Limitations of IPv4 - The current version of IP (known as version 4 or IPv4) has not changed substantially since Request for Comments (RFC) 791, which was published in 1981. IPv4 has proven to be robust, easily impl (more...)
Features of IPv6 - The following list summarizes the features of the IPv6 protocol:
■ New header format
■ Large address space
■ Stateless and stateful address configuration (more...)
IPv6 Routing Protocols - An IPv6 network consists of multiple IPv6 subnets interconnected by IPv6 routers. To provide reachability to any arbitrary location on the IPv6 network, routes must exist on sending hosts and r (more...)
History of the Internet - During the 1960s, the U.S. Department of Defense’s Advanced Research Projects Agency (ARPA, later called DARPA) began an experimental wide area network (WAN) that spanned the United States (more...)
Internet Protocol - The Internet Protocol (IP) part of the TCP/IP suite is a four-layer model. IP is designed to interconnect networks to form an Internet to pass data back and forth. IP contains addressing and contro (more...)
Transmission Control Protocol - IP has many weaknesses, one of which is unreliable packet delivery—packets may be dropped due to transmission errors, bad routes, and/or throughput degradation. The Transmission Control Proto (more...)
Internet Control Message Protocol ICMP - The Internet Control Message Protocol (ICMP) delivers message packets, reporting errors and other pertinent information to the sending station or source. Hosts and infrastructure equipment use this (more...)
THE WEB APPLICATION ARCHITECTURE - Web application architectures most closely approximate the centralized model of computing, with many distributed “thin” clients that typically perform little more than data presentati (more...)
DNS risks and security - DNS is the Domain Name System. It's a UDP- and TCP-based protocol that listens on port 53. TCP connections are commonly used for zone transfers.
The DNS matches IP addresses to hostname (more...)
FTP with IPv6 - FTP has been designed to work over IPv4 supporting 32-bit addresses. With RFC 2428, "FTP Extensions for IPv6 and NATs," a specification was made that allows FTP to work over IPv4 and IPv6. Duri (more...)
|