These are my links for 2 ott 2013 through 22 ott 2013:
Digital Attack Map – Digital Attack Map is a live data visualization of DDoS attacks around the globe, built through a collaboration between Google Ideas and Arbor Networks. The tool surfaces anonymous attack traffic data to let users explore historic trends and find reports of outages happening on a given day. [ via https://delicious.com/farmando ]
uProxy – What is uProxy? uProxy is a browser extension that lets users share alternative more secure routes to the Internet. It's like a personalised VPN service that you set up for yourself and your friends. uProxy helps users protect each other from third parties who may try to watch, block, or redirect users’ Internet connections. [ via https://delicious.com/farmando ]
Clustering with JBoss mod_cluster – jboss cluster – JBoss application server tutorials – Mod cluster is an http based load balancer which greatly simplify the setup of an http cluster. It ships as a set of modules which need to be installed on the httpd server and a Service Archive Library (.sar) which needs to be deployed on JBoss AS (It is built-in in JBoss AS 6/7). Compared with the former mod_jk, the new mod_cluster has the great advantage to accept a dynamic configuration of httpd workers. This can be done through an advertise mechanism where all httpd workers communicate lifecycle events (like startup or shutdown) thus leveraging dynamic configuration of nodes.
How to configure mod_cluster with JBoss ? « JBoss – Like mod_jk, mod_cluster is also a httpd based load balancer which uses a communication channel to forward requests from the httpd to one of a set of application server nodes. So the question comes Why mod_cluster ? To answer this question we will let you know few advantages of mod_cluster over mod_jk and other httpd-based load balancers.
These are my links for 6 ago 2012 through 8 ago 2012:
open.NASA – a collaborative approach to open, direct, and transparent communication about your space agency – open.nasa.gov is a collaborative platform for the open government community to share success stories and projects they are working on. The content on this site is written by NASA employees and contractors across the agency. We are excited to highlight the ways that transparency, participation, and collaboration are being embraced by NASA policy, technology, and culture – and the amazing future that becomes possible because of that commitment.
VirtuaLinux – Official WebSite – VirtuaLinux is a Linux meta-distribution that allows the creation, deployment and administration of virtualized clusters with no single point of failure. VirtuaLinux architecture supports disk-less configurations and provides an efficient, iSCSI based abstraction of the SAN. Clusters running VirtuaLinux exhibit no master node to boost resilience and flexibity.
tindie | For Sale – buy & sell homemade gadgets, kits, & parts. Raspberry Pi, Arduino, 3dprinting, and more! As seen on: hackaday, reddit, wired, treehugger, and hackaday (again)
Nginx+PHP(FPM)+MySQL+Memcache+eAccelerator on Debian6 | Qi Yang – I recently rebuild my linux image on Linode, so I have to reinstall the LEMP stack again from ground. Last time was probably more than a year ago, with the help of many tutorials from google. So this time I decide to write what I did step by step for my reference in the future [...]
Magento caching, APC, eAccelerator Memcached, files, sqlite, Vanish, what’s the … happen? | Alex Paradise – Magento is slow! It’s how start most of the article about Magento cache optimization. Yes, Magento is slow and this because of the way the code is written, extreme object oriented. Stackoverflow say “It is written in an Enterprise Java idiom” and there are right. Anyway, we can’t change anything about it and in one side that let us lot of flexibility. So, Magento IS SLOW! And what’s can we do? There is many thing to do, many, many. But the most important one is to work around the cache. I am searching for a cache solution and found so much different stuff like APC, eAccelerator, memcached, tmpfs, varnich, lighthttpd, nginx and so on… I will try to explain the different possibilities if found while my research and finished by the one I will implement[...]
Do you have any tips for making WorldClient run faster?
MySQL-Galera cluster with HAproxy – Sébastien han – When I started working on Open Stack, I had to investigate about the HA of the nova component. Unfortunatly the nova configuration needed a single entry point to connect to the MySQL database. The solution that came to me was to use HAProxy on top of my existing Galera cluster…
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!