The scutil command-line utility allows for management for a variety of system configuration parameters and can be used to access system proxy configuration with the -proxy flag. On the right, the 'Set Service Order.'' menu item can be used to change the precedence of the configured network adapters. Because the 'Display Ethernet' network adapter is higher on the list, its proxy configuration takes precedence. On the left, two network adapters are active. The adapter order can be changed by clicking on the gear icon at the bottom of the list and clicking the “Set Service Order…” menu item. If more than one adapter is connected, the operating system uses the proxy configuration for the connected adapter highest on the adapter list in the Network System Preferences pane. The operating system uses the proxy configuration for the currently-connected adapter, updating the system proxy as adapter connection states change. Then select Wi-Fi on the left side panel, and click on Advanced. For example, a Thunderbolt ethernet adapter has its own proxy configuration associated with it that is separate from a wireless adapter. In order to setup proxy on the Mac operating system, first click on the symbol, which is usually located in top left corner, and select System Preferences. Mac OS X maintains individual network proxy settings for each network adapter.

The first will be to tell your machine to not use a proxy when trying to connect to your Docker Machine (VM), and the second will be to configure your Docker Machine to use your proxy in order to connect out to the InterWebs for things like downloading images from Docker Hub. This post describes a method for programmatically setting the command-line network proxy environment variables based on the configured proxy in the Network System Preferences pane. There will be two quick updates to your setup. However, this functionality doesn’t extend to command-line work in Terminal or iTerm and can be a pain when using git or package managers like npm, apm, pip, or homebrew while switching between environments. Mac OS X does a good job of juggling proxy configurations for graphical applications while moving between wired and wireless network connections.

Mac proxy setup