Date: Thu, 16 Jun 2005 12:50:59 -0700 From: Sam Leffler <sam@errno.com> To: John Baldwin <jhb@freebsd.org> Cc: brooks@freebsd.org, current@freebsd.org Subject: Re: New dhclient broke multiple domains in domain-name Message-ID: <42B1D823.5030108@errno.com> In-Reply-To: <200506161312.51857.jhb@FreeBSD.org> References: <200506161312.51857.jhb@FreeBSD.org>
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John Baldwin wrote:
> [ Apologies if this has already been brought up, I'm still 1800 messages
> behind on current@. ]
>
> A feature of both the old and new dhclient(8) is that it would take whatever
> was in the domain-name option returned by the DHCP server and stick it in the
> 'search' line in /etc/resolv.conf. Thus, if you wanted to have DNS search
> multiple domains, you could just pass a space separated list of domains to
> search in domain-name and it would just work. I've made use of this
> "feature" in several different environments in the past including my current
> test lab. It's even used in the example dhclient.conf in dhclient.conf(5):
>
> interface "ep0" {
> send host-name "andare.fugue.com";
> send dhcp-client-identifier 1:0:a0:24:ab:fb:9c;
> send dhcp-lease-time 3600;
> supersede domain-name "fugue.com rc.vix.com home.vix.com";
> prepend domain-name-servers 127.0.0.1;
> ...
> }
>
> The new dhclient is barfing on my domain-name setting now because it doesn't
> look like a domain name:
>
> Setting hostname: deimos.baldwin.cx.
> fxp0: link state changed to UP
> DHCPDISCOVER on fxp0 to 255.255.255.255 port 67 interval 8
> DHCPOFFER from 192.168.0.1
> Bogus Host Name option 15: baldwin.cx freebsd.org atl.weather.com (baldwin.cx
> freebsd.org atl.weather.com)
> Invalid lease option - ignoring offer
> packet_to_lease failed.
> DHCPDISCOVER on fxp0 to 255.255.255.255 port 67 interval 10
> DHCPOFFER from 192.168.0.1
> Bogus Host Name option 15: baldwin.cx freebsd.org atl.weather.com (baldwin.cx
> freebsd.org atl.weather.com)
> Invalid lease option - ignoring offer
> packet_to_lease failed.
> ...
>
> I'd very much like the old behavior restored if possible, or an alternative
> way to achieve the same result (multiple domains in the 'search' part
> of /etc/resolv.conf). Note that the old domain-name trick has worked all the
> way back to at least 4.1 and maybe even back in the 3.x days IIRC.
>
Known issue being worked on. You're actually violating the spec but I
know that's less important than having a way to do what you want.
Sam
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