Dns Update

frank miller frankkmiller at yahoo.com
Fri May 2 18:25:11 UTC 2008


I believe I tested that configuration but when the
HOST machine changed its name (probably through My
Computer, Computer Name if it was WINDOWS) DHCP
ignored the options and did A and PTR records based on
what the client was sending.

I'll try again. Thank you.



 John Hascall <john at iastate.edu> wrote:

> 
> > Do not always want to trust what the client sends
> as
> > the hostname and would like to use what is in the
> host
> > definition for example, the option host-name or
> > ddns-hostname.  
> > 
> > I want DHCPD to update DNS based on what I set not
> > what the client sends. 
> > 
> > I have tried a few of the options but the dns
> always
> > seems to update on what the client sends and not
> on
> > what is in DHCPD.CONF.
> 
> This is what we use without issue:
> 
> ddns-update-style interim;
> ddns-updates on;
> ddns-ttl 300;
>  ...
> # ministry-of-silly-walks.its.iastate.edu
> 00:80:47:3d:a7:a7 john
> host 0080473da7a7 {
> 	hardware ethernet 00:80:47:3d:a7:a7;
> 	ddns-hostname "ministry-of-silly-walks";
> 	ddns-domainname "its.iastate.edu";
> 	option domain-name "its.iastate.edu";
> }
> 
> 
> Hope this helps,
> John
> 
> 



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