Build a Local SOCKS5 Configurator to Chain and Rotate ChangeMyIP Proxies (Windows, macOS, Linux)

Overview

A SOCKS5 configurator is a small local service that listens on a port on your machine and forwards whatever your apps send through it to an upstream proxy, or through a chain of proxies. It is the practical answer when an application has no proxy settings of its own, or when you want several unrelated apps to share one proxy configuration instead of editing each one separately.

In this tutorial you will build that configurator with gost, an open-source proxy tool, and point it at ChangeMyIP SOCKS5 endpoints. You will then add a second hop for country-to-country chaining, rotate across multiple endpoints inside a hop, keep credentials out of sight, and run the listener persistently on Windows, macOS, and Linux.

Any SOCKS5 provider works with the configuration below. ChangeMyIP is used as the example because it offers SOCKS5 on dedicated and shared datacenter endpoints as well as rotating residential endpoints, and because flat monthly billing means an always-on local listener adds no per-request cost.

Prerequisites

• A ChangeMyIP plan that includes SOCKS5 access, plus your endpoint host, port, username, and password from the dashboard.
• One endpoint for every hop you plan to chain (chaining needs two independent endpoints).
• Permission to bind a listener on 127.0.0.1:1080, or any free local port.
• curl for verification.
• Basic comfort editing a YAML file.

How the Configurator Sits Between Your Apps and ChangeMyIP

Traffic path:

1. An app opens a SOCKS5 connection to 127.0.0.1:1080.
2. The configurator accepts it and forwards the session to the first ChangeMyIP endpoint (the entry hop).
3. If a second hop is defined, the entry endpoint opens a connection to the exit endpoint.
4. The exit endpoint makes the outbound request and the response travels back down the chain.

What this buys you:

• A single local port that any app can use, including apps with no built-in proxy settings.
• Remote DNS resolution, so name lookups do not leak to your local resolver when you use the socks5h scheme.
• Deterministic egress: a datacenter endpoint for a stable IP, or a rotating residential endpoint when you need IP diversity.
• Chain routing: force traffic through a specific pair of locations by chaining two endpoints.

Steps

1. Classify the ChangeMyIP endpoints you will use. Copy host, port, username, and password for each one, and note whether it is a dedicated datacenter endpoint, a shared datacenter endpoint, or a rotating residential endpoint.

2. Install gost. Download the release archive for your operating system and architecture from the official gost releases page, then extract it.

Windows (PowerShell):

Expand-Archive -Path .\gost_*_windows_amd64.zip -DestinationPath .\gost
.\gost\gost.exe -V

macOS and Linux (use the darwin or linux archive and the matching amd64 or arm64 build):

tar -xzf gost_*_linux_amd64.tar.gz
sudo install -m 0755 gost /usr/local/bin/gost
gost -V

3. Create the configurator configuration for a single hop. Save it as gost.yaml and restrict it, because it contains credentials.

chmod 600 gost.yaml

services:
  - name: socks-in
    addr: "127.0.0.1:1080"
    handler:
      type: socks5
      chain: cmi-single
    listener:
      type: tcp

chains:
  - name: cmi-single
    hops:
      - name: hop-exit
        nodes:
          - name: exit-dc
            addr: proxy-host.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD

Replace proxy-host.example:1080 with the endpoint from your ChangeMyIP dashboard and fill in the credentials issued with your plan.

4. Start the listener and smoke-test it.

gost -C gost.yaml

In a second terminal, confirm the exit IP belongs to the proxy and not to you:

curl --silent --show-error --proxy socks5h://127.0.0.1:1080 https://api.ipify.org
echo
curl --silent https://api.ipify.org
echo

The first request should report the ChangeMyIP endpoint address; the second reports your own connection.

5. Add a second hop to chain two locations. The request travels app, then entry endpoint, then exit endpoint, then the target site. The site sees the exit endpoint address; the exit endpoint sees the entry endpoint as its client.

services:
  - name: socks-in
    addr: "127.0.0.1:1080"
    handler:
      type: socks5
      chain: cmi-two-hop
    listener:
      type: tcp

chains:
  - name: cmi-two-hop
    hops:
      - name: hop-entry
        nodes:
          - name: entry-de
            addr: entry-host.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD
      - name: hop-exit
        nodes:
          - name: exit-us
            addr: exit-host.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD

6. Rotate across endpoints inside a hop with a selector. This is how you spread traffic over several distinct addresses instead of pinning one node.

      - name: hop-exit
        selector:
          strategy: round
          maxFails: 1
          failTimeout: 30s
        nodes:
          - name: exit-us-1
            addr: exit-us-1.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD
          - name: exit-us-2
            addr: exit-us-2.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD
          - name: exit-us-3
            addr: exit-us-3.example:1080
            connector:
              type: socks5
              auth:
                username: YOUR_USERNAME
                password: YOUR_PASSWORD

If you would rather not list addresses yourself, point the hop at a single rotating residential endpoint: ChangeMyIP rotates the IP on its side, and the configurator only needs one node. The pool covers 40+ countries, 300+ cities, and 1000+ subnets, so you can spread rotation across many distinct networks when a task depends on looking like unrelated visitors.

7. Point your applications at the local listener. Browser proxy settings take a SOCKS5 host of 127.0.0.1 and port 1080, with remote DNS enabled so names are resolved by the proxy. Command-line tools usually accept a flag or an environment variable:

export ALL_PROXY=socks5h://127.0.0.1:1080
export HTTPS_PROXY=socks5h://127.0.0.1:1080

Some tools ignore these variables and need an explicit flag, for example curl --proxy socks5h://127.0.0.1:1080. Always prefer the socks5h scheme over socks5 for anything privacy-sensitive.

8. Keep the configurator running. On Linux, a systemd unit is the cleanest option:

[Unit]
Description=Local SOCKS5 configurator (gost)
After=network-online.target
Wants=network-online.target

[Service]
ExecStart=/usr/local/bin/gost -C /etc/gost/gost.yaml
Restart=on-failure
User=proxyuser
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target

sudo install -m 0600 gost.yaml /etc/gost/gost.yaml
sudo systemctl daemon-reload
sudo systemctl enable --now gost
systemctl status gost

On Windows, create a Task Scheduler task that runs gost.exe -C C:\gost\gost.yaml at logon and set it to run whether or not the user is signed in. On macOS, run the same command from a terminal while testing, then wrap it in a LaunchAgent so it starts at login.

Verifying the Chain and DNS Behaviour

Repeat a request in a loop to see whether rotation is actually happening:

for i in 1 2 3; do
  curl --silent --proxy socks5h://127.0.0.1:1080 https://api.ipify.org
  echo
done

Check the reported location of the exit address:

curl --silent --proxy socks5h://127.0.0.1:1080 https://ifconfig.co/json

• A single hop returns the address of that endpoint. A two-hop chain returns the exit endpoint address, never the entry one. If you see the entry address, the chain is not being applied.
• The socks5h scheme asks the proxy to resolve hostnames. Plain socks5:// resolves locally, which can leak your resolver and your approximate location even though the traffic itself is proxied.
• If every request returns the same address with a selector configured, check that maxFails and failTimeout are not excluding nodes, and that the endpoint itself is not a sticky datacenter address.

Troubleshooting

Summary

• A local SOCKS5 configurator, built here with gost, gives every application on the machine one proxy endpoint at 127.0.0.1:1080, whether or not the app supports proxies.
• One hop gives you stable egress; two hops give you country-to-country routing, with the exit endpoint address being the one sites see.
• Selectors rotate across several endpoints inside a hop, while a rotating residential endpoint handles rotation on the provider side.
• Use the socks5h scheme so DNS is resolved by the proxy, and verify the result with a repeated curl loop and a geolocation lookup.
• Keep the YAML file at 0600 and run the listener as a service so it survives reboots and logouts.