I understand that I need pretty good hardware for minning. But do I need the same hardware for running the Ethereum node just to confirm the transation and profit from Transaction fees?
I have a virtual machine as virtual sever running 24/h in datacenter and there are some CPU resources iddle, I pay the same price if the machine is use 1% or 99% percent of the resources I paid.
What are the recommended HW requirment to run this node for confirming transaction and not minning.
As @BadrBellaj said currently only the miner will get a reward for mining a block. There is no separate reward for executing a smart contract.
But you can run a pool service and charge a fee to the miners. You must have a pretty good connections and be able to quickly handle lots of connections, to other Ethereum nodes and your miners. For example Open Ethereum Mining pool is a pool for Ethereum.
to validate the transactions and get the fees you need to be a miner, therfore you need to dispose of hardware with sufficiant hash power.
