http://www.cs.toronto.edu/~ylzhang/csc309w16/hello.html

#telnet to www.cs.toronto.edu (IP: 128.100.3.30) port 80 
#(make sure that each line ends with CRLF)
telnet 128.100.3.30 80

GET /~ylzhang/csc309w16/hello.html HTTP/1.0

GET /~ylzhang/csc309w16/hello.html HTTP/1.1
Host:www.cs.toronto.edu

GET /~ylzhang/csc309w16/hello.html HTTP/1.1
Host:www.cs.toronto.edu
If-Modified-Since: Sun, 03 Jan 2016 20:17:00 GMT

GET /~ylzhang/csc309w16/hello.html HTTP/1.1
Host:www.cs.toronto.edu
If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT 

GET /~ylzhang/csc309w16/anotherDocument.html HTTP/1.1
Host:www.cs.toronto.edu

DELETE /~ylzhang/csc309w16/another.html HTTP/1.1
Host:www.cs.toronto.edu

HEAD /~ylzhang/csc309w16/image.jpg HTTP/1.0

GET /~ylzhang/csc309w16/image.jpg HTTP/1.1
Host:www.cs.toronto.edu