Recuperación de Datos

There are many times that pople usually ask us if we can bring back their data from a hard disk (or any storage device), 'cause they "accidentally" deleted it. Uf!!! that really piss me off.

Surfing I've found a pair of free and open software that might help us to solve that:

• PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from hard disks, CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory. PhotoRec ignores the file system and goes after the underlying data, so it will still work even if your media's file system has been severely damaged or reformatted. 
• TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy. 

Both software can run trough a variety of operating systems, this is the most important issue because there are many programs that only run under Windows platforms consequently FAT and NTFS are only supported file systems, this is something that you don't have to experiment because supported file systems in Photorec and/or TestDisk are:

• BeFS ( BeOS ) 
• BSD disklabel ( FreeBSD/OpenBSD/NetBSD ) 
• CramFS, Compressed File System 
• DOS/Windows FAT12, FAT16 and FAT32 
• Windows exFAT 
• HFS, HFS+ and HFSX, Hierarchical File System 
• JFS, IBM's Journaled File System 
• Linux ext2, ext3 and ext4 
• Linux LUKS encrypted partition 
• Linux RAID md 0.9/1.0/1.1/1.2
  -RAID 1: mirroring
  -RAID 4: striped array with parity device
  -RAID 5: striped array with distributed parity information
  -RAID 6: striped array with distributed dual redundancy information
• Linux Swap (versions 1 and 2) 
• LVM and LVM2, Linux Logical Volume Manager 
• Mac partition map 
• Novell Storage Services NSS 
• NTFS ( Windows NT/2000/XP/2003/Vista/2008/7 ) 
• ReiserFS 3.5, 3.6 and 4 
• Sun Solaris i386 disklabel 
• Unix File System UFS and UFS2 (Sun/BSD/...) 
• XFS, SGI's Journaled File System
   

Need more details?? 
You can download for free here.

Referencia de IPTABLES

A petición del compañero spark pues les dejo una referencia de IPTABLES, la pueden descargar de aquí.

Ojo, no es la que yo usé cuando aprendí, sin embargo es muy buena, ya la revisé. 

Curso Avanzado de Redes con Tecnología Cisco

Como es acostumbrado aquí dejo el material del curso avanzado de redes con tecnología cisco impartido por mi en las instalaciones de cluster.

Si alguien tiene algún comentario por favor postearlo.

Si alguien más desea descargar el material, sépase que no tiene las prácticas, únicamente tiene un caso de integración que deberá resolverse al final de este módulo.

El material puede ser descargado de aquí.

Linux Ebooks

Hi folks, in my inbox I have a new email from tips-linux.net team, sincerely it's kind of weird 'cause the whole email body says "You might find useful these books", so the list shown below is being displayed:

• Pro bash programming.
• Expert shell scripting.
• Beginning linux command line.
• Bash pocket reference.
• Linux command-line and shell-scripting bible.

Finally a big acknowledge to our friends from tips-linux.net, today there's no original source 'cause as I said, I've received it into my inbox.

I hope somebody could find this helpful.

Material del Curso de Redes con Tecnología Cisco

Hola a todos, aquí les dejo los enlaces para que puedan descargar las diapositivas de lo que hasta el momento hemos visto en el curso de redes.
De momento sólo subiré las diapositivas, las prácticas se las pasaré en horas del curso. 

Material de descarga aquí. 

Neuroimaging research in Debian

OMG, surfing the web I found this interesting article, I didn't know the fact that debian had a branch dedicated to develop dedicated to neuroimaging, it's really surprising...

Debian 6.0 “squeeze” will be the first GNU/Linux distribution release ever to offer comprehensive support for magnetic resonance imaging (MRI) based neuroimaging research. It comes with up-to-date software for structural image analysis (e.g. ants), diffusion imaging and tractography (e.g. mrtrix), stimulus delivery (e.g. psychopy), MRI sequence development (e.g. odin), as well as a number of versatile data processing and analysis suites (e.g. nipype). Moreover, this release will have built-in support for all major neuroimaging data formats.

Please see the Debian Science and Debian Med task pages for a comprehensive list of included software and the NeuroDebian webpage for further information.

NeuroDebian at the Society for Neuroscience meeting 2010

The NeuroDebian team will run a Debian booth at the Society for Neuroscience meeting (SfN2010) that will take place November 13-17 in San Diego, USA. The annual meeting of the Society for Neuroscience is one of the largest neuroscience conferences in the world, with over 30,000 attendees. Researchers, clinicians, and leading experts discuss the latest findings about the brain, nervous system, and related disorders.

Original source is here.

Nagios/Centreon: Tutorials and Documentation

Aquí dejo una página que contiene una excelente documentación sobre los sistemas de monitoreo que yo conozco y he usado: Nagios, Centreon y Cacti.
Hago la aclaración que esta documentación está en francés y de momento no voy a traducirla, si alguien ocupa ayuda con la traducción de alguno postee un comentario y veremos la forma de ayudarlo a traducirlo.


Well for those whose don't speak spanish nor french, I share this link to Centreon, Nagios and Cacti documentation, I already took a review about it and I can tell you that is really a good documentation. By the way I also tell you that I'm not planning to translate this docs to Spanish nor English, because I'm already working but if anyone needs help to start translating just post it and I'll try to find a way to help him.
 

You can find a couple of links here:
http://blog.nicolargo.com/nagios-tutoriels-et-documentations
http://www.regis-senet.fr/publications/systeme-exploitation/supervision_reseau.rar