These are my links for 22 mag 2012 through 25 mag 2012:
Debian Clusters – This site is a series of step-by-step tutorials for anyone interested in building a Debian cluster. It is geared particularly towards those interested in a Debian cluster for education or research purposes. This site is being written alongside the construction of a real Debian cluster at my institute, starting from the ground (basic networking, DHCP, DNS, authentication) up through installation a queue/scheduler and scientific software.
However, these tutorials and guides take some assumptions about users for granted, including basic Linux and Debian knowledge (see the Basic Linux Skills page for clarification and pointers to resources). This is not meant as an introduction to Debian or on how to cluster in general – thankfully, there are plenty of helpful tutorials and guides already in existence on those topics. A basic understanding of Debian and cluster technology will aid in following the tutorials.
About Acme Systems srl – Acme Systems srl is a company specialising in the development of projects, production and assemblage of low-cost microprocessor boards, developed for rapid prototyping in civil and industrial environments.
Acme Systems products are designed to be used with Open Source softwares like Linux, GNU C/C++, Python, Java, etc which are available already configured for free downloading from our site and which are immediately operative on our hardware.
All the Acme Systems products are fully assembled in-site in our headquarter located in Ladispoli a small town 20 km far from Rome, Italy
SSH: What and How | Nettuts+ – Many web developers use SSH (“Secure Shell”) on a daily basis to manage their servers, back up files, work remotely, and a myriad of other tasks. Today, I’ll explain what SSH is, do a brief history review, and, lastly, teach you how to set it up on your remote server or even your local network. Let’s get started!
These are my links for 13 feb 2012 through 15 feb 2012:
Configuring a site-to-site VPN between a Sonicwall and Linux Openswan – Mike A. Leonetti – I have had the fortune of having the challenge to set up a site-to-site (or BOVPN/Branch Office VPN) between a Sonicwall and Openswan. I have searched for other articles that cover this topic and found plenty of information that got me far enough to get some of it working. However, getting the whole thing working took quite some time and I found the guides to be incomplete. So for the sake of even my own remembrance, I will write a mini guide up. Of course I will link all of the guides I've used in a references section.
VPN Site-to-Site Openswan x ASA (Cisco) – House of Linux – Ladies and gentleman, today I am going to demonstrate how to integrate technologies from different platforms. It is possible to use Cisco to integrate with Windows and Linux using protocol such as LDAP. In this case the communication between Linux and ASA (Adaptive Security Appliances) is straight. We will only need to check the cryptography configuration and that it, the connection is established.
PHP and AJAX shell console – Ever wanted to execute commands on your server through php to mimick a shell login? Now you can. I'm calling this file (see below) shell.php and it allows you to run commands on your web server with the same permissions that your php executable has.
These are my links for 5 gen 2012 through 25 gen 2012:
MySQL permissions for backup | OpenConcept Mobile Site – It's a really good idea to use a least-privilege approach to most system administration tasks, and especially automated ones. This post describes using a "read only" MySQL user to handle backing up MySQL databases.
We use mysqldump to backup our databases on a regular basis, using scripts like this one
Tiki is free, both Free Software (as in "Free Speech") and Free of Charge (as in "Free Beer"), and for everyone! It has all the features you need "out-of-the-box": Wikis (like Wikipedia) Forums (like phpBB) Blogs (like WordPress) Articles (like Yahoo News) Image Gallery (like Flickr) Map Server (like Google Maps) Link Directory (like DMOZ) Multilingual (like Babel Fish) Bug Tracker (like Bugzilla) RSS Feeds (like Digg) Free Open Source software (LGPL)
[ via http://www.gpaterno.com/2011/12/23/create-a-secure-intranetextranet-with-tikiwiki-and-securepass/ ]
Create a secure intranet/extranet with TikiWiki and SecurePass – Giuseppe Paternò – [...] In this market segment, there’s still a need for a secure corporate intranet with the need to exchange private information and files. Collaborative places, such as wikis, are perfect solutions to quickly achieve this goal without spending a fortune. I found TikiWiki (http://www.tiki.org/) to suit best in these environments: while extremely easy to use for an end-user through WYSYWIG editor, the complex permission system allow you to set each page access or even show/hide part of the page to a given group of users, which is unique if compared to other solutions [...]