Hi, I realize now that in the db.10.in-addr.arpa. there are still the default network addresses (10.0.2.2, 10.0.0.1) instead of the modifies ones (after subnet change). No problem, i guess, since the file is unused, isn't it? Cheers -- Giorgio Pioda - Sysadmin SPSE-Tenero Cell +41 79 629 20 63 Uff. +41 91 735 62 48