Is it better to set -j REJECT or -j DROP in iptables?
There’s an example of iptables rules on archlinux wiki:
udp
Redirect stdin and stdout to ports
I’d like to take a program P that reads from stdin & writes to stdout, but connect it to nc or whatever such that it reads from a certain port and outputs to another port.
How do I reserve ports for my application?
How do I reserve a list of ports for my custom applications?