should send out option 81 (FQDN). Defaults to "on". If set to "off",
the FQDN option is not sent, even if the client requested it. This is
needed because some clients misbehave otherwise. [rt16624]
'deny client-updates;'. The client's request is not truly ignored,
rather it is encouraged. Should this value be configured, the server
updates DNS as though client-updates were set to 'deny'. That is, it
enters into DNS whatever it is configured to do already, provided it is
configured to. Then it sends a response to the client that lets the
client believe it is performing client updates (which it will), probably
for a different name. In essence, this lets the client do as it will,
ignoring this aspect of their request. [ISC-Bugs #16185]
added. If this option is enabled, dhcpd will perform normal DHCID
conflict resolution (the default). If this option is disabled, it will
instead trust the assigned name implicitly (removing any other bindings
on that name). This option has not been made available in dhclient.
[ISC-Bugs #16165]
the PTR if the update of the A failed.
- Don't do the delete with the 'interim/rfc' code if we didn't do the
add with the 'interim/rfc' code.
- Don't delete the dhcid RR if there is still a valid A RR, and don't
just delete all A RRs when installing a new one - the client may
legitimately have IP addresses on more than one subnet.
<draft-ietf-dhc-dhcp-dns-12.txt>.
common/options.c, common/tables.c, includes/dhcp.h:
Split the fqdn.name option into fqdn.hostname and fqdn.domainname.
includes/dhcpd.h, server/Makefile.dist, server/ddns.c, server/dhcp.c,
server/mdb.c, server/stables.c:
Added a new file (server/ddns.c) containing the DDNS updates code.
This file exports two functions: ddns_updates() and ddns_removals().
ddns_updates() is called when a lease is granted, and ddns_removals()
is called when the lease expires or is released.
server/dhcpd.c:
Remove the previous DDNS update code, and add default code for the
ddns-hostname, ddns-domainname, ddns-ttl, and ddns-rev-domainname
server options.
