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Re: [APML] Off Topic- Pop Up Instant Messages

--- Jerry Lodriguss <jerry@astropix.com> wrote:
> It's not that you need messenger service, it's just that if you are
> not 
> behind a firewall, you are really at risk, and I mean REALLY at risk.

Can someone explain what a firewall is, how it works, why it's needed,
etc... in laymens terms? No, in lower terms than a layman could
understand, this is me. :-)

Thanks,
Alan

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