This book has been in my wish list for pretty long time, and before I actually buy it decided to check it out of my school's library. Enjoyment started at the first chapters of the book that I read in the library's caffeteria. The book definitely covers all the aspects of the Network Progamming, not only with Perl, but in general as well.
In the first chapters of the book, Lincoln Stein makes good use of such OO modules as IO::File and IO::Socket to demostrate that difference between local file operations and remote network programming isn't that much different at all ( at least in Perl ).
Chapter 2 shows you several applications that are built on pipes. The best thing about the chapter was the signals part, where L. Stein shows examples, catching all sorts of signals that your progam receives and reacts accordingly. One example was reacting to pressing of CTRL+C sequence of keys to terminate the progam.
I would call Chapter 3 the heart of the book, since it goes over Berkeley Sockets, the base for Network progamming in most systems, no matter what progamming language you tend to prefer. It also explains thoroughly Sockets Addressings, Network naming conventions, protocols, services and a lot more. This chapter, together with the Chapter 4 alone are worth the whole price of the book, I believe. The chapter in the end goes over some common netwook analysis tools, such as "nslookup", "ping", so on and so forth.
Chapter 4 tells you all you need about TCP Protocol. Shows several examples as well. Goes over Adjusting Socket options, and their uses.
Chapter 5 is not anything newer supposing you've been following all the pervious chapters. Untill this chapter, L. Stein demonstrates the coding using much low level Socket API. here Lincoln starts using IO::Socket's Object Oriented Interface for its handy functionalities that enable writing Networking applications more relieving.
Chapters 6, 7, 8 and 9 takes you through writing several commong network clients such as SMTP/mailing clients, Telnet, FTP clients. Also provides their complete source codes in case you just feel likek copying them. Chapter 9 gets into the most fun part: LWP and HTML/XML Parsing. Spends good 50 pages on those. Very exciting indeed!
The rest of the book (another half) is dedicated for writing Server applications, which I haven't read. I am sure the rest is as exciting as it's been up to this point. But no matter what, I am greatefull to the book for such an exciting and informative coverage of the topics. It's worth every penny that you spend on it. Buy it!
