[root@centos7 ~]# nslookup opensuse.org Server: 192.168.0.202 Address: 192.168.0.202#53 ** server can't find opensuse.org: NXDOMAIN [root@centos7 ~]# nslookup opensuse.org 192.168.0.202 Server: 192.168.0.202 Address: 192.168.0.202#53 ** server can't find opensuse.org: NXDOMAIN