Current Perl documentation can be found at perldoc.perl.org.
Here is our local, out-dated (pre-5.6) version:
There's a lot more to networking than this, but this should get you started.
For intrepid programmers, the indispensable textbook is Unix Network Programming by W. Richard Stevens (published by Addison-Wesley). Note that most books on networking address networking from the perspective of a C programmer; translation to Perl is left as an exercise for the reader.
The IO::Socket(3) manpage describes the object library, and the
Socket(3) manpage describes
the low-level interface to sockets. Besides the obvious functions in the perlfunc manpage, you should also check out the modules file at your nearest
CPAN site. (See the perlmodlib manpage or best yet, the Perl
FAQ for a description of what
CPAN is and where to get it.)
Section 5 of the modules file is devoted to ``Networking, Device Control (modems), and Interprocess Communication'', and contains numerous unbundled modules numerous networking modules, Chat and Expect operations, CGI programming, DCE, FTP, IPC, NNTP, Proxy, Ptty, RPC, SNMP, SMTP, Telnet, Threads, and ToolTalk--just to name a few.
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