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Date:      30 Jul 2001 19:13:20 +0200
From:      Wouter Cuypers <voutah@detroit.org>
To:        freebsd-questions@FreeBSD.ORG
Subject:   wrong DNS numbers from DHCP server
Message-ID:  <20010730171515.BCEB79BB57@pop3.telenet-ops.be>

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Hello,

I use FreeBSD for natd and ipfw on a 200Mhz pentium system with 2 NIC's.
My cable providers assigns the machine's outside IP using DHCP but it
also gives me the wrong DNS addresses.
I know that they are 195.130.132.17 en 195.130.132.18. But when I look
at my resolve.conf it looks like this:

search pandora.be
nameserver 195.130.132.20
nameserver 195.130.132.18

With these settings my sshd cannot reverse my internal IP's and doesn't
allow me to connect using SSH. Telnetd still works.
When I manually change resolve.conf and change the 20 to 17, then SSH
works just fine.

Is this a problem that I should solve with my ISP or can i get a
work-around ?
Changing the permissions of the file didn't seem to work.
Is there a way to disable the DNS resolving in dhclient ?
I can't just disable dhclient, i'm on a dynamic IP (cycle = about 3-4
weeks).

Thanks in advance,

Wouter


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