[Dnsmasq-discuss] Equivalent of localise-queries for DHCP-assigned leases

Simon Kelley simon at thekelleys.org.uk
Fri Dec 12 14:17:31 GMT 2008

Drews, Paul wrote:
>    The "option:domain-name" line sets the list
>    of domain names that go onto the "search" line in /etc/resolv.conf so
>    a multi-homed host will try qualifying a bare hostname with BOTH subnet
>    domain names when looking it up.  This has to be done ONLY for the
>    multi-homed host, hence the "net:multihomed" tag specific to the
>    aslspecweb13 hostname. 

Just to clear the record, this trick, multiple domains split with 
spaces in the "domain name" option, is not completely legit, and won't 
work everywhere. (it won't work for Windows, for instance.)

The "correct" way to do this is with option 119, as specified in RFC 
3397. The downside is that many DHCP clients don't support option 119, 
though that is changing. dnsmasq does support option 119.



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