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<channel>
	<title>Pinguino Press</title>
	<atom:link href="http://www.polosur.org/blog/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.polosur.org/blog</link>
	<description>El mundo que me interesa</description>
	<lastBuildDate>Sun, 21 Feb 2010 15:55:35 +0000</lastBuildDate>
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			<item>
		<title>Impresora Eco</title>
		<link>http://www.polosur.org/blog/2010/02/impresora-eco/</link>
		<comments>http://www.polosur.org/blog/2010/02/impresora-eco/#comments</comments>
		<pubDate>Sun, 21 Feb 2010 15:55:35 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Medio Ambiente]]></category>
		<category><![CDATA[Webs Recomendadas]]></category>
		<category><![CDATA[curiosidades]]></category>
		<category><![CDATA[hardward]]></category>
		<category><![CDATA[impresora]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=583</guid>
		<description><![CDATA[Vídeo de impresora ecologica]]></description>
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<p>Visto en  http://www.nopuedocreer.com</p>
<p>Para los que aun viven anclados en el mundo analógico y que necesitan sentir el papel en las manos por que si no su contenido no puede ser asimilado por el cerebro&#8230;</p>
<p>Al menos usadlo (el cerebro) y ahorrad papel.</p>
<p>Impresora eco.</p>
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		</item>
		<item>
		<title>DHCP: cuales son las ips asignadas</title>
		<link>http://www.polosur.org/blog/2010/01/dhcp-cuales-son-las-ips-asignadas/</link>
		<comments>http://www.polosur.org/blog/2010/01/dhcp-cuales-son-las-ips-asignadas/#comments</comments>
		<pubDate>Mon, 25 Jan 2010 09:34:33 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[Notas rapidas]]></category>
		<category><![CDATA[Software]]></category>
		<category><![CDATA[Software Libre]]></category>
		<category><![CDATA[sysadmin]]></category>
		<category><![CDATA[configuración]]></category>
		<category><![CDATA[dhcp]]></category>
		<category><![CDATA[ip]]></category>
		<category><![CDATA[servidores]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=580</guid>
		<description><![CDATA[Como identificar las direcciónes ip asignadas por el servidor dhcp]]></description>
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			</a>
		</div>
<p>Ejecutando el comando</p>
<blockquote><p>cat /var/lib/dhcp/dhcpd.leases  ó /var/lib/dhcp3/dhcpd.leases</p></blockquote>
<p>según sea el caso, es posible identificar cuantas, cuales, y a que maquinas ha asignado el servidor dhcp direciónes ip.</p>
<p>Nota: Gracias a la gente de la lista de usuarios debian en español <img src='http://www.polosur.org/blog/wp-includes/images/smilies/icon_wink.gif' alt=';-)' class='wp-smiley' /> </p>
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		</item>
		<item>
		<title>La frase del dia.</title>
		<link>http://www.polosur.org/blog/2009/12/la-frase-del-dia-2/</link>
		<comments>http://www.polosur.org/blog/2009/12/la-frase-del-dia-2/#comments</comments>
		<pubDate>Sun, 27 Dec 2009 20:58:03 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Sin categoría]]></category>
		<category><![CDATA[google]]></category>
		<category><![CDATA[pensamientos]]></category>
		<category><![CDATA[personajes]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=577</guid>
		<description><![CDATA[Una mas de esas frases que me han gustado, según XL Semanal esta la ha dicho Marissa Mayer]]></description>
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			</a>
		</div>
<blockquote><p>Haz algo para lo que no estés preparado. En el peor de los casos, aprenderás acerca de tus limitaciones</p>
<p><a href="http://es.wikipedia.org/wiki/Marissa_Mayer">Marisa Mayer</a></p></blockquote>
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		</item>
		<item>
		<title>Cual es el fingerprint de una maquina?</title>
		<link>http://www.polosur.org/blog/2009/12/cual-es-el-fingerprint-de-una-maquina/</link>
		<comments>http://www.polosur.org/blog/2009/12/cual-es-el-fingerprint-de-una-maquina/#comments</comments>
		<pubDate>Mon, 21 Dec 2009 14:32:20 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Notas rapidas]]></category>
		<category><![CDATA[Software]]></category>
		<category><![CDATA[Software Libre]]></category>
		<category><![CDATA[sysadmin]]></category>
		<category><![CDATA[configuración]]></category>
		<category><![CDATA[Debian]]></category>
		<category><![CDATA[Fingerprint]]></category>
		<category><![CDATA[Forensic Science]]></category>
		<category><![CDATA[Security]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=573</guid>
		<description><![CDATA[Como obtener el fingerprint de un servidor ssh]]></description>
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			</a>
		</div>
<p style="text-align: left;" mce_style="text-align: left;">Todo administrador de red/sistemas medianamente preocupado por la seguridad, debe tener un lista actualizada de los <a mce_href="http://en.wikipedia.org/wiki/Public_key_fingerprint" href="http://en.wikipedia.org/wiki/Public_key_fingerprint">fingerprint</a> del servicio <a mce_href="http://es.wikipedia.org/wiki/Ssh" href="http://es.wikipedia.org/wiki/Ssh">ssh</a> de cada una de las maquinas que administra, esta información aparece la primera vez que conectamos con una maquina a través de ssh, pero como obtener este dato antes de la primera conexión o en cualquier otro momento?</p>
<p style="text-align: left;" mce_style="text-align: left;">Usando este comando.</p>
<p style="text-align: left;" mce_style="text-align: left;">
<p style=""><b><i>ssh-keygen -lf /etc/ssh/ssh_host_rsa_key.pub</i></b></p>
<div class="zemanta-img zemanta-action-dragged">
<div>
<dl class="wp-caption alignright">
<dt class="wp-caption-dt"><a href="http://www.flickr.com/photos/12836528@N00/2422430207"><img src="http://farm3.static.flickr.com/2371/2422430207_01b2dcba11_m.jpg" alt="Fingerprints" title="Fingerprints"></a></dt>
<dd class="wp-caption-dd zemanta-img-attribution">Image by <a href="http://www.flickr.com/photos/12836528@N00/2422430207">kevindooley</a> via Flickr</dd>
</dl>
</div>
</div>
<p style="text-align: left;" mce_style="text-align: left;"></p>
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		<item>
		<title>Los nuevos diarios</title>
		<link>http://www.polosur.org/blog/2009/12/los-nuevos-diarios/</link>
		<comments>http://www.polosur.org/blog/2009/12/los-nuevos-diarios/#comments</comments>
		<pubDate>Sun, 20 Dec 2009 18:57:59 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Internet]]></category>
		<category><![CDATA[Webs Recomendadas]]></category>
		<category><![CDATA[Android]]></category>
		<category><![CDATA[Online Communities]]></category>
		<category><![CDATA[Twitter]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=567</guid>
		<description><![CDATA[Algunas notas sobre las nuevas utilidades del diario el sur.]]></description>
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			</a>
		</div>
<p>Últimamente he visto un cambio significativo el El diario El Sur, su versión impresa a cambiando hace pocas semanas el formato y en su versión digital he encontrado algunas utilidades que han llamado mi atención.</p>
<p>1. Sur.tv (<a href="http://www.surtv.es">http://www.surtv.es</a>)</p>
<p>Aparte del hecho que en El Sur se han percatado que el vídeo es la forma de información que mas gusta a los navegantes, la interfaz que han desarrollado para este sitio web parece muy interesante, ya que han acotado zonas especificas para cada tipo de información, cuando se ven los videos a pantalla completa se aprecia realmente su funcionalidad.</p>
<p><img class="aligncenter size-medium wp-image-568" title="surtv" src="http://www.polosur.org/blog/wp-content/uploads/2009/12/surtv-300x187.png" alt="surtv" width="300" height="187" /></p>
<p>2. Sur Movil. <a href="http://www.diariosur.es/20091218/sociedad/movil-nunca-20091218.html">Noticia sobre el tema</a></p>
<p>Han desarrollado una aplicación especifica para IPhone y para los démas su site esta adaptado convenientemente, extraño me parece que no hay nada espcifico para <a class="zem_slink" title="Android (operating system)" rel="wikipedia" href="http://en.wikipedia.org/wiki/Android_%28operating_system%29">Android</a>.</p>
<p>3. Twiiter <a href="http://twitter.com/diario_sur">http://twitter.com/diario_sur</a></p>
<p>Si les sigues en twitter estarás permanente informado, eso si todos los twitts son enlaces a sus noticias en la web, falta un poco de tratamiento humano, opiniones y demás cosas que hacen de twiiter un medio social, y no un simple escaparate para recoger enlaces y por tanto lectores.</p>
<p>4. La sección de fotos.. <a href="http://www.diariosur.es/multimedia/fotos/">http://www.diariosur.es/multimedia/fotos/</a></p>
<p>Fatal&#8230; las fotos tardan una eternidad en cargarse esto hay que mejorarlo señores del sur</p>
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		</item>
		<item>
		<title>TED: Ideas worth spreading</title>
		<link>http://www.polosur.org/blog/2009/12/ted-ideas-worth-spreading/</link>
		<comments>http://www.polosur.org/blog/2009/12/ted-ideas-worth-spreading/#comments</comments>
		<pubDate>Mon, 14 Dec 2009 09:40:57 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Astronomia]]></category>
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		<guid isPermaLink="false">http://www.polosur.org/blog/?p=562</guid>
		<description><![CDATA[TED: Ideas worth spreading]]></description>
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<p>Las charlas TED son de lo mejor que hay en Internet, no entiendo por que no están mas difundidas, creo que se debería hablar de ellas tanto o mas que de facebook, twitter, <a class="zem_slink" title="Google" rel="homepage" href="http://google.com">google</a>, o <a class="zem_slink" title="YouTube" rel="homepage" href="http://www.youtube.com/">youtube</a>.</p>
<p>Pero claro la charlas TED no son simplemente Divertidas, son alimento para intelecto para el espíritu y para cerebro.</p>
<p>Invito a todo<span> &#8230;</span><span> aquel que le llame la atención estas charlas a difundirlas entre sus &#8220;amigos&#8221; &#8230;</span></p>
<p>No dejes de visitar semanalmente <a href="http://www.ted.com">http://www.ted.com</a></p>
<p><object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="446" height="326" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"><param name="allowFullScreen" value="true" /><param name="wmode" value="transparent" /><param name="bgColor" value="#ffffff" /><param name="flashvars" value="vu=http://video.ted.com/talks/dynamic/ChrisAnderson_2002-medium.flv&amp;su=http://images.ted.com/images/ted/tedindex/embed-posters/ChrisAnderson-2002.embed_thumbnail.jpg&amp;vw=432&amp;vh=240&amp;ap=0&amp;ti=211&amp;introDuration=16500&amp;adDuration=4000&amp;postAdDuration=2000&amp;adKeys=talk=chris_anderson_shares_his_vision_for_ted;year=2002;theme=not_business_as_usual;theme=to_boldly_go;theme=tales_of_invention;event=TED2002;&amp;preAdTag=tconf.ted/embed;tile=1;sz=512x288;" /><param name="src" value="http://video.ted.com/assets/player/swf/EmbedPlayer.swf" /><param name="bgcolor" value="#ffffff" /><param name="allowfullscreen" value="true" /><embed type="application/x-shockwave-flash" width="446" height="326" src="http://video.ted.com/assets/player/swf/EmbedPlayer.swf" flashvars="vu=http://video.ted.com/talks/dynamic/ChrisAnderson_2002-medium.flv&amp;su=http://images.ted.com/images/ted/tedindex/embed-posters/ChrisAnderson-2002.embed_thumbnail.jpg&amp;vw=432&amp;vh=240&amp;ap=0&amp;ti=211&amp;introDuration=16500&amp;adDuration=4000&amp;postAdDuration=2000&amp;adKeys=talk=chris_anderson_shares_his_vision_for_ted;year=2002;theme=not_business_as_usual;theme=to_boldly_go;theme=tales_of_invention;event=TED2002;&amp;preAdTag=tconf.ted/embed;tile=1;sz=512x288;" bgcolor="#ffffff" wmode="transparent" allowfullscreen="true"></embed></object></p>
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		<title>Como hacer un vídeo HD para YouTube</title>
		<link>http://www.polosur.org/blog/2009/12/557/</link>
		<comments>http://www.polosur.org/blog/2009/12/557/#comments</comments>
		<pubDate>Sun, 13 Dec 2009 20:21:48 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Internet]]></category>
		<category><![CDATA[curiosidades]]></category>
		<category><![CDATA[video]]></category>
		<category><![CDATA[videos]]></category>
		<category><![CDATA[youtube]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=557</guid>
		<description><![CDATA[Vídeo muy curioso sobre vídeos HD en YouTube]]></description>
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<p>Estaba yo leyendo la <a title="Documentación de YouTube" href="http://help.youtube.com/support/youtube/">documentación de YouTube </a>sobre la calidad de los vídeos y todas esas cosas aburridas que nadie lee, y estando en ello, he encontrado un vídeo donde explican claramente como hacer que un vídeo se <a title="Alta definición" href="http://es.wikipedia.org/wiki/Alta_definici%C3%B3n">HD</a> para YouTube.</p>
<p>Materiales.</p>
<p>1.) Una <a href="http://es.wikipedia.org/wiki/Guitarra_electrica">Guitarra Eléctrica</a></p>
<p>2.) Un Pistola.</p>
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		<title>Localización</title>
		<link>http://www.polosur.org/blog/2009/12/localizacion/</link>
		<comments>http://www.polosur.org/blog/2009/12/localizacion/#comments</comments>
		<pubDate>Fri, 04 Dec 2009 08:20:32 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Internet]]></category>
		<category><![CDATA[Notas rapidas]]></category>
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		<category><![CDATA[mapas]]></category>
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		<guid isPermaLink="false">http://www.polosur.org/blog/2009/12/i-love/</guid>
		<description><![CDATA[Parte del post sobre tendencias para el 2010 de Mashable]]></description>
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<div style="border: 0px none; overflow: auto; margin-top: 25px; min-height: 50px; font-size: 11px; width: 456px; line-height: 16.8px; float: none;"><strong>Location, location, location</strong>Fueled by the ubiquity of GPS in modern smartphones, location-sharing services like <a style="text-decoration:underline; color: #2388BD;" href="http://www.foursquare.com/" target="new">Foursquare</a>, <a style="text-decoration:underline; color: #2388BD;" href="http://gowalla.com/" target="new">Gowalla</a>, <a style="text-decoration:underline; color: #2388BD;" href="http://brightkite.com/" target="new">Brightkite</a> and <a style="text-decoration:underline; color: #2388BD;" href="http://www.google.com/latitude" target="new">Google Latitude</a> are suddenly in vogue.</p>
<p>As I ruminated in this column two weeks ago, <a style="text-decoration:underline; color: #2388BD;" href="http://www.cnn.com/2009/TECH/11/19/cashmore.foursquare/">Foursquare and its ilk</a> may become the breakout services of the year &#8230; provided they&#8217;re not crushed by the addition of location-based features to Twitter and Facebook.</p>
<p>What&#8217;s clear is that location is not about any singular service; rather, it&#8217;s a new layer of the Web. Soon, our whereabouts may optionally be appended to every Tweet, blog comment, photo or video we post.</p></div>
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		<title>Un duro y largo invierno.</title>
		<link>http://www.polosur.org/blog/2009/11/un-duro-y-largo-invierno/</link>
		<comments>http://www.polosur.org/blog/2009/11/un-duro-y-largo-invierno/#comments</comments>
		<pubDate>Sun, 29 Nov 2009 18:27:34 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Dia a dia]]></category>
		<category><![CDATA[musica]]></category>
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		<category><![CDATA[youtube]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=550</guid>
		<description><![CDATA[Luz Casal - Sentir]]></description>
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		<title>El problema de los aliases</title>
		<link>http://www.polosur.org/blog/2009/11/el-problema-de-los-aliases/</link>
		<comments>http://www.polosur.org/blog/2009/11/el-problema-de-los-aliases/#comments</comments>
		<pubDate>Mon, 16 Nov 2009 10:03:58 +0000</pubDate>
		<dc:creator>Osro</dc:creator>
				<category><![CDATA[Software]]></category>
		<category><![CDATA[sysadmin]]></category>
		<category><![CDATA[aliases]]></category>
		<category><![CDATA[configuración]]></category>
		<category><![CDATA[correo]]></category>
		<category><![CDATA[Debian]]></category>
		<category><![CDATA[exim4]]></category>
		<category><![CDATA[linux]]></category>

		<guid isPermaLink="false">http://www.polosur.org/blog/?p=540</guid>
		<description><![CDATA[
			
				
			
		
En algunas ocasiones me he encontrado con un problema en el uso de aliases, a pesar de que configuraba correctamente el alias en &#8221;/etc/aliases&#8221; de la forma
 root: miusuario@midominio.com

los mensajes que se enviaban a root salían en dirección a root@localhost.localdomain de forma que nunca llegaban a su destino.
En algún momento configurando exim4 con:
 dpkg-reconfigure exim4-config
obtuve [...]]]></description>
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<p>En algunas ocasiones me he encontrado con un problema en el uso de aliases, a pesar de que configuraba correctamente el alias en &#8221;<em>/etc/aliases</em>&#8221; de la forma</p>
<p><strong> root: miusuario@midominio.com</strong></p>
</p>
<p>los mensajes que se enviaban a root salían en dirección a root@localhost.localdomain de forma que nunca llegaban a su destino.</p>
<p>En algún momento configurando exim4 con:</p>
<p><strong> dpkg-reconfigure exim4-config</strong></p>
<p>obtuve un error como este:</p>
<p> <strong>hostname &#8211;fqdn did not return a fully qualified name, dc_minimaldns will not<br />
 work. Please fix your /etc/hosts setup.<br />
 Stopping MTA for restart:hostname &#8211;fqdn did not return a fully qualified name, dc_minimaldns will not<br />
 work. Please fix your /etc/hosts setup.<br />
 exim4_listener.<br />
 Restarting MTA: exim4</strong></p>
<p>lo que me llevo a comprobar el fichero &#8221;<em>/etc/hosts&#8217;</em>&#8216; y fijarme que efectivamente la ip del host local estaba configurada de esta forma:</p>
<p><strong> xxx.xxx.xxx.xxx   localhost</strong></p>
<p>al modificar la linea y dejarla asi:</p>
<p><strong> xxx.xxx.xxx.xxx  localhost.localdomain localhos</strong>t</p>
<p>y reiniciar exim4 no obtuve ningún error de forma que probé enviar un mensaje al root y en esta ocasión el mensaje fue directo al buzón correcto.</p>
<p><strong>&#8221;&#8217; Ya se lo que pasa con el aliases&#8221;&#8217;</strong></p>
<p>Entradas relacionadas:  </p>
<p><a href="http://www.polosur.org/blog/2009/01/05/exim4-dominios-locales">http://www.polosur.org/blog/2009/01/05/exim4-dominios-locales</a></p>
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