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Same old tune, but I need to dance to it!

 
Val Pecaoco
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Hi guys,
Why exactly do applets get blocked by the firewall when an applet wants to communicate to the originating Web server? At first up RMI comes to mind, with which firewalls are hostile to (why?). Are there any workarounds available, like using another protocol perhaps?
Thanks in advance.
Ex Animo Java!
-- Val
 
Tim Holloway
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You only needed to ask once! :>
The last place I worked only allowed access from user's desktops through ports 80/8008/8080 (HTTP) and 20/21 (FTP). And they spent a lot of time agonizing over those - they're a Fortune 500 company and that makes them a prime hacker target.
Unfortunately, they also liked to run IIS
This kind of makes life difficult for client apps using EJBs, CORBA, RMI, and the like, which is why http tunnelling is so popular.
 
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