ISC DHCP option for updating A RR ?

[vu pham]

Ahhhhh, I made a typo. Used "ignore-client-updates" ( having "-" after 
ignore )instead of "ignore client-updates". It works great now.

Why "ignore-client-updates" is not reported as error by dhcpd ?

Vu

vu pham wrote:
> I use ISC DHCP (3.0.5) to make ddns update to the dns server ( bind 
> 9.3.4 ). I notice that for dhcp-client PCs that are not in a Windows 
> domain , the dhcp server will do the update for the A RR and the PTR RR, 
> and for dhcp-client PCs that are in a domain, the dhcp server will only 
> do the update for PTR RR.
> 
> Ethereal shows in both cases, the dhcp clients request the server *not* 
> to update the A RR ( in DHCP REQUEST option 81 FQDN bit 7) and the dhcp 
> server ACKs them differently.
> 
> For non-domain PCs, the server sets the overidden bit to 1 ( in DHCK 
> ACK, option 81 FQDN  bit 6), which means it will update the A RR even 
> when the client does not want the server to do that. And for domain PCs, 
> the servers set that bit to 0.
> 
> Do we have any option in dhcpd.conf that can force the server to always 
> update the A RR ?
> 
> Thanks,
> 
> Vu
>