Network Programming with Perl by Lincoln D. Stein

By Lincoln D. Stein

A textual content concentrating on the equipment and choices for designed TCP/IP-based client/server platforms and complex options for specialised purposes with Perl. A consultant reading a set of the simplest 3rd celebration modules within the accomplished Perl Archive community Softcover.

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In practice, however, this has not been the case and it has not deterred anyone from deploying IPsec over IPv4 for virtual private networks (VPNs). Chapter 2 • What’s Wrong with IPv4? 25 Some supporters point to improved performance in IPv6 routers over IPv4 routers due to differences in the way addresses and routes are handled. In fact, this is probably one area where IPv6 will provide an advantage—but this is still speculative inasmuch as no IPv6 network has as many routes as are found in the Internet’s backbone networks.

By gaining early control of the operating system for computers based on the Intel 8086/08x86 processor family, Microsoft’s Disk Operating System (MS-DOS) disrupted the way Apple Computer did business. Apple has always been, fundamentally, a software company that uses its own hardware as its package. It took Microsoft over 10 years to offer the same OS features that Apple did in 1983, but by then Microsoft dominated the industry. Thus, disruptiveness does not always mean a product that is better than what is already offered by the leading firms in the industry.

Like a heavily used highway or bridge, IPv4 is reaching the end of its useful lifespan and must be upgraded soon. 2 What’s Wrong with IPv4 Saying that IPv4 has limitations and shortcomings is very much like saying that the internal combustion engine is a flawed power source for cars 22 Part One • Theory and trucks. Certainly, there are flaws: expensive, wasteful of nonrenewable resources, dangerous. Yet, there is no denying that internal combustion engines power a significant portion of the developed and undeveloped world.

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