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DNS FAILURE 8524

 
 
systems admin
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      12th Aug 2003
I am having probels with replication between two windows
2000 servers. The replication fails with the error
below.

failure code - 8524

failure reason - the dsa operation is unable to proceed
due to a dns lookup failure.

Can anyone please advise

thanks
 
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Michael Johnston [MSFT]
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      12th Aug 2003
It sounds like the DNS zone may have incorrect info listed and since replication isn't working, AD is unable to replicate the correct info. To fix this, make the
zone a standard primary on one of the DNS servers. Point all the DCs to this one DNS server only for DNS. Make sure the zone is configured to allow
dynamic updates. On each DC run "ipconfig /flushdns" and then run "ipconfig /registerdns". Lastly, restart the netlogon service on each DC. Once the
replication failures have stoped, make the zone AD integrated again. If the DCs are running DNS, they should then point at themselves for primary DNS and
point at a central DNS server as secondary. This configuration will help avoid this problem in the future.

Thank you,
Mike Johnston
Microsoft Network Support
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Larry Brasher
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      20th Aug 2003
Hello All,

Some things to look into.

Active Directory with DNS on the same server.

TCP/IP settings

1.)Right click "My network places" and select properties.
2.)For the LAN connection right click and select properties.
3.)On the properties page double click TCP/IP
4.)At the bottom of the protocols page select Preferred DNS Server option
and enter the IP address for the server itself.
5.)Click the advanced button. In the advanced setting make sure the
"Register this connection's address in DNS" selection is checked at the
bottom of the display.

DNS settings

1.)Open up the DNS console.
2.)Once opened, right click on the server in the right hand pane and select
properties.
3.)Once the properties page is up, select the "Forwarders" tab.
4.)Check the "Enable forwarders" selection at the top.
5.)Add the IP address of the DNS in which to forward requests. If this is
the only DNS , add the IP address for the ISP's DNS. (note- In the TCP/IP
settings, we selected the choice for DNS to point to itself. If name
resolution cannot be resolved then a request is made to the forwarders. If
resolution cannot be made via the internal DNS and there are no forwarders
listed, then no resolution will be made at all.)
6.)Click OK.
7.)Expand the "Forward Lookup Zones"
8.)If there is a folder with a dot "." listed then delete it. (note- This
indicates to the server that it is the root server, which means do not go
beyond this server for name resolution.)
9.)Right click the domain folder and select properties. Make sure that
"Allow dynamic updates is selected."

Close out the DNS console.

Open up a command prompt and type the following:

1.)At the prompt type ipconfig /flushdns and wait for the services to
flush.
2.)ipconfig /registerdns wait for the services to regiser.
3.)net stop netlogon
4.)net start netlogon

If you receive an error during this process go to control panel, admin.
tools, services. Make sure the DHCP client service is started, even if
they are not using DHCP they still need the service started. Once all of
this is done. Open the DNS console again. Expand the forward lookup zones,
then expand the domain folder. You should see the underscore folders below:

_msdcs
_sites
_tcp
_udp

If you see these, then all is right with the world.



Shane Brasher
MCSE (2000,NT),MCSA, A+
Microsoft Platforms Support
Windows NT/2000 Networking





 
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