sockets

Anyone know what those ports on the right of the picture are called and what devices connect on them? https://en.wikipedia.org/wiki/Parallel_port I have found this article and it seems this is the upper big one but what about the two ports below it

So hello everybody..... :3 I have a setup where I need to monitor for any foreign I.P. Addresses..... :3 I know I could just use Wireshark, but I wanna make a Program myself to do this..... :3 I imagine it involves Sockets 'n stuff, but I'm not sure where to go about it..... :\...