Unable to capture JAVA application(.jnlp)

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上代仁

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Mar 17, 2014, 9:31:01 PM3/17/14
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Hi,
I run JAVA application(.jnlp), I wanna capture App send HTTPS traffic.
In the java settings in the control panel, I have the following settings:

 Http  :  127.0.0.1    : 8888
 Secure:  127.0.0.1    : 8888
 Ftp   :  127.0.0.1    : 8888
 Socks :  127.0.0.1    : 8888

I was not able to capture packets in fiddler, but I was able to in wireshark.

How to resolve the problem?
or not a way to do the decoding of the SSL packet in wireshark?

Regards,
Jin Kamishiro

EricLaw

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Mar 18, 2014, 1:50:27 PM3/18/14
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First, are you sure that the traffic is HTTPS?

Next, clear the SOCKS proxy setting; Fiddler does not act as a SOCKS proxy, so your client will fail if you attempt to use it as one.

If that doesn't help, try starting your JVM with the appropriate command line arguments; it might not be respecting the control panel's settings. http://www.fiddlerbook.com/fiddler/help/hookup.asp#Q-JavaTraffic 

上代仁

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Mar 18, 2014, 9:22:35 PM3/18/14
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Thanks for the explanation Eric.

[1]the traffic is HTTPS?
I think for the following reasons.
wireshark captured:

  Sorce:[Local IP] -> Destination:[Server IP]
  Sorce Port:concomp1(1802) -> Destination:https(443)
  
  Sorce:[Server IP] -> Destination:[Local IP]
  Sorce Port:https(443) -> Destination:concomp1(1802)

[2]
I clear the SOCKS proxy setting, but I can't capture packets in fiddler.

Regards,
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