DDNS TTL in dhcpd.conf

[justme2]

All,

Any particular reason to not make this configurable? (main block, single config item "ddns-ttl <seconds>;")

Background
As dynamic devices tend to move around and their record needs to change to update with that change - being able to apply a notably shorter TTL (such as 5 minutes to 30 minutes) helps to ensure that anything is not caching these records for an overly long period of time. This also enables configuring much longer TTLs (1-8 hours) for statics via the zone default while dynamics are generated using a much shorter TTL that is commensurate with their use case.

Thanks!