Sure, you can buy Ethernet cables from the store, but where's the fun in that? If you want to make custom cable lengths or crossover cables, or repair a broken connector, why not do it yourself?

I recently bought an house, and I'm trying to figure out how to set up wired internet access. The house is pre-wired but I need some advice on how to reverse engineer it.. 3 rooms have rj-11 and rj-45 ...