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However , this and similar e-mail nonrepudiation programs are controversial because crackers and spammers can use them to gather private information from unsuspecting e-mail recipients . As his life and lyrics repeatedly reveal , there are ways to retain our dignity and ethics in a world where our very foundations — family , religion , job security , gender roles — quake beneath our feet . Snort runs on any modern operating system ( including Windows and Linux ) , but some consider it to be complicated to operate . Learn about customer loyalty and satisfaction , marketing , metrics and advice on the best ways to retain customers in this topic section . Home page : The Cluster Command and Control ( C3 ) tool suiteThis is the project page for The Cluster Command and Control ( C3 ) tool suite , which implements a number of command line based tools that have been shown to increase system manager scalability by reducing time and effort to operate and manage the cluster . TCI ’ s newest partner , the University College of Citizenship and Public Service , has helped broaden TCI ’ s community reach and promote climate change action as active citizenship . Gnutella is a system in which individuals can exchange files over the Internet directly without going through a Web site in an arrangement sometimes described as peer-to-peer ( here meaning " person-to-person " ) . Although Gnutella and its variants have incurred the wrath of some musicians and the music industry , the defenders of the peer-to-peer approach view it as a new movement that frees individuals to exchange information with each other directly without the supervision and restrictions of brokering Web sites or other third-parties . Authors may also retain the rights to their books , instead of ceding them to a publisher .