venkataramanaiahsr
asked on
DNS Warning in event viewer
I am continuously getting this warning in the event viewer. i have an active directory integrated DNS server (ip 128.128.30.1)
The DNS server encountered a packet addressed to itself -- IP address 128.128.30.1.
The DNS server should never be sending a packet to itself. This situation usually indicates a configuration error.
Check the following areas for possible self-send configuration errors:
1) Forwarders list. (DNS servers should not forward to themselves).
2) Master lists of secondary zones.
3) Notify lists of primary zones.
4) Delegations of subzones. Must not contain NS record for this DNS server unless subzone is also on this server.
Example of self-delegation:
-> This DNS server dns1.foo.com is the primary for the zone foo.com.
-> The foo.com zone contains a delegation of bar.foo.com to dns1.foo.com,
(bar.foo.com NS dns1.foo.com)
-> BUT the bar.foo.com zone is NOT on this server.
Note, you should make this delegation check (with nslookup or DNS manager) both on this DNS server and on the server(s) you delegated the subzone to. It is possible that the delegation was done correctly, but that the primary DNS for the subzone, has any incorrect NS record pointing back at this server. If this incorrect NS record is cached at this server, then the self-send could result. If found, the subzone DNS
I have not enabled Forwarders list
other things pls let me know where to look at.
Thanks in advance
Venkat
The DNS server encountered a packet addressed to itself -- IP address 128.128.30.1.
The DNS server should never be sending a packet to itself. This situation usually indicates a configuration error.
Check the following areas for possible self-send configuration errors:
1) Forwarders list. (DNS servers should not forward to themselves).
2) Master lists of secondary zones.
3) Notify lists of primary zones.
4) Delegations of subzones. Must not contain NS record for this DNS server unless subzone is also on this server.
Example of self-delegation:
-> This DNS server dns1.foo.com is the primary for the zone foo.com.
-> The foo.com zone contains a delegation of bar.foo.com to dns1.foo.com,
(bar.foo.com NS dns1.foo.com)
-> BUT the bar.foo.com zone is NOT on this server.
Note, you should make this delegation check (with nslookup or DNS manager) both on this DNS server and on the server(s) you delegated the subzone to. It is possible that the delegation was done correctly, but that the primary DNS for the subzone, has any incorrect NS record pointing back at this server. If this incorrect NS record is cached at this server, then the self-send could result. If found, the subzone DNS
I have not enabled Forwarders list
other things pls let me know where to look at.
Thanks in advance
Venkat
Check the "root hints" section too and make sure the server's own IP isn't listed there.
ASKER
there is no entry of this ip in root hints.
check through your zones and see if any of them could not be loaded. I've seen this problem when a server was set to use root hints, changed to forwarders, and then back to root hints.
The reverse lookup zone got corrupted in that case.
The reverse lookup zone got corrupted in that case.
ASKER
i see some similarity in the actions i did on active directory integrated dns server and the comment posted by "brwwiggins". Intially the domain controller was built without connecting to the internet. hence there were two entries in dns console . one is . and another is domain name. hence the forwarders were not enabled. because of this i could not connect to the internet ( which is thro winxp internet sharing from different machine) from the client machine if i give the ip address of domain controller
(active directory integrated dns) in primary dns place though i give ip address of win xp machine in default gateway.
I had to give ip address of winxp m/c in both default gateway and primay dns inorder to access internet from cliet machine.
To aviod this i deleted . entry to enable forwarders and once i gave dns address of my isp in forwarders list.
then i removed it from the forwarders list.
now my internet problem is solved. whichever machine i need to enable internet all i have to do is give winxp
system's ip address in default gateway. now the primary dns server ip address of all the clients is ip address of my active directory integrated dns server.
now when i go to dns console only forward look up zone contains A record of all hosts connected to this domain controller. there is record in reverse look up zone.
now is this the problem and if so how to rectify it. i think this also explains the reason for my above problem and solution about internet sharing.
so, Dear "brwwiggins" pls explain the complete technical flow how this happened immeditaely
Thanks in advance
Venkat
(active directory integrated dns) in primary dns place though i give ip address of win xp machine in default gateway.
I had to give ip address of winxp m/c in both default gateway and primay dns inorder to access internet from cliet machine.
To aviod this i deleted . entry to enable forwarders and once i gave dns address of my isp in forwarders list.
then i removed it from the forwarders list.
now my internet problem is solved. whichever machine i need to enable internet all i have to do is give winxp
system's ip address in default gateway. now the primary dns server ip address of all the clients is ip address of my active directory integrated dns server.
now when i go to dns console only forward look up zone contains A record of all hosts connected to this domain controller. there is record in reverse look up zone.
now is this the problem and if so how to rectify it. i think this also explains the reason for my above problem and solution about internet sharing.
so, Dear "brwwiggins" pls explain the complete technical flow how this happened immeditaely
Thanks in advance
Venkat
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ASKER
i have only one entry in my ad integrated dns server setting i,e ip address pointing to itself. there are no other entries. I have only one domain controller in my network and one additonal domain controller both in the same ip range and subnet mask . the host which were set as forwarders ( now there are no entries in forwarders) are the dns servers of my isp and i dont think the dns servers of my isp are configured to my domain which is configured with internal ip.
pls explain.
also pls tell me how to go about deleting the zones and recreating in AD
venkat
pls explain.
also pls tell me how to go about deleting the zones and recreating in AD
venkat
ASKER
when i ran netdiag /fix i got the following result
DNS test .......................... .........P assed
[WARNING] Cannot find a primary authoritative DNS server for the name
'daserver.srinivasa.com.'. [RCODE_SERVER_FAILURE]
The name 'daserver.srinivasa.com.' may not be registered in DNS.
PASS - All the DNS entries for DC are registered on DNS server '128.128.30.1
and other DCs also have some of the names registered.
is this the problem and how to rectify it
pls reply immediately as i am getting this msg every few seconds
Thanks
DNS test ..........................
[WARNING] Cannot find a primary authoritative DNS server for the name
'daserver.srinivasa.com.'.
The name 'daserver.srinivasa.com.' may not be registered in DNS.
PASS - All the DNS entries for DC are registered on DNS server '128.128.30.1
and other DCs also have some of the names registered.
is this the problem and how to rectify it
pls reply immediately as i am getting this msg every few seconds
Thanks
ASKER
this msg means dns warning 7062 in event viewer
ASKER
another thing. now there is another entry in my dns console called cached lookups
dns
daserver (computername0
Cached Lookups
.
BIZ
com
cx
edu
etc
tilldate it was not there now when i open dns console this new entry was there . all i rememebr is i stopped and started netlogon service , ran netdiag /fix couple of times
i just want know whether it is normal or my dns is corrupted.
pls explain immediately
dns
daserver (computername0
Cached Lookups
.
BIZ
com
cx
edu
etc
tilldate it was not there now when i open dns console this new entry was there . all i rememebr is i stopped and started netlogon service , ran netdiag /fix couple of times
i just want know whether it is normal or my dns is corrupted.
pls explain immediately