# \[mitmproxy\] Can not verify mitmproxy certificate
**URL:** https://discourse.mitmproxy.org/t/mitmproxy-can-not-verify-mitmproxy-certificate/714
**Category:** help
**Created:** [November 16, 2017, 4:33am UTC](https://discourse.mitmproxy.org/t/mitmproxy-can-not-verify-mitmproxy-certificate/714 "2017-11-16T04:33:47Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@KhanhDinh](https://discourse.mitmproxy.org/u/KhanhDinh)
#### Post date: [November 16, 2017, 4:33am UTC](https://discourse.mitmproxy.org/t/mitmproxy-can-not-verify-mitmproxy-certificate/714/1 "2017-11-16T04:33:47Z")
Dear all,
I am Khanh . Currently, I would like to set up mitmproxy to decrypt HTTPS traffic.
My scenario is:
Windows7 -\> Ubuntu(Gateway)(install proxy)
On Windows 7, I have this configuration:
IP: 10.0.0.104
Gate way: 10.0.0.1
And this is the ifconfig of ubuntu machine
eth0: 192.168.10.150
eth6: 10.0.0.1
And we set up the gateway like this:
192.168.10.1
After installing mitmproxy 0.9.2
I can capture HTTP traffic from Windows machine
But in windows machine, I can not access to mitm.it server to get the certificate
The error: traffic is not passing through mitmproxy
When I installed certificate manually(getting from ubuntu machine and install it on windows machine), the certificate seems not trusted.
Please help me for this situation
Thank you
Khanh
---
### Author:  [@Gigiarum](https://discourse.mitmproxy.org/u/Gigiarum)
#### Post date: [November 27, 2017, 3:35pm UTC](https://discourse.mitmproxy.org/t/mitmproxy-can-not-verify-mitmproxy-certificate/714/2 "2017-11-27T15:35:48Z")
Have you added mitmproxy certificate in “Trusted Root Certification Authority”? You can do this with Windows’ certmgr.msc utility.