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A.14. References

  • mod_perl Developer's Cookbook, by Geoffrey Young, Paul Lindner, and Randy Kobes (Sams Publishing). Selected chapters and code examples available online from

  • For more information about signal handling, refer to the perlipc manpage

  • GET and POST request methods are explained in section 9 of RFC 2068, "Hypertext Transfer Protocol—HTTP/1.1"

  • Cookies

    • RFC 2965 specifies the HTTP State Management Mechanism, which describes three new headers, Cookie, Cookie2, and Set-Cookie2, that carry state information between participating origin servers and user agents

    • The cookie specification can be viewed at

    • BCP 44, RFC 2964, "Use of HTTP State Management," is an important adjunct to the cookie specification itself

    • Cookie Central ( is another good resource for information about cookies

  • "Design Patterns: Singletons," by Brian D. Foy (The Perl Review, Volume 0, Issue 1), available at

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