Capturing and replaying traffic

Think about Gor more like a network analyzer or tcpdump on steroids, it is not a proxy and does not affect your app anyhow. You specify application port, and it will capture and replay incoming data.

Simplest setup will be:

# Run on servers where you want to catch traffic. You can run it on every `web` machine.
sudo gor --input-raw :80 --output-http http://staging.com

It will record and replay traffic from the same machine. However, it is possible to use Aggregator-forwarder setup, when Gor on your web machines forward traffic to Gor aggregator instance running on the separate server.

You may notice that it require sudo: to analyze network Gor need permissions which available only to root users. However, it is possible to configure Gor [beign run for non-root users](Running as a non-root user).

Forwarding to multiple addresses

You can forward traffic to multiple endpoints.

gor --input-tcp :28020 --output-http "http://staging.com"  --output-http "http://dev.com"

Splitting traffic

By default, it will send same traffic to all outputs, but you have options to equally split it (round-robin) using --split-output option.

gor --input-raw :80 --output-http "http://staging.com"  --output-http "http://dev.com" --split-output true

You can read more about Replaying HTTP traffic.

---

Also you may want to know about Rate limiting, Request rewriting and Request filtering