On Mon, 26 Oct 2020, Jonathan Billings wrote:
> Your Knoppix boot probably pushed a dynamic DNS update via DHCP to
> whatever hands out local DNS names on your LAN and now your local IP
> is resolving to that name.
>
> You probably need to update your hostname if you want it to be
> something else. dhclient (the DHCP client in CentOS 7) can also send
> dynamic dns updates when configured. (Look in the man page for
> dhclient.conf, I believe it is do-forward-updates.)
I have dhclient.conf :
option classless-static-routes code 121 = array of unsigned integer 8;
request subnet-mask, broadcast-address, time-offset, routers,
domain-name, domain-name-servers, domain-search, host-name,
root-path, interface-mtu, classless-static-routes;
man dhclient.conf :
The do-forward-updates statement
do-forward-updates [ flag ] ;
If you want to do DNS updates in the DHCP client script (see dhclient-
script(8)) rather than having the DHCP client do the update directly
(for example, if you want to use SIG(0) authentication, which is not
supported directly by the DHCP client, you can instruct the client not
to do the update using the do-forward-updates statement. Flag should
be true if you want the DHCP client to do the update, and false if you
don't want the DHCP client to do the update. By default, the DHCP
client will do the DNS update.
To dhclient.conf , I should add
do-forward-updates true ;
Correct?
Do I need to reboot or somthing to see the effect?
--
Michael hennebry at web.cs.ndsu.NoDak.edu
"Sorry but your password must contain an uppercase letter, a number,
a haiku, a gang sign, a heiroglyph, and the blood of a virgin."
-- someeecards