Change proxy settings in Network preferences on Mac
Use the Proxies pane of Network preferences on your Mac to manage internet proxy services.
To change these preferences on your Mac, choose Apple menu > System Preferences, click Network , select a network service in the list on the left, click Advanced, then click Proxies.
If there’s a lock at the bottom left of the Network pane, click it to unlock the preference pane.
Select a protocol to configure
Select the proxy you want to configure, then enter the settings on the right.
Configure proxy server settings automatically: Select Auto Proxy Discovery.
Use a proxy auto-configuration (PAC) file: Select Automatic Proxy Configuration, then enter the address of the PAC file in the URL field.
Configure proxy server settings manually: Select a proxy in the list—Web Proxy (HTTP), Secure Web Proxy (HTTPS), FTP Proxy, SOCKS Proxy, Streaming Proxy (RTSP), or Gopher Proxy—then enter its address and port number in the fields on the right. If needed, select the “Proxy server requires password” checkbox, then enter your username and password.
Exclude simple hostnames
Bypass proxies for network destinations with simple hostnames (for example, https://server).
Bypass proxy settings for these Hosts & Domains
Enter the hosts and domains to bypass. Separate multiple items with commas.
Use Passive FTP mode (PASV)
Use passive FTP mode for file transfers.