Sniffing Threat and Practices in IPv6 Networks

0 IntroductionThe IPv4 protocol suite is vulnerable to a variety of at-tacks ranging frompassword sniffing to denial of serv-ice.Software to carry out most of these attacksis freely avail-able onthe Internet .These vulnerabilities can place the use ofthe Internet or intranet at considerable risk[1 ,2].IPv6 securityisin many ways the same as IPv4 security. The basic mecha-nisms for transporting packets across the network stay mostlyunchanged,and the upper-layer protocols that transport thea…     

Enterprise Information System Architecture Based on Web 2.0

0 IntroductionThe rapid growth of the Internet has greatly changed ourway of sharinginformation,speeded up the pace of in-formation exchange, and most of information systems havebeen built by Webtechnologies with data sharing and exchan-ging via the Internet . Classic Web application models are es-sentially based on positive information producers and passiveusers ,and have basically a non-center and one-way transmis-sion of information. Since early 2005 , a new generation ofWebtechnologies c…