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	<title>Zona Visiva</title>
	<atom:link href="http://www.zonavisiva.com/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.zonavisiva.com</link>
	<description>Tutto riguardo al mondo della visualizzazione</description>
	<lastBuildDate>Fri, 02 Dec 2011 15:27:58 +0000</lastBuildDate>
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		<item>
		<title>Creating a Fade Material Transition Effect in 3dsmax</title>
		<link>http://www.zonavisiva.com/2011/12/creating-a-fade-material-transition-effect-in-3dsmax/</link>
		<comments>http://www.zonavisiva.com/2011/12/creating-a-fade-material-transition-effect-in-3dsmax/#comments</comments>
		<pubDate>Fri, 02 Dec 2011 12:12:56 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[grafica 3D]]></category>
		<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[3dsmax]]></category>
		<category><![CDATA[animated materials]]></category>
		<category><![CDATA[animating materials]]></category>
		<category><![CDATA[animating materials in 3dsmax]]></category>
		<category><![CDATA[gradient 3dsmax]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=5352</guid>
		<description><![CDATA[



Choose &#8220;Composite Material&#8221; beetween the 3dsmax material list, and add two material inside it, the base material (wood in this case) and another one over it(gold).



In the opacity channel of the upper material add &#8220;gradient&#8221;



activate auto-keyframe in the timeline and change the parameters as shown in the image.



Go forward with the timeline and change the [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft size-full wp-image-5368" title="fading-material" src="http://www.zonavisiva.com/wp-content/uploads/2011/12/fading-material.jpg" alt="" width="450" height="289" /><br />
<span id="more-5352"></span></p>
<div style="margin-top:30px">
<a href="http://www.zonavisiva.com/wp-content/uploads/2011/12/img1.jpg" rel="lightbox[a]"><img title="img1" src="http://www.zonavisiva.com/wp-content/uploads/2011/12/img1.jpg" alt="" width="365" height="512" /></a><br />
Choose &#8220;Composite Material&#8221; beetween the 3dsmax material list, and add two material inside it, the base material (wood in this case) and another one over it(gold).
</div>
<div style="margin-top:30px">
<a href="http://www.zonavisiva.com/wp-content/uploads/2011/12/img2.jpg" rel="lightbox[a]"><img title="img2" src="http://www.zonavisiva.com/wp-content/uploads/2011/12/img2.jpg" alt="" width="365" height="777" /></a><br />
In the opacity channel of the upper material add &#8220;gradient&#8221;
</div>
<div style="margin-top:30px">
<a href="http://www.zonavisiva.com/wp-content/uploads/2011/12/img3.jpg" rel="lightbox[a]"><img title="img3" src="http://www.zonavisiva.com/wp-content/uploads/2011/12/img3.jpg" alt="" width="361" height="441" /></a><br />
activate auto-keyframe in the timeline and change the parameters as shown in the image.
</div>
<div style="margin-top:30px">
<a href="http://www.zonavisiva.com/wp-content/uploads/2011/12/img4.jpg" rel="lightbox[a]"><img  title="img4" src="http://www.zonavisiva.com/wp-content/uploads/2011/12/img4.jpg" alt="" width="335" height="311" /></a><br />
Go forward with the timeline and change the the parameters again as shown in the image.
</div>
<div style="margin-top:30px">
[video src="http://www.zonavisiva.com/wp-content/uploads/2011/12/fade-material-transition.wmv" autoplay="false" preload="true"]<br />
That&#8217;s all!&#8230;the effect should appear then like this!
</div>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
<enclosure url="http://www.zonavisiva.com/wp-content/uploads/2011/12/fade-material-transition.wmv" length="997399" type="video/asf" />
		</item>
		<item>
		<title>Simple and easy php script to create a dynamic table.</title>
		<link>http://www.zonavisiva.com/2011/09/simpe-and-easy-php-script-to-create-a-dynamic-table/</link>
		<comments>http://www.zonavisiva.com/2011/09/simpe-and-easy-php-script-to-create-a-dynamic-table/#comments</comments>
		<pubDate>Fri, 30 Sep 2011 20:05:56 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[web programing]]></category>
		<category><![CDATA[loop with table php]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[tables with while php]]></category>
		<category><![CDATA[while php]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=255</guid>
		<description><![CDATA[This is a very simple way i have thought to create a dinamyc table, and put it into a &#8220;while&#8221; cycle. Despite other examples i used and i had seen in this there is just to change two numbers.
&#60;table width=&#8221;100%&#8221; border=&#8221;0&#8243; cellspacing=&#8221;3&#8243; cellpadding=&#8221;3&#8243;&#62;
           &#60;?
                    $user_products=dbquery(&#8220;select * from strut where id_user=$user_id&#8221;);
   
     $i=1;
     $max_c=4;
     while($user_pr=mysql_fetch_array($user_products)){
   if($i==$max_c){$i=1;}
                              if($i==1){ ?&#62;  [...]]]></description>
			<content:encoded><![CDATA[<p>This is a very simple way i have thought to create a dinamyc table, and put it into a &#8220;while&#8221; cycle. Despite other examples i used and i had seen in this there is just to change two numbers.</p>
<p><span style="color: #000080;">&lt;table width=&#8221;100%&#8221; border=&#8221;0&#8243; cellspacing=&#8221;3&#8243; cellpadding=&#8221;3&#8243;&gt;</span><br />
<span style="color: #000080;">           &lt;?</span></p>
<p><span style="color: #000080;">                    $user_products=dbquery(&#8220;select * from strut where id_user=$user_id&#8221;);</span><br />
<span style="color: #000080;">   </span><br />
<span style="color: #000080;">     $i=1;</span><br />
<span style="color: #000080;">     $max_c=4;</span><br />
<span style="color: #000080;">     while($user_pr=mysql_fetch_array($user_products)){</span><br />
<span style="color: #000080;">   if($i==$max_c){$i=1;}</span><br />
<span style="color: #000080;">                              if($i==1){ ?&gt;  &lt;tr&gt; &lt;? } ?&gt;</span><br />
<span style="color: #000080;">                              &lt;td style=&#8221;text-align:center&#8221;&gt; &lt;? echo $user_pr[title]; ?&gt;&lt;/td&gt;</span><br />
<span style="color: #000080;">                  </span><br />
<span style="color: #000080;">           &lt;? if($i==$max_c){ ?&gt;  &lt;/tr&gt; &lt;? } ?&gt;</span><br />
<span style="color: #000080;">           &lt;? $i++;  } ?&gt;  </span><br />
<span style="color: #000080;">        </span><br />
<span style="color: #000080;">              &lt;/table&gt;</span></p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>3dsmax scatter tool &#8211; modelling Terzani Lamp Orten&#8217;zia</title>
		<link>http://www.zonavisiva.com/2010/11/3dsmax-scatter-tool-modelling-terzani-lamp-ortenzia/</link>
		<comments>http://www.zonavisiva.com/2010/11/3dsmax-scatter-tool-modelling-terzani-lamp-ortenzia/#comments</comments>
		<pubDate>Sat, 13 Nov 2010 12:28:29 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[grafica 3D]]></category>
		<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[3dsmax scatter]]></category>
		<category><![CDATA[3dsmax tutorials]]></category>
		<category><![CDATA[modelling a lamp with 3dsmax]]></category>
		<category><![CDATA[orten'zia lamp]]></category>
		<category><![CDATA[terzani]]></category>
		<category><![CDATA[terzani lamps]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=237</guid>
		<description><![CDATA[
 We have during our work, a good solution i think to modelling an object like Orten&#8217;zia lamp, by Terzani using 3dsmax scatter tool
This tool is not well known as others in 3dsmax, but in some situations it&#8217;s very useful, and with this is possibile to get shapes that otherwise would be very complicated to solve. [...]]]></description>
			<content:encoded><![CDATA[<div><img class="alignnone" title="Orten'zia lamp - Terzani" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/img4.jpg" alt="" width="355" height="303" /></div>
<p> We have during our work, a good solution i think to modelling an object like <strong>Orten&#8217;zia lamp</strong>, by <strong>Terzani</strong> using <strong>3dsmax scatter tool</strong><span id="more-237"></span><br />
This tool is not well known as others in 3dsmax, but in some situations it&#8217;s very useful, and with this is possibile to get shapes that otherwise would be very complicated to solve. In this case we applied a simple lookalike flower shape, like the one on the real lamp, over a geosphere, and in very few passages we achieved a good result. And it might have been even better with more attempts.</p>
<p><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p1.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p1.jpg" alt="" width="450" height="342" /></a><br />
<em>simple flowere shape, using lines and edit poly<br />
</em></p>
<p style="text-align: left;"><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p2.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p2.jpg" alt="" width="450" height="342" /></a><br />
<em>geosphere<br />
</em></p>
<p><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p3.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p3.jpg" alt="" width="450" height="342" /></a><br />
<em>select scatter<br />
</em></p>
<p><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p4.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p4.jpg" alt="" width="450" height="342" /></a><br />
<em>scatter has effect<br />
</em></p>
<p><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p5.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p5.jpg" alt="" width="110" height="342" /></a><br />
<em>in scatter there are many way to duplicate an object that can change completely the shape. 3dsmax scatter offers a really wide range of possibilities and solutions<br />
</em></p>
<p><a href="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/Lampada_fiori-p6.jpg"><img class="alignnone" title="reapiting object modelling" src="http://www.zonavisiva.com/tutorials/lampada-terzani-tutorial/thumbs/Lampada_fiori-p6.jpg" alt="" width="450" height="342" /></a><br />
<em>Final result.</em></p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to switch from a daily view to a night view in Photoshop</title>
		<link>http://www.zonavisiva.com/2010/10/how-to-switch-from-a-daily-view-to-a-night-view-in-photoshop/</link>
		<comments>http://www.zonavisiva.com/2010/10/how-to-switch-from-a-daily-view-to-a-night-view-in-photoshop/#comments</comments>
		<pubDate>Thu, 28 Oct 2010 10:04:06 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[grafica 2D]]></category>
		<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[blending options photoshop]]></category>
		<category><![CDATA[Hard light filter]]></category>
		<category><![CDATA[hard light photoshop]]></category>
		<category><![CDATA[photoshop tutorials]]></category>
		<category><![CDATA[using filters photoshop]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=226</guid>
		<description><![CDATA[ 
This tutorial show a very quick way to trasform a daily view in a night view with Photoshop&#8230;
The way is very simple:
step1) open the daily picture with photoshop
step2) create a rectangle of a deep blue color
step3) use hard light filter in blending options (applied to the rectangle layer)
step4) change a little bit the color [...]]]></description>
			<content:encoded><![CDATA[<p style="text-align: left;"> <img class="aligncenter" title="night view" src="http://www.zonavisiva.com/tutorials/ps1/night-view.jpg" alt="" width="400" height="530" /><br />
This tutorial show a very quick way to trasform a <strong>daily view</strong> in a <strong>night view</strong> with <strong>Photoshop</strong>&#8230;<br />
<span id="more-226"></span>The way is very simple:</p>
<p>step1) open the daily picture with photoshop</p>
<p>step2) create a rectangle of a deep blue color</p>
<p>step3) use <strong>hard light</strong> filter in <strong>blending options</strong> (applied to the rectangle layer)</p>
<p>step4) change a little bit the color of the filter and the opacity level of it to get the best result</p>
<p><a href="http://www.zonavisiva.com/tutorials/ps1/schema-photoshop.jpg"><img class="aligncenter" title="photoshop schema - hard light" src="http://www.zonavisiva.com/tutorials/ps1/schema-photoshop-thumb.jpg" alt="" width="400" height="561" /></a></p>
]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Modelling furniture with 3dsmax &#8211; Bocca Sofa, Gufram</title>
		<link>http://www.zonavisiva.com/2010/08/modelling-furniture-3dsmax-poltrona-bocca-gufram/</link>
		<comments>http://www.zonavisiva.com/2010/08/modelling-furniture-3dsmax-poltrona-bocca-gufram/#comments</comments>
		<pubDate>Tue, 17 Aug 2010 13:08:53 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[3d]]></category>
		<category><![CDATA[3dsmax modelling]]></category>
		<category><![CDATA[3dsmax tutorials]]></category>
		<category><![CDATA[autodesk 3dsmax]]></category>
		<category><![CDATA[bocca sofa]]></category>
		<category><![CDATA[edit poly]]></category>
		<category><![CDATA[gufran]]></category>
		<category><![CDATA[interior design objects]]></category>
		<category><![CDATA[modelling a sofa with 3dsmax]]></category>
		<category><![CDATA[modelling with 3dsmax]]></category>
		<category><![CDATA[turbo smooth]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=162</guid>
		<description><![CDATA[Here&#8217;s a tutorial that show you, how to model in few steps, organic and complicated shapes with 3dsmax.
Main picture

  
Technical Drawings
STEP1:

Creating Spline
STEP2:

Edit Poly &#8211; Create polygons with cut
STEP3:

Extrude the faces 3-4 times
STEP4:

Symmetry
STEP5:

Start modelling the shape with SCALE
STEP6:

Fix and change the position of some edge
STEP7:

Make the model more precise with the picture behind
STEP8:

Bevel the last [...]]]></description>
			<content:encoded><![CDATA[<p>Here&#8217;s a tutorial that show you, how to model in few steps, organic and complicated shapes with 3dsmax.<br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/bocca.gif"><img title="disegni-tecnici_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/bocca.gif" alt="" /></a><br />Main picture</p>
<p><span id="more-162"></span><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/disegni-tecnici1.jpg"> <img title="disegni-tecnici_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/disegni-tecnici_small.jpg" alt="" width="350" height="235" /> </a><br />
Technical Drawings</p>
<p><strong>STEP1:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-2.jpg"><img title="img-2_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-2_small.jpg" alt="" width="350" height="210" /></a><br />
Creating Spline</p>
<p><strong>STEP2:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-3.jpg"><img title="img-3_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-3_small.jpg" alt="" width="350" height="210" /></a><br />
Edit Poly &#8211; Create polygons with cut</p>
<p><strong>STEP3:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-4.jpg"><img title="img-4_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-4_small.jpg" alt="" width="350" height="210" /></a><br />
Extrude the faces 3-4 times</p>
<p><strong>STEP4:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-5.jpg"><img title="img-5_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-5_small.jpg" alt="" width="350" height="210" /></a><br />
Symmetry</p>
<p><strong>STEP5:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-6.jpg"><img title="img-6_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-6_small.jpg" alt="" width="350" height="210" /></a><br />
Start modelling the shape with SCALE</p>
<p><strong>STEP6:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-7.jpg"><img title="img-7_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-7_small.jpg" alt="" width="350" height="210" /></a><br />
Fix and change the position of some edge</p>
<p><strong>STEP7:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-8.jpg"><img title="img-8_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-8_small.jpg" alt="" width="350" height="210" /></a><br />
Make the model more precise with the picture behind</p>
<p><strong>STEP8:</strong></p>
<p><a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-9.jpg"><img title="img-9_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-9_small.jpg" alt="" width="350" height="210" /></a><br />
Bevel the last face of the sofa, to define better the edge of it &#8211; (this part is a little bit more difficult)</p>
<p><strong>STEP9:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-10.jpg"><img title="img-10_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-10_small.jpg" alt="" width="350" height="210" /></a><br />
Adjust the new faces</p>
<p><strong>STEP10:</strong></p>
<p><a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-11.jpg"><img title="img-11_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-11_small.jpg" alt="" width="350" height="210" /></a><br />
Bevel and adjust again, trying to do the new faces more rounded</p>
<p><strong>STEP11:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-12.jpg"><img title="img-12_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-12_small.jpg" alt="" width="350" height="210" /></a><br />
Some fixing</p>
<p><strong>STEP12:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-13.jpg"><img title="img-13_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-13_small.jpg" alt="" width="350" height="210" /></a><br />
Bevel again</p>
<p><strong>STEP13:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-14.jpg"><img title="img-14_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-14_small.jpg" alt="" width="350" height="210" /></a><br />
Last face added on the side and some fixing</p>
<p><strong>STEP14:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-15.jpg"><img title="img-15_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-15_small.jpg" alt="" width="350" height="210" /></a><br />
TURBO SMOOTH&#8230;and&#8230;</p>
<p><strong>STEP15:</strong><br />
<a href="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-16.jpg"><img title="img-16_small" src="http://www.zonavisiva.com/wp-content/uploads/2010/08/img-16_small.jpg" alt="" width="350" height="210" /></a><br />
Sofa finished!&#8230;ready to render it!&#8230;</p>
]]></content:encoded>
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		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Quello che gli hackers non dicono&#8230;</title>
		<link>http://www.zonavisiva.com/2010/07/quello-che-gli-hackers-non-dicono/</link>
		<comments>http://www.zonavisiva.com/2010/07/quello-che-gli-hackers-non-dicono/#comments</comments>
		<pubDate>Tue, 06 Jul 2010 13:46:01 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Web Design]]></category>
		<category><![CDATA[Attacchi hacker siti web]]></category>
		<category><![CDATA[cross scripting]]></category>
		<category><![CDATA[cross-site scripting]]></category>
		<category><![CDATA[google virus]]></category>
		<category><![CDATA[il tuo computer potrebbe essere esposto a rischi]]></category>
		<category><![CDATA[problemi google virus]]></category>
		<category><![CDATA[programmatori virus]]></category>
		<category><![CDATA[siti attaccati da virus]]></category>
		<category><![CDATA[sql injection]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=115</guid>
		<description><![CDATA[
Nella mia recente di attività di webdesigner, mi sono trovato a far fronte, sempre in maggior quantità, a una serie di attacchi informatici ai siti web che gestisco, provenienti da hacker che lavorano a livello globale e che in assenza di protezioni specifiche purtroppo vanno a successo, e comportano vari problemi, tra cui istallare virus sui [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.zonavisiva.com/wp-content/uploads/2010/07/hacker2601.jpg" rel="lightbox[post-115]" title=""><img class="size-full wp-image-127 alignnone" title="hacker260" src="http://www.zonavisiva.com/wp-content/uploads/2010/07/hacker2601.jpg" alt="" width="300" height="260" /></a><br />
Nella mia recente di attività di webdesigner, mi sono trovato a far fronte, sempre in maggior quantità, a una serie di attacchi informatici ai siti web che gestisco, provenienti da hacker che lavorano a livello globale e che in assenza di protezioni specifiche purtroppo vanno a successo, e comportano vari problemi, tra cui istallare virus sui computer di chi naviga  ed essere considerato virus dai motori di ricerca, che arrivano ad identificare e segnalare i malevoli dopo nemmeno una settimana, e a impedire l&#8217;accesso a chi prova a entrare sui siti esibendo la nota e poco piacevole scritta &#8220;<strong>attenzione, navigando su questo sito il tuo computer potrebbe essere esposto a rischi</strong>&#8220;<strong>.<br />
<span id="more-115"></span></strong></p>
<p>Nulla di così grave in realtà, dovendo altresì affermare però che se non si è assistiti da programmatori esperti ed in grado di conoscere le contromisure, difficile arrivare a una soluzione.<br />
Il programmatore, parlando la stessa lingua dell&#8217;hacker,  è l&#8217;unica figura in grado di rispondere colpo su colpo, &#8220;dialogare&#8221; con gli attacchi, sedersi dall&#8217;altra parte del fiume e vedere se questi hackers il fiume riescono ancora ad oltrepassarlo. Una partita che si gioca colpo su colpo, e più il sito ha prestigio, più alta la posta in gioco, e più cercheranno di attaccare e superare le barriere imposte.<br />
Un sito programmato artigianalmente con poche nozioni di base, nel web attuale, per l&#8217;esperienza che ho avuto soprattutto nell&#8217;ultimo anno, dove i siti della mia scuderia sono stati attaccati su più fronti, ha poca speranza di sopravvivere e di rimanere inviolato.</p>
<p>Visto che il tema secondo me è molto importante, vi cercherò di illustrare insieme al programmatore che collabora con me <strong><a href="http://www.andreainfusino.com" target="_blank">Andrea Infusino</a></strong>, che ha avuto il merito di rendere i siti che gravitano intorno al mio studio molto più sicuri di quanto non lo fossero prima, quali sono i tipi di attacchi che ultimamente si verificano più spesso, in modo da capire meglio di cosa si sta parlando indentificarli meglio e passare poi alle contromisure.</p>
<div><span style="font-size: medium;"><strong>SQL Injection</strong></span></div>
<div><em>L’SQL Injection è una &#8220;iniezione&#8221; di codice SQL che avviene attraverso canali non filtrati dell’applicazione. In particolare si tratta di punti di un programma dove è possibile inviare del codice SQL (codice destinato alla gestione e aggiornamento delle basi di dati) dall’esterno scavalcando operazioni di login e/o autenticazione.</em></div>
<div><em>Questa tecnica si attua somministrando delle particolari stringhe di codice SQL che contengono condizioni sempre vere (secondo la logica booleana) per cui permettono di pilotare l’output e l’input dell’applicazione.</em></div>
<div><em>Per mezzo di questa tecnica è infatti possibile scoprire username, password e in generale tutti i dati presenti nella base di dati SQL-based, allo stesso modo è anche possibile inserire delle credenziali fittizie che l’hacker può sfruttare per entrare nel back office dell’applicazione (di un sito web amministrabile, ad esempio).</em></div>
<div><span style="font-size: medium;"><strong>XSS – Cross-Site Scripting</strong></span></div>
<div><em>Il Cross-Site Scripting è una tecnica di hacker aggio che consente la somministrazione di script esterni, che più semplicemente possiamo definire &#8220;programmi&#8221;, ad un’applicazione. In particolare per mezzo di questa tecnica è possibile far eseguire programmi remoti, di terze parti, per cui per definizione non sicuri e malevoli.</em></div>
<div><em>Grazie a questa tecnica è possibile infatti caricare sul server (upload) files di ogni tipo e che svolgono funzioni di ogni tipo. Sono noti infatti tipi di intrusione che installano dei programmi malevoli che in autonomia sono in grado di scoprire i link in uscita del sito e auto diffondersi in rete, tentando delle sistematiche intrusioni nelle applicazioni correlate alla corrente, con tecniche brute force, denial of service o di flooding.<br />
</em><br />
<strong><span style="font-size: medium;">Il caso di un attacco.</span><br />
</strong>Se a un sito X non vengono adottate sin dalla sua prima stesura adeguate contromisure è suscettibile di entrambi i tipi di attacchi appena brevemente descritti.</div>
<p>In questi casi gli hacker hanno la possibilità di poter installare file e leggere liberamente il database e gli archivi privati del sito, nonché scoprire i dati di accesso del server. In sostanza poter scoprire ogni informazione e anche modificarla.</p>
<p>Questi accessi sono tecnicamente dovuti ad un errato o, come nel nostro caso, un assente filtraggio delle variabili di input GET e POST. Queste variabili non sono altro che dei contenitori dei dati che immette l’utente, ad esempio, compilando un form, iscrivendosi ad una newsletter o scegliendo la lingua del sito.</p>
<p>Per questa ragione bisogna approntare e mettere in esercizio uno script php che filtri tutti i tipi di input, siano essi GET, POST che eventuali url di ingresso. Grazie all&#8217;istallazione di questo script non solo sarà possibile bloccare i tentativi di intrusione, bloccando l’esecuzione delle pagine su cui è stato tentato l’attacco in modo da evitare qualsiasi fuga di informazioni come qualsiasi immissione arbitraria di dati, ma anche poter tracciare l’attività dell’hacker. Più in dettaglio l’attività verrà tracciata per mezzo di parametri inequivocabili come la data di attacco e l’indirizzo IP della macchina, così come della stringa di input usata per tentare l’intrusione.</p>
<p><strong>aricolo a cura di:<br />
</strong><a href="http://www.andreainfusino.com" target="_blank"><strong>Andrea Infusino</strong></a>, <a href="http://www.andreainfusino.com" target="_blank">programmatore php e seo</a></p>
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		<title>The Vincent Parfum &#8211; Part IV &#8211; Alias Design Details</title>
		<link>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-iv-alias-design-details/</link>
		<comments>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-iv-alias-design-details/#comments</comments>
		<pubDate>Wed, 23 Jun 2010 14:10:31 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[alias design details]]></category>
		<category><![CDATA[autodesk alias design]]></category>
		<category><![CDATA[details]]></category>
		<category><![CDATA[tutorial autodesk alias design]]></category>
		<category><![CDATA[tutorial studio tools]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=104</guid>
		<description><![CDATA[Tutorial che mostra alcune delle tecniche di dettaglio  in Autodesk Alias Design, al tempo del tutorial chiamato Studio Tools
This tutorial shows how to add details with Autodesk Alias Design, at the moment of the tutorial the software was called Studio Tools
 
(Video: Watch this video on the post page)
]]></description>
			<content:encoded><![CDATA[<div>Tutorial che mostra alcune delle tecniche di dettaglio  in <strong>Autodesk Alias Design</strong>, al tempo del tutorial chiamato <strong>Studio Tools</strong></div>
<div><em>This tutorial shows how to add details with<strong> Autodesk Alias Design,</strong> at the moment of the tutorial the software was called<strong> Studio Tools</strong></em></div>
<div><strong><em> </em></strong></div>
<div>(Video: Watch this video on the post page)</div>
]]></content:encoded>
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		<title>The Vincent Parfum &#8211; part III &#8211; Alias Design Fillets</title>
		<link>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-iii-alias-design-fillets/</link>
		<comments>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-iii-alias-design-fillets/#comments</comments>
		<pubDate>Wed, 23 Jun 2010 14:09:39 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[autodesk alias design]]></category>
		<category><![CDATA[fillets]]></category>
		<category><![CDATA[tutorial autodesk alias design]]></category>
		<category><![CDATA[tutorial studio tools]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=102</guid>
		<description><![CDATA[Tutorial che mostra alcune delle tecniche di &#8221;fillet&#8221; in Autodesk Alias Design, in particolare come risolvere le criticità e le parti in cui talvolta il fillet fallisce, al tempo del tutorial chiamato Studio Tools
This tutorial shows how to sketch with Autodesk Alias Design, at the moment of the tutorial the software was called Studio Tools
 
(Video: Watch this video on the post [...]]]></description>
			<content:encoded><![CDATA[<div>Tutorial che mostra alcune delle tecniche di &#8221;fillet&#8221; in <strong>Autodesk Alias Design</strong>, in particolare come risolvere le criticità e le parti in cui talvolta il fillet fallisce, al tempo del tutorial chiamato <strong>Studio Tools</strong></div>
<div><em>This tutorial shows how to sketch with<strong> Autodesk Alias Design,</strong> at the moment of the tutorial the software was called<strong> Studio Tools</strong></em></div>
<div><strong><em> </em></strong></div>
<div>(Video: Watch this video on the post page)</div>
]]></content:encoded>
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		<item>
		<title>The Vincent Parfum &#8211; part I &#8211; Alias Design Sketching</title>
		<link>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-i-alias-design-sketching/</link>
		<comments>http://www.zonavisiva.com/2010/06/the-vincent-parfum-part-i-alias-design-sketching/#comments</comments>
		<pubDate>Wed, 23 Jun 2010 13:57:42 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[alias design sketching]]></category>
		<category><![CDATA[autodesk alias design]]></category>
		<category><![CDATA[nurbs]]></category>
		<category><![CDATA[studiotools sketching]]></category>
		<category><![CDATA[tutorial autodesk alias design]]></category>
		<category><![CDATA[tutorial studio tools]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=95</guid>
		<description><![CDATA[Tutorial che mostra alcune delle tecniche di &#8221;sketching&#8221; in Autodesk Alias Design, al tempo del tutorial chiamato Studio Tools
This tutorial shows how to sketch with Autodesk Alias Design, at the moment of the tutorial the software was called Studio Tools
 
(Video: Watch this video on the post page)
]]></description>
			<content:encoded><![CDATA[<div>Tutorial che mostra alcune delle tecniche di &#8221;sketching&#8221; in <strong>Autodesk Alias Design</strong>, al tempo del tutorial chiamato <strong>Studio Tools</strong></div>
<div><em>This tutorial shows how to sketch with<strong> Autodesk Alias Design,</strong> at the moment of the tutorial the software was called<strong> Studio Tools</strong></em></div>
<div><strong><em> </em></strong></div>
<div>(Video: Watch this video on the post page)</div>
]]></content:encoded>
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		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>The Vincent Parfum &#8211; Part II &#8211; Autodesk Alias Design modelling</title>
		<link>http://www.zonavisiva.com/2010/06/the-vincent-parfum/</link>
		<comments>http://www.zonavisiva.com/2010/06/the-vincent-parfum/#comments</comments>
		<pubDate>Wed, 23 Jun 2010 11:47:43 +0000</pubDate>
		<dc:creator>Pietrapania Studio</dc:creator>
				<category><![CDATA[Tutorials]]></category>
		<category><![CDATA[autodesk alias design]]></category>
		<category><![CDATA[modelling with autodesk alias design]]></category>
		<category><![CDATA[modelling with surfaces]]></category>
		<category><![CDATA[nurbs modelling]]></category>
		<category><![CDATA[studiotools modelling]]></category>
		<category><![CDATA[tutorial autodesk alias design]]></category>
		<category><![CDATA[tutorial studio tools]]></category>

		<guid isPermaLink="false">http://www.zonavisiva.com/?p=74</guid>
		<description><![CDATA[Tutorial che mostra la tecnica di modellazione in Autodesk Alias Design, al tempo del tutorial chiamato Studio Tools
This tutorial shows how to model with Autodesk Alias Design, at the moment of the tutorial the software was called Studio Tools
 
(Video: Watch this video on the post page)
]]></description>
			<content:encoded><![CDATA[<div style="text-align: left;">Tutorial che mostra la tecnica di modellazione in <strong>Autodesk Alias Design</strong>, al tempo del tutorial chiamato <strong>Studio Tools</strong></div>
<div style="text-align: left;"><em>This tutorial shows how to model with<strong> Autodesk Alias Design,</strong> at the moment of the tutorial the software was called<strong> Studio Tools</strong></em></div>
<div style="text-align: left;"><strong><em> </em></strong></div>
<div style="text-align: center;">(Video: Watch this video on the post page)</div>
]]></content:encoded>
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