Proxyman does not work with VPN apps

Troubleshooting why Proxyman doesn't work with some VPN app, and how to fix it if possible

In general, VPN apps might conflict with all Web Debugging Proxy apps, including Proxyman, Charles Proxy, Fiddler, and Wireshark.

This troubleshooting would describe which VPN services work and do not work with Proxyman and how to fix them.

Problems

Proxyman cannot capture any HTTP/HTTPS traffic when you're using corporate VPNs.

How to fix it in general

Basically, the VPN app would force all traffic that goes through the VPN Server instead of the Proxyman Local Server (127.0.0.1:9090). Therefore, Proxyman could not capture the traffic.

In order to fix it

• Open your VPN's Settings and try to find a text field where you can override the HTTP/HTTPS Proxy.

• If it's available, let override to the address: 127.0.0.1 at Port 9090

• If it's not available, please Google "<Your VPN Name> config HTTP Proxy" and see how to do it.

Then, Proxyman can capture and work with your VPN app.

✅ New Solution for iOS: Atlantis + Proxyman

• Works with any VPN.

• Capture all HTTP/HTTPS or Websocket traffic from your iOS app

• No need to set up a Proxy or install any certificate

• Works with iOS Simulators and iOS Physical Devices

👉 How to use Atlantis?

• Check out the Atlantis README
• Blog: https://proxyman.com/posts/capture-https-ios-app-with-company-vpn

List of VPNs that work with Proxyman/CharlesProxy/Fiddler

1. Tunnelblick

Works fine without any configuration.

2. FortiClient

Work fine if set HTTP Proxy to Proxyman. Please follow this guideline https://docs.fortinet.com/document/forticlient/6.2.0/xml-reference-guide/179671/proxy-settings

3. AnyConnect

• Try to set HTTP Proxy if it's available in AnyConnect's Preference

• Enter your host in "Bypass proxy settings for these Hosts & Domains" in section in System Preferences -> Network -> Wi-Fi > Advanced -> Proxies (Ref: https://github.com/ProxymanApp/Proxyman/issues/264#issuecomment-816093447)

4. Pulse Secure and Global Protect VPN

Solution 1:

First, you need to install OpenConnect.

brew install openconnect

You need to obtain the installation path for openconnect

whereis -b openconnect

After that, don't forget to edit /etc/sudoers

sudo visudo -f /etc/sudoers 

Add this line and replace <openconnect-binary-path> with your binary path.

%admin ALL=(ALL) NOPASSWD: <openconnect-binary-path>

Now, you can connect to your secured proxy using Juniper SSL / Pulse Connect Secure protocol.

sudo openconnect --protocol nc -u <username> <proxy-url>

Once connected, launch Proxyman and it will work like a charm.

Credit: @florentmorin, from https://github.com/ProxymanApp/Proxyman/issues/1203

Please consult with your Security Team before using the sudo command.

Solution 2:

It might work if we follow the following process:

1. Connect to the VPN and Verify it works

2. Open Proxyman app

3. Reset the VPN Connection

Credit: @AddictiveColors

5. Viscosity

1. Follow the documentation to override the http-https proxy on Viscosity VPN app.

Sample Configure:

#viscosity proxy-http localhost 9090
#viscosity proxy-https localhost 9090

Alternative Solution for Viscosity VPN

1. Under Advanced Tab in the Setting -> Add this to the Connection Setting:

dhcp-option HTTPPROXY 127.0.0.1:9090
dhcp-option HTTPSPROXY 127.0.0.1:9090

1. Start Proxyman -> Done

Reference: https://stackoverflow.com/a/42515317/3127477

6. Cisco VPN

1. Disconnect your VPN

2. Open Proxyman

3. Go to Tools → Proxy Settings → Bypass Proxy Settings…

4. Add a vpn server domain (e.g., vpn.yourcompay.com etc). Tap on Done

5. Connect your VPN now

Reference: https://github.com/ProxymanApp/Proxyman/issues/264#issuecomment-2317101771

7. Nord VPN

• For NordVPN you can use the below to set up a local http/https proxy that will router through NordVPN and then use that proxy server as an external proxy in Proxyman

• https://github.com/edgd1er/nordlynx-proxy

Credit to @seidnerj from https://github.com/ProxymanApp/Proxyman/issues/264#issuecomment-2416373960

8. Zscaler

Please follow this workaround from the Zscaler team

List of VPNs that do not work with Proxyman/CharlesProxy/Fiddler

1. Sophos

Sophos doesn't work with all Web Debugging Proxy apps. It's a known issue from Sophos and there is no solution to fix it.

Please try to ask your Security Team to try to set the HTTP/HTTPS Proxy from Sophos.

Update: Sophos 10.0.4 (A/V Endpoint Protection) might work with Proxyman with a new network proxy extension, but it has a known issue that causes massive CPU Spikes. It's going to fix in the upcoming EAP.

Credit: @AddictiveColors