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implementing a firewall from scratch - UNIX Programming

I would like to implement (a simulation of) a firewall as an application just for my personal learning. Could someone please give me some pointers (URLs or papers) on the appropriate data structures and algorithms? I'm particularly interested in efficient implementation of enforcing firewall rules. I've searched via Google and could only find information on how to install firewalls. Thank you for any help....

  1. #1

    Default implementing a firewall from scratch

    I would like to implement (a simulation of) a firewall as
    an application just for my personal learning. Could someone
    please give me some pointers (URLs or papers) on the appropriate
    data structures and algorithms? I'm particularly interested
    in efficient implementation of enforcing firewall rules.

    I've searched via Google and could only find information on how
    to install firewalls. Thank you for any help.


    Digital Guest

  2. #2

    Default Re: implementing a firewall from scratch

    In article <c205af$klv$noc.ucla.edu>,
    Digital Puer <comet> wrote:
     

    It's a bit old, but there's the book "Firewalls and Internet Security"
    by Cheswick and Bellovin. It's mostly about application-level firewalls
    rather than packet-filtering firewalls, so it might not address the
    issues you care about.

    --
    Barry Margolin, mit.edu
    Arlington, MA
    *** PLEASE post questions in newsgroups, not directly to me ***
    Barry Guest

  3. #3

    Default Re: implementing a firewall from scratch

    > > I would like to implement (a simulation of) a firewall as 
    >
    > It's a bit old, but there's the book "Firewalls and Internet Security"
    > by Cheswick and Bellovin. It's mostly about application-level firewalls
    > rather than packet-filtering firewalls, so it might not address the
    > issues you care about.
    >
    > --
    > Barry Margolin, mit.edu[/ref]

    If you only want to configure existing tools, you might also have a look at
    this book:
    "Building Internet Firewalls", by Elizabeth D. Zwicky, Simon Cooper, and D.
    Brent Chapman.
    --
    Christoph
    www.chrismc.de


    Chris Guest

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