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11 Networking.

11.1 UW network concepts.

You can find information about the Internet at many sites. Try looking at what is stored at Here are some other interesting statistics on the Internet.

11.2 Example of subnetted network.

This diagram shows an example of a subnetted network.

11.3 Network topologies.

Here is a description of the technical details of Ethernet networks. The most common topologies on this campus are:

11.4 DNS name service.

E.g., host stimpy in domain has a fully qualified domain name (FQDN) of

# hostname ren
SunOS 4.x: get replacement libraries from ftp.cac:/pub/sun-fix. SunOS 5.x users need to modify /etc/nsswitch.conf.

11.5 ISO vs. TCP/IP protocol stacks.

11.6 Protocols, ports, and servers.

To force inetd to reread its configuration file, send it a -HUP signal, like this:

# ps -aux | grep inetd
root 111 0.0 1.7 1.44M 344K ? S 0:00 (inetd)
root 4451 0.0 1.0 1.52M 208K p2 S 0:00 grep inetd
# kill -HUP 111 # ...for BSD
# killall -HUP inetd # ...for System V

11.7 Configuring the ethernet interface (BSD).

11.8 Configuring the ethernet interface (System V).

11.9 Configuring the networking software.

Here is an example of setting up the network interface for a Sun computer.

11.10 User commands.

11.11 Public domain utilities/facilities.

11.12 Standard diagnostic tools.

11.13 Public domain diagnostic tools.

11.14 Public domain security tools.

11.15 Useful information

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