This is my personal Web Site, here you will find some IT related information based on my experience. I'm an Italian Electronic Engineer with more than 20 years of experience in the fields of IT management, Network and Unix System Administration, Telecommunications and Digital Electronics.

Cisco Network Emulation with GNS3 in a Docker container

GNS3 is a fantastic piece of software, it glues together different open source software and allows to emulate a network that includes Cisco routers (using real Cisco firmware), Cisco switches (using IOU, Cisco IOS on Unix), Cisco ASA and any other devices that can run on Qemu or Virtual Box emulator.

It also allows to connect the virtual network to the physical network, it is possible to access Internet in the emulated world and vice-versa. GNS3 is available on Windows, Mac OSX and on Linux, but it shines on Linux because, to use IOU, if you are not on Linux you need a Linux virtual machine running on VirtualBox.

But, because GNS3 glues together many moving parts, it can be troublesome to install everything and to have everything working seamlessly, for this reason i created a Docker image with everything installed, functioning and ready to be used on Linux (or in a Linux virtual machine running in Windows or Mac OSX).

Docker is another fantastic piece of software that, together with CoreOS and other cloud orchestration projects, like Google's Kubernetes, is one of the building blocks for the incoming Cloud Revolution.
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Microsoft Exchange: complex and dangerous by design

I am not a fan of Microsoft products, I don't like their complexity and the "dangerous by design" philosophy; recently I switched company and I am involved in implementing a data center for a public institution based primary on Microsoft Technology. One of this product is Microsoft Exchange; after many years of Unix System Management experience I didn't believe how flawed Exchange was until I red by myself the official Microsoft Exchange documentation (Microsoft Exchange Server 2003 Resource Kit).
Some items that really surprised me are the followings:
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Fighting Spam

The increase of Spam is a trend that started few years ago and it is continuously expanding, but to fight it there is plenty of good Open Source software. To use it effectively, anyway, it is needed a good knowledge of how spam floods our inboxes.

How spammers collect email addresses

The most used address gathering technique is using virus and spyware software that, without user awareness, gather email addresses from Outlook (or other email software) address-books and send this information to the spammers. Another popular address gathering technique is that of using web spiders to collect email addresses from web pages and newsgroups.
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My italian podcast "Notizie Digitali" is nr. 2

iTune top 10Thank you very much to the listeners of my italian language podcast "Notizie Digitali" (Digital News), you have been so many that my show has reached the second position in the "Top 10" of the italian iTunes Music Store.
For me this is a great and unespected result. I never expected to see that in so short time I was able to be head to head with the briallant journalists of "La Repubblica" and with the italian podcast pioneers like "Radio NK" and "Toilettecast" or with the very popular italian singer Max Pezzali.
This success will push me to improve my show, but will also create some problems; the first one is that the available bandwidth with the hosting company is not enough.


My first podcast is online

My first podcast is online. It is in Italian langage (my mother tongue language), his title is "Notizie Digitali" ("Digital News") and it is available on www.audiocast.it.
The content of the podcast is technological news that, in my opinion, are really important. Few weeks ago I registered the domain audiocast.it with the purpose of using it for publishing my podcasts and to put there informations and links on how to make and listen to podcasts.
Everything, however, is in italian language.


Improving english with podcasts

English is not my mother tongue language so I tried to learn it, possibly having fun in the process. At the beginning there was no fun, I studied it in high school but I didn't have occasions to practice it, so it was quite boring. Later, when I moved to the University of Ancona to study Electronic Engineering, I found that computer/software related documentation and some textbooks were available only in English. Later, when I starded working in a big corporation, I was forced to use english to communicate with non Italian speaking collegues, customers and suppliers.

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Linux/AS400: download and convert database files from ebcdic to ascii and excel

I was involved in trasferring data from an AS/400 and to do a minimal datawarehouse, loading that data on an Oracle database. The datawarehouse system was my responsability, the AS/400 was managed by another group located in another city. The AS400 database had packed and zoned fields.

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Tools for Unix System Administrators

This is an uncomplete list of freeware Unix programs I have used for about ten years and that I continue to recommend with the same entusiasm I had when I installed them for the first time on Sun Solaris and SunOs machines.

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My first Netscape

My first Netscape
At the time it wasn't possible (at least in Italy) to legitimely have an internet connection from home. At the end of 1993 i signed my first subscription to Galactica, it was a BBS with telnet, ftp access and usenet newsgroups imported as Fidonet Areas. It was funny to have internet access from home, but wasn't possible to use Mosaic. To navigate on the web i waited until the first months of 1994 when a provider with full SLIP internet access was born here in Italy; it was Inrete in Turin. The first programs I used to navigate were lynx and Mosaic; I really impressed my friends with my linux system and Mosaic. In the Fall of 1994 I discovered Netscape and its ability to display a page before it was fully loaded; immediately the perceived speed increased dramatically.

My technical bookshelf

I think good books are the most important thing to put in your own professional toolbox.
All the books listed here are my own books, often buyed after suggestions by someone in the online community. Unfortunately part of the books listed here are a bit outdated.

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