Charles Proxy Mac
Introduction
To have your Mac detect whether a proxy is necessary and automatically configure the proxy settings, enable the “Auto Proxy Discover” checkbox. Your Mac will use the Web Proxy Auto Discover protocol, or WPAD, to automatically detect whether a proxy is necessary. This setting may be used on business or school networks, for example.
This document describes the procedure used in order to capture HTTPS (Hyper Text Transfer Protocol Secure) traffic with the Macintosh(Mac) program Charles proxy.
Prerequisites
- Download the latest version of Charles for Mac - Java HTTP proxy and monitor. Read 7 user reviews of Charles on MacUpdate.
- Nov 01, 2019.
- Jan 26, 2020.
- Charles Web Debugging Proxy Application for Windows, Mac OS and Linux.
Requirements
Cisco recommends that you have knowledge of Apple OS X.
Components Used
The information in this document is based on the Charles application available from the author's source.
The information in this document is based on Apple OS X.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.
Background Information
This would be essential for troubleshooting Single Sign-On (SSO) traffic which cannot be captured with normal network traffic tools.
Configure
Step 1. Download Charles proxy and then install Charles - Download Charles Web Debugging Proxy Application
Step 2. Open Charles
Step 3. Navigate to Proxy > select MAC OS X Proxy
Step 4. Navigate to Proxy > Proxy Settings > enable Use a dynamic port
Step 5. Navigate to Help > SSL Proxying > Install Charles Root Certificate
Step 6. The Charles Proxy certificate will be installed under login, but move it to System keystore
Step 7. Input site URL in browser and then Charles will capture the logs with the site information.
Step 8. Right click the site URL http://cisco.webex.com and then select Enable SSL Proxying
Step 9. Select Proxy > SSL Proxying Settings > Verify you see this image
Charles will now begin to capture the HTTPS traffic for the site URL. In order to capture other site URL, repeat steps 7, 8, 9 and ensure the URL is added to the SSL Proxying.
Related Information
- 6Configure CLI
Purpose
This article gives the steps to setup Charles Proxy on Mac OS X Yosemite. It can be used to proxy your CLI traffic to a work proxy server. The main benefit is if you have to pass credentials it can be securely stored in Charles Proxy (One place) and all your CLI commands and Dev tools point to it locally without the need for credentials.
Download and Install
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Uncheck Mac OS X Proxy
Since we'll be setting up all the proxy settings in Charles under External Proxy Settings.. we'll want to turn this option off.
Setup External Proxy
- Select menu Proxy External Proxy Settings..
- Check the box for Use external proxy servers
- Check the box for Web Proxy (HTTP)
- Enter proxy hostname not URL and Port number
- Enter proxy server username and password if required
- Check the box for Secure Web Proxy (HTTPS)
- Enter proxy hostname not URL and Port number
- Enter proxy server username and password if required
- Check the box for Always bypass external proxies for localhost
- Enter exclusions list and Select OK
- One IP address or name per line.
Proxy Settings
Set the Charles Proxy 'Proxy Settings'. Basically what port to listen on locally.
- Select menu Proxy Proxy Settings
- Set the port to the default 8888 or pick a custom port.
- Select the check box for Enable transparent HTTP proxying
- Select OK
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Configure CLI
Option 1 (Always set)
There's several ways you can get the Charles Proxy settings into your shell environment variables. Here's one way to allows have the settings in place. Meaning you'll always need to be running Charles Proxy while in the shell if you need network access.
Add environment variables to ~/.bash_profile
Option 2 (Turn settings on and off)
Charles Mac Https
Another way you can get the Charles Proxy settings into your shell environment variables is to create a function to set and a function to unset. With the following, you can type proxy-on which will set the environment variables and then when done with the need for the proxy settings you can type proxy-off. This may be good for if you are on and off of a proxy network.
Add environment variables to ~/.bash_profile
Configure Test Kitchen
You must launch Charles Proxy and keep it running pretty much at all times or at least while doing CLI/Dev work that requires network access.
Macos Charles Proxy
Troubleshooting
- If you get an error that you can't save settings to the configuration you may need to change ownership of the application files.
- If you don't have a license it will shutdown after about 10 minutes. You can relaunch it, apply a license or maybe cron something.