Some DNS servers for which dns_nsupdate.sh is applicable (such
as dyn.com's 'Standard DNS' TSIG update mechanism), require that
the zone be set during the nsupdate transaction. Therefore we
add a new environment variable NSUPDATE_ZONE which is used to
set the zone for the DNS TSIG transaction.
Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>
When debug is enabled, also use nsupdate's debug logging
so that the user can see potential issues with the nsupdate
transaction.
Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>
on Ubuntu 14.04.1 LTS if nsupdate runs without port number given it treated argument following server name as port number.
and throws error:
```
port 'update' is not numeric
syntax error
```
Daniel F. Dickinson