1) Can I change my IP address or block it using some kind of software? is it possible to change the ip address without being associated with my old one? I called my cable company and they told me that IP addresses change almost everyday automatically. is it true?
2) they told me also that DNS do not change frequently. is it possible to change manually my DNS? how?
3) after changing dns or ips, should I also clear my cache, cookies and browsing history?
I'm confused...thanks for any input