Is there any limitations, with the Dedicated Server?

Cpwebhosting.net do have a Acceptable Use Policy and its customer cannot go beyond it.

Cpwebhosting.net do not allow IRC (eggdrops, clients or daemons). This is due to rogue IRC users triggering DDoS attacks, which may overwhelm cpwebhosting.net networks, lowering service quality for all customers.

Adult content is disallowed as it may either be of questionable legality or consume large amounts of bandwidth.

Spam is prohibited as given in the Acceptable Use Policy.