HTTP (TCP) and UDP echo servers for testing networking tools
- First, create a docker container with the name
weibellab/nodeechoalldocker build -t weibellab/nodeechoall . - Then, launch it by specifying the HTTP and UDP ports
deployDocker.sh HTTP_PORT UDP_PORT - Profit!
The UDP echoes user messages back to the user that sent them. You can use the python3 script udpecho.py to test it
$ python udpecho.py -c SERVER PORT
udp echo client ready, reading stdin
hello
client received b'hello\n' from ('SERVER', PORT)
Returns your IP as seen by the server
Prints the last 40 log messages seen by the server. This url can help you check whether or not your UDP or TCP requests are making it to the server.
Echos anything in the request header. For example, let's suppose that your server is running at SERVER:PORT. Using ncat, you can get the server to echo the HTTP path back to you
$ ncat <SERVER> <PORT>
GET /echo/danilo/tests HTTP/1.1
After pressing Enter (\n) a couple of times, you get
HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: text/html; charset=utf-8
Content-Length: 18
ETag: W/"12-t5XM4EgL+lcVrBgbX3adzICFJ2U"
Date: Wed, 03 Feb 2021 00:04:12 GMT
Connection: keep-alive
/echo/danilo/tests