$TTL    604800
@       IN      SOA     ns.threadsphere.com. admin.threadsphere.com. (
                          2
                     604800
                      86400
                    2419200
                     604800 )
;
@       IN      NS      ns.threadsphere.com.
ns      IN      A       192.168.1.1
@       IN      A       192.168.1.1
www     IN      A       192.168.1.1