[Samba] Samba Wiki: fix to "Configure DHCP to update DNS records" page

[Rowland Penny]

On 23/01/2023 13:47, Ing. Claudio Nicora via samba wrote:
> @Rowland Penny: thanks for the BASH script to let DHCP update DNS 
> records 
> (https://wiki.samba.org/index.php/Configure_DHCP_to_update_DNS_records).
> 
> I'm suggesting this change:
> the "if" condition at line 171 does not use the filename assigned to 
> $keytab variable (at line 41), but a fixed filename (equal to default 
> $keytab filename).
> If someone (like me) need to set a different filename, then the Kerberos 
> keytab test fails.
> 
> So my suggestion is to replace the "if" condition (around line 171) from
> 
> ------------------------------
> # Check for Kerberos keytab
> if [ ! -f /etc/dhcpduser.keytab ]
> then
>    logger "Required keytab $keytab not found, it needs to be created."
>    ...
> ------------------------------
> 
> to
> 
> ------------------------------
> # Check for Kerberos keytab
> if [ ! -f "$keytab" ]
> then
>    logger "Required keytab $keytab not found, it needs to be created."
>    ...
> ------------------------------
> 
> Thanks for your work

Thanks for pointing that out, thought I had changed them all, I have now 
(hopefully)

Rowland