Hi, > A possibility is to use perl, it has a easily accessible gethostbyname > implementation.. (use Socket;) i think. use Socket; $name=gethostbyaddr('134.169.54.170',AF_INET); $name =~ s/\..*//; print "$name\n"' works fine, but somebody said to me: Little tools for little problems... I think, dig is the better alternative. Greetings Holger