> >their is no effective way to block apps going out a
> corporate firewall.
>
> [Addendum... sorry, I missed the obvious response...]
>
> Unless it was an application gateway firewall, right?
>
You'd have toblock port 443. There is no way to proxy SSL-encrypted
connections, therefore most proxies simply tunnel it.
There are also programms that tunnel via port 80 with simulated HTML. Those
will also pass an application-level gateway quite happily.
Mit freundlichen Gr��en / Yours sincerely
Juergen Nieveler
arxes Software Factory AG
UB eCommerce
Tel.: +49/241/16008-327
Fax: +49/241/16008-354
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