samba - Jun 2020 - Fwd: DHCP Updates to DNS - Multiple Entries with Same IP

Dear Rowland

I still have the problem that both dhcp's are running the dhcp-dyndns.sh
script and therefore I changed the shell script, to skip deleting and adding
every record and to do only necessary changing.

While changing, I found a Typo in sub: rev_zone_info () {
case "$numwords" in
        1) # single ip rev zone '192'
           ZoneIP=$(echo "${IP}" | awk -F '.' '{print
$1}')
           RZIP=$(echo "${rzoneip}" | awk -F '.' '{print
$3}')

It should be $1 instead of $3
BTW.: I changed it also to array manipulation instead of sed statements.

A second problem I had with my laptops with WLAN and LAN, where I use
ddns-hostname to distinguish between both interfaces, which is not honored in
your "on commit" statement
Adding the config-option as first choice overcomes this problem as follows: 
pick-first-value(config-option server.ddns-hostname, option host-name,......

the third problem I had was that you check with "host" if the record
exists in DNS, but in my case it refers to "example.com" and not to
"samdom.example.com", which gives a lot of strange errors.

If you are interested in my rewrite, send me an email  

Mani