Chapter 18. Internet Services

This "telephone" has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us.

—Western Union internal memo, 1876

			Introduction
			Recipe 18.1.  Simple DNS Lookups
			Recipe 18.2.  Being an FTP Client
			Recipe 18.3.  Sending Mail
			Recipe 18.4.  Reading and Posting Usenet News Messages
			Recipe 18.5.  Reading Mail with POP3
			Recipe 18.6.  Simulating Telnet from a Program
			Recipe 18.7.  Pinging a Machine
			Recipe 18.8.  Accessing an LDAP Server
			Recipe 18.9.  Sending Attachments in Mail
			Recipe 18.10.  Extracting Attachments from Mail
			Recipe 18.11.  Writing an XML-RPC Server
			Recipe 18.12.  Writing an XML-RPC Client
			Recipe 18.13.  Writing a SOAP Server
			Recipe 18.14.  Writing a SOAP Client
			Recipe 18.15.  Program: rfrm
			Recipe 18.16.  Program: expn and vrfy