Ping cannot resolve Rob pointed out that PING and NSLOOKUP would resolve names differently which prompted me to dig a little more and see that PING would use the policy settings while NSLOOKUP would use the default DNS servers. Earlier DNS was working fine. ping: cannot resolve localhost: Unknown host Oct 24, 2010 · ping: unknown host解决办法 如果ping命令返回如下错误，那主要的可能性就是系统的DNS设置有误。[cpp] [root@CentOS5 ~]# ping www. I have a Windows network (the Macbook is my first of many Macs). local ping: cannot resolve raspberrypi0. But now I have a problems with lookup. 04 (Xenial Xerus) install. Feb 17, 2012 · If none of the machines on you LAN can complete a nslookup, then it's likely your local DNS can't resolve the hostname properly. If both NS record and SOA records are present for the same parent domain, NS serves nxdomain/nodata response authoritatively. 1 is the only DNS server the machine is working with: So then why is this device not reachable via its hostname? It appears from what you're saying that the request for windows. qbrasgkhkmgmanojahjlzxphvqvcpienhxrgaoqxfjwiowqjvhodaidpyfvgpsyhuejwzegydty