dhcp client and dns bind question

ChangShen chang_shen at progressive.com
Thu Mar 23 19:49:05 UTC 2006


Hi all,
I have a naive question.  How a dhcp client's information get into dns
or bind server?
Say in the lan, you have a dhcp server and a dns server.  your dhcp
clients (c1, c2 ,c3, ...)  booted up and get all the network
information from the dhcp server (ip, gateway, dns, ...).  Then from
another machine d1, you ping c1, and the dns returned c1 with the ip
address.

question 1:  how dns server get that c1 information?   from dhcp server
or from dhcp client?
 dhcp update dns everytime it releases a dhcp client?, how dhcp to
update dns?

question 2:  when a user changed the name of c1 to cx without reboot
c1, (say changed c1's dhcpcd.conf, c1's hosts, etc).  then you ping cx
from d1 again, will you get cx's ip address from dns?, for the cases
you with or without restarting c1's eth0.

Thanks



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