Thanx 4 da help, but it isnt the answer to ma question. I tray to know, ..... All the pc's on Internet use a server (Remote o local ; named ,etc ) that resolve the queries 4 non ip's domains, like www.microsoft.com 4 example 200.37.129.2 ---- use 207.17.220.2 to resolve the queries (of the domains ) in internet. I like to know if there be a program that say me Remotly that 200.37.129.2 use 207.17.220.2 to resolve the domain ( 4 da Internet ) queries. Best wishes Jose A. Freyre Security Admin - UNI - Networks