1998 c socket programming tutorial share session 5958

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Unformatted text preview: NA can be found in RFC 1700 SAS Institute Inc. Institute Cary, NC SAS/C & C++ Compiler R&D Slide 12 Feb. 1998 C Socket Programming Tutorial SHARE Session 5958 How stuff gets around (routing) U U U TCP/IP packets are routed based on their destination IP address (ex: 10.24.2.123) Packets are passed from one network segment to another by machines called “routers” until the packet arrives at the network segment attached to the host with the destination IP address. Routers that act as gates to larger networks are called gateways. SAS Institute Inc. Institute Cary, NC SAS/C & C++ Compiler R&D Slide 13 Feb. 1998 C Socket Programming Tutorial SHARE Session 5958 Name Resolution Processing U U U U U U Associates an IP address to a “name” (hostname) Structured method of identifying hosts within an internet The Domain Name System (DNS) implements a hierarchical naming scheme which maps names like “mvs.sas.com” to an IP address DNS is implemented by a set of cooperating servers Machines that process DNS requests ar...
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