This is a web server that will shut off in response to requests to /block. This is useful for exploiting DNS rebinding against Chrome and Edge, as described in the accompanying blog post.
Ensure that you have golang properly installed, and then install this tool with:
go get github.com/intruder-io/rebind-server@latest
The port to listen on can be specified with -p, and the directory to serve files from can be specified with -a (default ./assets). So, to listen on port 9000, serving files from ./my-exploit, you can run:
rebind-server -p 9000 -a ./my-exploit
The server will shut off after a request is made to /block. While testing, it can often be helpful to run the server in a loop:
while :; do rebind-server -p 8080; sleep 2; done
You will likely have to run this server directly on the host - TCP forwarding won't work.