The whois utility is designed to tell you you who owns an IP address range - even if the specific address is not in any DNS. HTH, Stephen. Brian <hiryuu@ztnet.com> wrote: > I'd try traceroute next. It should get you close enough to tell who owns that > IP. If not, you can often e-mail the last network that does RDNS and ask who > owns the given IP. > > -- Brian > > On Thu, 06 Jul 2000, Edouard Soriano wrote: > > Hi guys, > > > > We have set up a Firewall based on Linux. Since several days there are > > some IP address trying to enter > > using telnet. > > > > One of them was found using nslookup. We sent a warning message to the > > ISP manager and they stopped. > > > > But the other is trying like crazy requesting telnet who are rejected by > > the security rules. > > > > This address in unknowed by nslookup. > > > > Any idea about how to catch this #@]|]]!! unfair person ? > > > > Thanks > > > > - > > : send the line "unsubscribe linux-net" in > > the body of a message to majordomo@vger.rutgers.edu > - > : send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.rutgers.edu ======================================================================== Stephen Davies Consulting scldad@sdc.com.au Adelaide, South Australia. Voice: 08-8177 1595 Computing & Network solutions. Fax: 08-8177 0133 - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.rutgers.edu
