A docker repository for deploying CTF challenges

Put files to floder bin. They'll be copied to /home/ctf. Update the flag at the same time.

Edit ctf.xinetd. replace ./helloworld to your command.

You can also edit Dockerfile, ctf.xinetd, start.sh to custom your environment.

docker build -t "helloworld" .

DO NOT use bin as challenge's name

docker run -d -p "0.0.0.0:pub_port:9999" -h "helloworld" --name="helloworld" helloworld

pub_port is the port you want to expose to the public network.

If you want to capture challenge traffic, just run tcpdump on the host. Here is an example.

tcpdump -w helloworld.pcap -i eth0 port pub_port