Newcomer Linux Users Group


Information Resources for Beginners

28 May 2008

NETWORKING: This page has Internet links to information on networking.

Network Basics:

  • Computer network
  • Computer Networking
  • Network diagram
  • Local area network (LAN)
  • Wide Area Network (WAN)
  • Network topology
  • Portal:Computer networking
  • An IP address (or Internet Protocol address)
  • Domain Name System (DNS)
  • netmask and subneting.
  • IPv4 Internet Protocol version 4 is used for addressing public and private networks
  • Classful networking is traditional structure of the IP address in IPv4.
  • Classless Inter-Domain Routing replaces the way IPv4 addresses are interpreted.
  • Network Address Translation (NAT)
  • Packet switching
  • IPv6 Internet Protocol version 6 (IPv6) is the designated successor of IPv4.
  • Networking Tools:

  • netstat (network statistics) displays network connections, routing tables, and network interface statistics.
  • ifconfig is used to set, enable or disable an interface's IP address and netmask.
  • ping is used to test whether a particular host is reachable across an IP network.
  • traceroute is used to determine the route taken by packets across an IP network.
  • telnet Useful, yet not secure. Very important that you understand it before going on.
  • rlogin allows users to log in on another host via a network.
  • ssh (Secure Shell) allows data to be exchanged using a secure channel between two computers.
  • inetd is a super-server daemon.
  • nc (netcat) is a utility for reading from and writing to network connections on either TCP or UDP.
  • Advanced Networking:

  • Simplified Linux kernel diagram
  • Socket
  • Berkeley sockets application programming interface (API)
  • Internet socket (or commonly, a socket or network socket)
  • Unix domain socket (UDS) or IPC socket (inter-process communication socket)
  • TCP and UDP port
  • Raw socket
  • Internet protocol suite
  • Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)
  • Virtual private network
  • Networking TCP/IP Model (Official - 5 layers):

  • TCP/IP Model used to explain networking functions.
  • Application layer
  • Transport layer
  • Network layer
  • Data link layer
  • Physical layer
  • Networking OSI Model (Unofficial - 7 layers):

  • OSI model used to explain networking functions.
  • Application layer
  • Presentation layer
  • Session layer
  • Transport layer
  • Network layer
  • Data link layer
  • Physical layer
  • Contact Stan Reichardt by sending mail to

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    Last Updated: 5 January 2019

    January 5, 2019