A DNS reverse lookup shows your hostname as msnbot-207-46-13-213.search.msn.com . This could be your ISP DNS server or the root hint servers. A new zone has been created. And don’t forget to flush DNS (ipconfig /flushdns) if you still find the same result. Converting a domain name to its IP address using the nslookup command is one of them. linux - nslookup - return only the IP address of host - Stack Overflow But since I changed ISP's ( Not sure if it's related or not) the command no longer is functioning properly. For some reason (without any configuration changes), nslookups to IPv6 addresses just started failing for me. The -6 option forces dig to only use IPv6 query transport. NSLOOKUP: *** Can't find server name... / Default Server: UnKnown If I dissable the IPv6 protocol on the sbs2008 network card it works fine. Step #6 Scan for viruses and spyware Help please, nslookup command no longer functioning. On my Ubuntu 12.4 these work fine: $ hostname my-machine-XX ping `hostname` ping my-machine-xx (192.168.0.69) icmp_req=1 ttk=64 time=0.043 ms. Why does Nslookup return different IP addresses at each execution? Solved: nslookup shows unknown server when IPv6 protocol … If everything is resolving correctly internally but not externally you can test the forwarding DNS server with the NSLookup command. Wenn Sie nur ein einzelnes Datenstück suchen müssen, empfiehlt es sich, den nicht interaktiven Modus zu verwenden. If you omit the second argument, nslookup uses the default DNS name server. However a valid AAAA records exists which I can see from Windows 7 and also via a dig from FreeBSD. SAML: SAML stands for Security Assertion Markup Language which is based on XML-based authentication data format which provides the authorization between an identity provider and service provider. The main use of nslookup is for troubleshooting DNS related problems. IPv6 is disabled on the router 3. type nslookup 4. 4. curl is a tool to transfer data from or to a server, using one of the many supported protocols such as HTTP, FTP etc.