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Firewall and IIOP  RSS feed

 
Haroldo Nascimento
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I need have any attetion with Firewalls (will be using Network Address Translation (NAT)) and IIOP ?
 
Ernest Friedman-Hill
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Moved to "Distributed Java" forum.
 
Chris De Vries
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Generally callbacks don't work well through firewalls/NATed boxes. Also you need to make sure the ports you use for the naming service (which I think is typically 1050 for IIOP) as well as for the remote objects are accessible through the firewall.
As far as designing distributed systems so that other people can access them through their firewalls, I would not count on callbacks working as a callback might be intercepted by the remote user's firewall. Instead I would resort to polling or use polling as a fallback position after testing to see if a callbacks fail.
Chris
[ September 04, 2003: Message edited by: Chris De Vries ]
 
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