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Sep 22, 2017

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ndt-server

This repository contains a ndt5 and ndt7 server written in Go. This code may compile under many systems, including macOS and Windows, but is specifically designed and tested for running on Linux 4.17+.

Setup

Primary setup & running (Linux)

Prepare the runtime environment

install -d certs datadir

To run the server locally, generate local self signed certificates (key.pem and cert.pem) using bash and OpenSSL

./gen_local_test_certs.bash

build the docker container for ndt-server

docker build . -t ndt-server

enable BBR (with which ndt7 works much better)

sudo modprobe tcp_bbr

and run the ndt-server binary container

docker run --network=bridge                \
           --publish 443:4443              \
           --publish 80:8080               \
           --volume `pwd`/certs:/certs:ro  \
           --volume `pwd`/datadir:/datadir \
           --read-only                     \
           --user `id -u`:`id -g`          \
           --cap-drop=all                  \
           ndt-server                      \
           -cert /certs/cert.pem           \
           -key /certs/key.pem             \
           -datadir /datadir               \
           -ndt7_addr :4443                \
           -ndt7_addr_cleartext :8080

Alternate setup & running (Windows & MacOS)

These instructions assume you have Docker for Windows/Mac installed.

Note: NDT5 does not work on Docker for Windows/Mac as it requires using the host's network, which is only supported on Linux

docker-compose run ndt-server ./gen_local_test_certs.bash
docker-compose up

After making changes you will have to run docker-compose up --build to rebuild the ntd-server binary.

Accessing the service

Once you have done that, you should have a ndt5 server running on ports 3001 (legacy binary flavour), 3002 (WebSocket flavour), and 3010 (secure WebSocket flavour); a ndt7 server running on port 443 (over TLS and using the ndt7 WebSocket protocol); and Prometheus metrics available on port 9990.

Try accessing these URLs in your browser (for URLs using HTTPS, certs will appear invalid to your browser, but everything is safe because this is a test deployment, hence you should ignore this warning and continue):

Replace localhost with the IP of the server to access them externally.