1_Linux_TCPIPv2 - Chapter 1 Linux and TCP/IP Networking...

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TCP/IP Essentials A Lab-Based Approach Chapter 1 Chapter 1 Linux and TCP/IP Linux and TCP/IP Networking Networking Fall 2015
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NYU Polytechnic School of Engineering Slide 2 zjzhao Linux and TCP/IP Implementations The first widely available release of TCP/IP implementation - 4.2 Berkeley Software Distribution (BSD) Unix TCP/IP implementations Solaris FreeBSD Linux
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NYU Polytechnic School of Engineering Slide 3 zjzhao Networking Code Organization Most applications are implemented as User Space processes. Protocols are implemented in the system kernel Socket layer Protocol layer Interface layer Application Processes Socket Layer Protocol Layer TCP, UDP, IP, ICMP, IGMP Interface Layer Ethernet, PPP, Wi-Fi, etc. System Calls Physical Media
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NYU Polytechnic School of Engineering Slide 4 zjzhao Network Daemons and Services Daemon: a process running in the background of the system. Popular network daemons are managed by inetd (most TCP/IP applications) httpd
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