How change my DNS server IP?

  • Thread starter Thread starter Ledo
  • Start date Start date
L

Ledo

Hello all:
I have configured my server with IP 192.168.1.15 and used
it as my DNS server. Later I have changed my server IP to
192.168.1.100 but my DNS is still pointing to 15! I have a
DHCP and it keeps advertising my DNS server IP as 15! How
can I change my DNS configuration to the new IP address
(100). Please help.

Ledo.
 
1) change it manually in the zone using the MMC or in the file directly (if
primary.)
2) make sure zone is dynamic update on and reboot server or run net stop
netlogin net start netlogin, ipconfig /registerall, and stop and restart dns
server.
 
L> I have a DHCP and it keeps advertising my DNS server IP as 15!

Well then: go to your DHCP server and re-configure it to hand out the correct
IP address in its leases.

L> How can I change my DNS configuration to the new IP
L> address [...?]

You should know the answer to this. You've already done it once, after all.
You originally configured your DHCP server to hand out the old IP address. So
you should know pretty much where to go to re-configure it to hand out the new
IP address.
 
Also make sure that you have changed the DNS server IP address in DHCP
Scope Options.
In DHCP MMC, select the proper scope for your subnet, select Scope Options.
On the right side, you will see the currently configured options. Select
the "DNS Servers" option (#006), double-click or right click & select
Properties. Remove the incorrect IP address and add the correct IP address.
Save the settings and then release and renew the IP address from the
clients (ipconfig /release, ipconfig/renew).
----
Thanks,
Rakesh Chanana [MSFT]

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--------------------
 
Read what the other responders gave you but the principle
is simple: Change it everywhere you specified it manually.

1) In the zone (the A record associated with the NS record)
2) On other (secondary) DNS server(s) for the zone that use
this server as master (true even if this is a secondary)
3) In DHCP that specifies this DNS server
4) In any clients (including servers which are DNS clients)
that manually specify this DNS server
5) In any DNS servers that forward to this DNS
6) In the parent zone (if any) where the delegation to this
DNS server is specified
7) In the DNS server's OWN NIC\IP\DNS client properties
as it is likely a "client" too.
8) If this is a secondary on any "Notify" dialog on this server's
'master'
9) What did I forget?

Sniff for any traffic to the old address and seek out those
sources and change them too....<grin>

FYI: Never run a sniffer on a network unless you are certain
you have legal and 'business' authority/permission.
 
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