[GH-ISSUE #1078] Proxy man won't let connect to Mircrosoft remote desktop servers #1074

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opened 2026-03-03 19:24:19 +03:00 by kerem · 4 comments

kerem commented

2026-03-03 19:24:19 +03:00

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Originally created by @takasurazeem on GitHub (Nov 30, 2021).
Original GitHub issue: https://github.com/ProxymanApp/Proxyman/issues/1078

Proxyman version: 2.35.0 (23500)

macOS Version: 11.6.1 (20G224)

Steps to reproduce Start capturing traffic and then try to connect to your remote desktop server through Microsoft remote desktop tool. It won't connect, close the Proxyman and then connect to the server and then again can open Proxyman.

Expected behavior: Should connect.

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Originally created by @takasurazeem on GitHub (Nov 30, 2021). Original GitHub issue: https://github.com/ProxymanApp/Proxyman/issues/1078 ### Proxyman version: 2.35.0 (23500) ### macOS Version: 11.6.1 (20G224) ### Steps to reproduce Start capturing traffic and then try to connect to your remote desktop server through Microsoft remote desktop tool. It won't connect, close the Proxyman and then connect to the server and then again can open Proxyman. ### Expected behavior: Should connect. ### Screenshots ![image](https://user-images.githubusercontent.com/2876680/144033505-25e1c282-19f7-4410-a398-063920abe4fc.png)

kerem commented

2026-03-03 19:24:19 +03:00

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@NghiaTranUIT commented on GitHub (Nov 30, 2021):

It seems that Remote Desktop Gateway rejects self-signed Proxyman certificates (SSL Pinning). Therefore, all web debugging proxy app could not intercept their HTTPS Traffic.

I will double-check and get back to you 👍

@NghiaTranUIT commented on GitHub (Nov 30, 2021): It seems that Remote Desktop Gateway rejects self-signed Proxyman certificates (SSL Pinning). Therefore, all web debugging proxy app could not intercept their HTTPS Traffic. I will double-check and get back to you 👍

kerem commented

2026-03-03 19:24:20 +03:00

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@NghiaTranUIT commented on GitHub (Dec 1, 2021):

Confirmed @takasurazeem. This app is using SSL Pining, which prevents all MitM apps to capture their HTTPS Traffic. As a result, there is no solution to bypass it unless you have a pinned certificate 👍

@NghiaTranUIT commented on GitHub (Dec 1, 2021): Confirmed @takasurazeem. This app is using SSL Pining, which prevents all MitM apps to capture their HTTPS Traffic. As a result, there is no solution to bypass it unless you have a pinned certificate 👍

kerem commented

2026-03-03 19:24:20 +03:00

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@takasurazeem commented on GitHub (Dec 1, 2021):

@NghiaTranUIT how do we pin a certificate?

@takasurazeem commented on GitHub (Dec 1, 2021): @NghiaTranUIT how do we pin a certificate?

kerem commented

2026-03-03 19:24:20 +03:00

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@NghiaTranUIT commented on GitHub (Dec 2, 2021):

@takasurazeem If you're a developer of this app, you will have a Pinned Certificate. Then you can add it as a Custom Server Certificate from Certificate Menu -> Add Custom Certificate 👍

If you don't have the certificate, there is no way to bypass it.

@NghiaTranUIT commented on GitHub (Dec 2, 2021): @takasurazeem If you're a developer of this app, you will have a Pinned Certificate. Then you can add it as a Custom Server Certificate from Certificate Menu -> Add Custom Certificate 👍 If you don't have the certificate, there is no way to bypass it.