How to Setup a Name Servers visible on Internet?

[Stephane Bortzmeyer]

On Tue, Jun 14, 2011 at 02:25:12PM +0200,
 erickom at kom.za.net <erickom at kom.za.net> wrote 
 a message of 307 lines which said:

> root at ns1:/var/cache/bind# named-checkzone metropolitanbuntu.co.za 0.0.10.metropolitanbuntu.co.za.inv

Wrong zone name. The file 0.0.10.metropolitanbuntu.co.za.inv contains
data about 0.0.10.in-addr.arpa, not about metropolitanbuntu.co.za,
which explains why named-checkzone is confused. (See your named.conf,
which is correct.)

I strongly suggest that you drop completely all the "inverse zone"
terminology, which is very confusing. 0.0.10.in-addr.arpa is NOT
metropolitanbuntu.co.za's inverse, it is 0.0.10.in-addr.arpa, period.