Configure proxy using IP address on macOS

This guide explains how to replace a proxy DNS hostname with a direct IP address on macOS, using either the network settings GUI or a shell script.

This is useful in environments where:

• DNS resolution is unreliable or slow
• You need to route traffic through a specific egress IP
• Consistent IP usage is required for conditional access or firewall rules

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Manual method (System Settings)

1. Open System Settings → Network
2. Select your current network (e.g., Wi-Fi or Ethernet)
3. Click Details → Proxies
4. Under:
   • Web proxy (HTTP) and
   • Secure web proxy (HTTPS) Replaceproxy.company.comwith the IP address of the proxy (e.g.,192.168.1.10)
5. Set the port (usually8080)
6. Click OK and Apply

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Scripted method (bash)

Use this shell script to apply proxy settings using a raw IP address across all network services:

#!/bin/bash

# Define proxy IP and port
PROXY="192.168.1.10"
PORT="8080"

# Get list of all network services (excluding the header)
services=$(networksetup -listallnetworkservices | tail +2)

# Apply proxy settings to each network service
for service in $services; do
  echo "Setting IP proxy for: $service"
  networksetup -setwebproxy "$service" "$PROXY" "$PORT"
  networksetup -setsecurewebproxy "$service" "$PROXY" "$PORT"
  networksetup -setproxybypassdomains "$service" $(echo $EXCLUSIONS | tr "," " ")
done