Great Circle Associates Firewalls
(July 1997)
 

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Subject: Re: JAVA applets connecting to "servlets"...
From: Thierry AGASSIS <thierry . agassis @ bluewin . ch>
Date: Mon, 21 Jul 1997 18:40:02 +0200
To: Bob Beck <beck @ obtuse . com>
Cc: firewalls @ GreatCircle . COM
References: <199707171951 . NAA07317 @ snouts . obtuse . com>
Reply-to: thierry . agassis @ bluewin . ch

Thank's Bob.

But the applet has to be aware of the proxy, doesn't it ?
Because it tries to address its server...or do I miss something ?

I meant, to be able to use any applet coming in, as long as its
signature is recognized and the source is trusted.

Any more light ?

Thank's again and best regards !

Thierry A.

P.S: again, please, copy my personnal address, too. I'm not part of the 
list due to low bandwidth at home.

Bob Beck wrote:
> 
> >
> > Hi,
> >
> > Suppose we have a firewall with proxies only and which let no IP traffic
> > through.
> > What alternatives should be considerred to make applets running inside
> > to be able to connect to their respective servlet (if any) on the host
> > they come from (outside the FW, of course) ? (let's assume the applets
> > are authentified thank's to some signature mechanism).
> >
> > Are there specialized JAVA libraries aware of some tcp relay to contact
> > if the destination IP address is outside the local domain/firewall ?
> > Is there a well known port reserved for that ?
> >
> > Any other alternative ?
> 
>         Sure, if you're running a transparent proxy, have a transparent
> outbound pass-through proxy for any source port to the machine the servelets
> are running on, or in general to any. If you are going to allow a
> "tcp relay to contact if the destination is outside the firewall", you might
> as well do it this way, then there's no special changes.
> 
>         -Bob


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