Updating DNS Records on Linux/Unix with AD Bridge Agent

On a Linux or UNIX machine, an administrator can run the following command:

/opt/pbis/bin/update-dns

This command securely registers the machine’s IP addresses and corresponding PTR records in DNS using dynamic DNS updates. By default, it registers all interface addresses with the default FQDN, which is determined by either:

the machine password store, or
the canonical hostname returned by gethostbyname(gethostname()) if --nocreds is used.

Note: The update-dns command does not run automatically. Each time it is executed, it updates the timestamp on the DNS record. If DNS scavenging is enabled, administrators can configure a cron job (for example, daily) to refresh the record’s date and prevent its removal.

The update-dns command is never run automatically. However, update-dns will add an updated date to the record each time it is run. If scavenging is turned on, an admin can setup a cron job to update the date daily, for example, so the entry does not get removed.

Click here to continue reading and to see example commands and outputs.