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I want to observe the HTTPs protocol. How can I use a Wireshark filter to do that?

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3 Answers 3

up vote 12 down vote accepted

As 3molo says. If you're intercepting the traffic, then port 443 is the filter you need. If you have the site's private key, you can also decrypt that SSL . (needs an SSL-enabled version/build of Wireshark.)

See http://wiki.wireshark.org/SSL

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There is a difference between filtering and monitoring. WireShark is a monitoring tool. Filtering would have to be done with a firewall or similar. –  txwikinger Apr 26 '11 at 15:13
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@TXwik You filter what you're monitoring with WireShark.... –  Holocryptic Apr 26 '11 at 15:58
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Question could be clearer ;) –  txwikinger Apr 27 '11 at 20:58

"port 443" in capture filters. See http://wiki.wireshark.org/CaptureFilters


It will be encrypted data though.

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tcp.port==443 in the filter window (mac)

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If you're going to post an answer, it really should be one that's substantially different to the other answers on the page already. Saying the same thing that two other answers already say isn't particularly helpful. –  Mark Henderson Jun 13 at 2:52
    
It is substantially different. He added the tcp prefix, which really helped me, after trying previous answers with no luck. –  user53619 yesterday

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