Re: how to change default nameserver?
On 4/9/23 04:20, coreyh@free.fr wrote:
greetings,
I know I can edit the entries in /etc/resolv.conf, but it will be
overwritten by DHCP server.
I searched the internet and got one of the answers:
apt install resolvconf
echo "nameserver 127.0.0.1" >> /etc/resolvconf/resolv.conf.d/head
what's the difference for /etc/resolv.conf and the method above?
I'm not sure, and my methods have been heavily denegrated by the dhcp
fans, but in my case with a many machine local net, and no dhcpd running
on the system, and the changes with each new release, I find the one
repeatable method to solve dns problem, is to compose an
/etc/resolv.conf with 2 lines:
mameserver ipv4 address of router
search hosts, nameserver
And sudo chattr +i /etc/resolv.conf
quickly so NM can't change it. It will remove the search line, killing
your local network, in which case you can ping yahoo.com, but not
another machine on your local net. Your ISP's dns has no knowledge of
your local net which is as it should be.
My router runs something like dnsmasq as its running dd-wrt, and
theoretically a dns request then searchs the host file for a matching
name, failing that my whole local system then query's the router, which
if not cached by dnsmasq, sends the query on to my ISP's dns server, and
I get answers in around 30 milliseconds. And it all just works. With the
router NAT-ing, all machines here can browse the whole planet, as
transparently as border facilities allow.
My main problem with each new release is the ever changing methods of
establishing each machines repeatable, permanent, name and local address
on a completely static system described in the /etc/hosts file. Reliably
setting a domainname used to be once and done, but since bullseye its
only for this reboot, but I've not found a place to make it permanent
across reboots, yet...
If anyone knows how to do that on bullseye, I'm all ears. Hopefully it
will continue to work with bookworm but I'm not a betting man. I'm still
looking for a way to re-establish cups printer sharing, which Just
Worked with buster, but is now blocked on bullseye from other bullseye
machines, but still works with buster machines to this bullseye machine.
WTH???
Thanks for reading, take care and stay well, all.
Thanks & Happy weekend.
corey hickman
.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
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