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atwork di Alberto Turelli - soluzioni software & web.

  • Certificazioni GNU/Linux LPIC-1 e LPIC-2
  • Certificazioni MySQL 5.0 Developer e DBA

  • Consulenza relativa a GNU/Linux (Debian in particolare) e al software libero
  • Migrazione di server, workstation e reti da Windows a GNU/Linux
  • Installazione, configurazione e manutenzione dei seguenti servizi su piattaforma GNU/Linux:
    • Server web (Apache, Tomcat)
    • Server database (MySQL)
    • Server email (Postfix, Qmail, Courier) con filtri antispam (Spamassassin) e antivirus (ClamAV)
  • Configurazione ed amministrazione di reti GNU/Linux e di reti miste (Windows, GNU/Linux, BSD, Unix, Mac OS X)
  • Progettazione e realizzazione di database e applicativi web-based (HTML/CSS/Javascript, PHP, JSP e MySQL)
  • Sviluppo software in Java
  • Installazione, configurazione e manutenzione portali con Joomla! e Mambo
  • Corsi GNU/Linux: introduzione, amministrazione del sistema, server, desktop, sicurezza
  • Corsi per certificazioni: GNU/Linux (LPIC-1 e LPIC-2) e MySQL (Core, Professional, 5.0 Developer e 5.0 DBA)

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Linux.com :: CLI Magic: Bash complete
Written by bibe   
Tuesday, 09 May 2006
The auto complete feature of the Bourne Again SHell makes bash one of the most loved and newbie-friendly Linux shells. Just by pressing the Tab key you can complete commands and filenames. Press the Tab key twice and all files in the directory get displayed. But you can do more with autocomplete -- such as associating file types with applications, and automatically designating whether you're looking for directories, text, or MP3 files. With simple commands such as complete and the use of Escape sequences, you can save time and have fun on the command line.
Read more on Linux.com
 
nixCraft :: Linux Setting processor affinity for a certain task or process
Written by bibe   
Tuesday, 09 May 2006
When you are using SMP (Symmetric MultiProcessing) you might want to override the kernel’s process scheduling and bind a certain process to a specific CPU(s).
But what is CPU affinity?
CPU affinity is nothing but a scheduler property that “bonds” a process to a given set of CPUs on the SMP system. The Linux scheduler will honor the given CPU affinity and the process will not run on any other CPUs.
Read more on nixCraft
 
OSWeekly :: How-To: Compile a Linux Kernel Main Text (Optional):
Written by bibe   
Tuesday, 09 May 2006
According to Wikipedia.org, "the kernel is the core piece of most operating systems. It is a piece of software responsible for the communication between hardware and software components. As a basic component of an operating system, a kernel provides abstraction layers for hardware, especially for memory, processors and communication between hardware and software. It also provides software facilities such as process abstractions and makes interprocess communication easier."
Read more on OSWeekly
 
HowtoForge :: Server Monitoring With munin And monit
Written by bibe   
Tuesday, 09 May 2006
In this article I will describe how to monitor your server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.
Read more on HowtoForge
 
Linux Cult :: A Bit More Chat with Bitlbee
Written by bibe   
Tuesday, 09 May 2006
Bitlbee is a chat system gateway that allows you to connect to several other instant messaging services via a regular IRC client. This offers the advantage that you can manage accounts on chat networks like Jabber, MSN, Yahoo, and AIM/ICQ, all in your favourite IRC client to leverage its own features. In this article we will see how Bitlbee works, and get started with setting up an account on a public server.
Read more on Linux Cult
 
Mad Penguin :: The Pepper Pad: open alternative to Microsoft's Origami
Written by bibe   
Tuesday, 09 May 2006
Once again, Tux has beat the Borg to the punch with a new innovation. This time, it's the Pepper Pad, an ultra-mobile computer designed primarily for video playback and Internet access under circumstances where most notebook computers would be too heavy, and most PDAs would have too small a viewing screen. If you have seen the Origami media blitz (who hasn't!!) and you want a truly open ultra-mobile computer NOW and don't want to wait for Origami, you probably will like the Linux-powered Pepper Pad.
Read more on Mad Penguin
 
Newsforge :: What your choice of Linux distribution says about you [Humor]
Written by bibe   
Tuesday, 09 May 2006
Many Linux newbies -- or wanna-be newbies -- get hung up over the choice of their initial distribution. We here at NewsForge have put a lot of thought into this, and have decided to share our best thinking on the subject in order to help ease you newbies out of the monopoly spread into the Linux world. The most important thing for newbies to consider is this: what does your choice of distributions say about you?
Read more on NewsForge
 
All About Linux :: strace - A very powerful troubleshooting tool for all Linux users
Written by bibe   
Tuesday, 09 May 2006
Tracing the output of a program throws up a lot of data which is not usually available when the program is run normally. And in many instances, sifting through this volume of data has proved fruitful in pin pointing the cause of error.
Read more on All about Linux
 
LinuxWorld :: Linux primer for networkers: Using the sniffer
Written by bibe   
Tuesday, 09 May 2006
A few years back, I used an old 486 running Red Hat Linux and tcpdump to easily diagnose a client's denial-of-service attack, illustrating the benefits of creating a powerful network analysis tool from "scrap" parts. There are plenty of tools to build a similar Windows-based network analyzer, but Linux can run on machines that can't efficiently run Windows.
Read more on LinuxWorld
 
Wired.com :: Everyone wants to 'own' your PC
Written by bibe   
Tuesday, 09 May 2006
You own your computer, of course. You bought it. You paid for it. But how much control do you really have over what happens on your machine? Technically you might have bought the hardware and software, but you have less control over what it's doing behind the scenes.
Using the hacker sense of the term, your computer is "owned" by other people.
Read more on Wired.com
 
Software in Review :: OpenBSD 3.9 review
Written by bibe   
Thursday, 04 May 2006
I skipped writing a review of OpenBSD 3.8 last fall because I was worried that I'd sound like a broken record. Every OpenBSD release is the same: a big pile of small yet significant changes, new tools, and expanded hardware support (especially where it concerns network devices). For as long as I've been doing OpenBSD reviews -- two and a half years now -- this pattern has remained unchanged. OpenBSD 3.9 is more of the same, with the sole exception that this release's enhancements affect desktop users more than in the past few releases.
Read more on Software in Review
 
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