[Assignment1

http://comeng.ce.kyungpook.ac.kr/~c9484034/doc/socket/udp.html

Simple UDP client/server programming (Java implementation)

http://www.uwo.ca/its/doc/courses/notes/socket/index.html

An introduction to sockets programming (C implementation)

http://www.cs.rpi.edu/courses/sysprog/sockets/sock.html

Another C socket tutorial (includes client/server implementation)

http://www.sbu.ac.uk/~chalkbs/teaching/cs3/!week10l.htm

Simple client/server (Java implementation)

Assignment2

Assignment3

http://www.sangoma.com/fguide.htm

Assignment4

http://www.enteract.com/~lspitz/snoop.html

Assignment5

General interest

http://www.auggy.mlnet.com/ibm/3376fm.html