used to C pthread mechanism, but I want to use some R functions. This functions run independently on separate data, and treatments can take some time.
In short, what I wanted to do is computing 2 …
Category: programming Tagged: C CRAN Multithread POSIX Threads Programming R Threads
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Famous 3D puzzle (Photo credit: Wikipedia)
The question is: what is a puzzle? The answer I prefer is: a riddle whose solution is hard to find but easy to verify. In computer science, it’s used to provide proof-of-work and usually implemented through cryptographic mechanisms. I found versions of cryptographic …
Category: maths Tagged: Cryptographically Generated Address Domain Name System IPv6 Namecoin Proof-of-work system Protocols maths reflections
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