On the old machine, named runs as nobody. On the new machine, it installed wanting to run as bind. We can accept this change.
The pid-file has moved - we can accept this change.
bind9 runs, and tries to send notifies.
dig returns the right ip address (ie, the address of the real tux)
Seems good enough.
| field | example | normally | prep for change |
| serial number | 2003080800 | 2005070201 | 2007051700 |
| refresh | 2 d - 172800 | 3 h - 10800 | 10 m - 600 |
| update retry | 15 m - 900 | 1 h - 3600 | 5 m - 300 |
| expiry | 2 w - 1209600 | 1 w - 604800 | 1 w - 604800 |
| minimum | 1 h - 3600 | 1 h - 3600 | 10 m - 600 |
See http://www.ripe.net/ripe/maillists/archives/dns-wg/1998/msg00070.html for info on these values.
Secondaries check every <refresh> seconds, whether the SOA on the primary has changed. If yes, a zone transfer is done.
A secondary having been unable to do a zone transfer because of unreachable of the primary retries every <retry> seconds.
The zone's information is considered invalid by the secondary if the primary could not be reached for <expire> seconds.
This is the default value for all records in the zone file which can be overriden by values for the individual records. After <minimum TTL> seconds, the zone information on the caching nameserver becomes invalid and has to be re-fetched from an authoritative server. NOTE: This field was intended to be a minimum value for all records in the zone but is now widely implemented as giving the default.