Edit hosts In order for DNS (Domain Name System) to function, it needs DNS records. This software produces those DNS databases from the host file, and the other information provided. For machines that you do NOT want in DNS, but, you would still like to have them in the host file, you can add in the comment field of the hosts file the following: [no_dns]. Here is an example: Hit the edit hosts button. 192.168.77.211 topaz # This host would get a DNS # record. 192.168.77.212 emerald # [no_mx] This host would # not get an MX record. 192.168.77.213 ruby # [no_dns] This host would # not get any DNS records. Is edit hosts the same as the /etc/hosts file on a UNIX machine? No, when you hit the Edit hosts button, it edits another file that is not the /etc/hosts file. You can see the name of the file you are saving when you save it using the Generic editor. If you are running this product on a Solaris 2.x machine, you must make an entry very similar to the following in the /etc/nsswitch.conf: hosts: files dns