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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 :: Blocking specific network applications with iptables PDF Print E-mail
Written by bibe   
Wednesday, 12 December 2007
Many organizations face a productivity problem with employees who abuse chat programs like MSN Messenger. Some IT departments are instructed to block this kind of traffic for users who either abuse or simply don't require the software. You can block applications like MSN Messenger in your proxy server, but some clients may still have access to the applications, because there are many versions of MSN Messenger in use, making blocking the application with a proxy server difficult. Instead, block MSN Messenger traffic more easily with iptables.
Read more on Linux.com
 
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