DNS issue

hello,

recently moved several servers 1 physical location 2 different datacenters.  these machines configured use statics ips, moving dhcp reserved ips these servers.

for odd reason, of servers registering dns while others not.  causing client access issues people trying access machines fqdn, servers pingable servername only.

all servers use same primary , secondary dns servers.
problem servers can ping dns servers, can telnet on port 53 each dns server dns client.
problem servers on same subnet, there not appear networking issue on servers.

on effected servers have tried run ipconfig /registerdns no record appears on dns server.  have checked event log on problem servers , can find no error messages relating dns registration.

here additions details working servers:

if manually delete host record dns server record re-appear after run ipconfig /registerdns on client.  however, if remove wins configuration on client machine, delete host record in dns, pings both servername , servername.domain.com both fail.

why wins appear key dns working?  don't think clients updating dns records dns server directly.  believe 3rd party dhcp server may registering on behalf of clients , happens if wins working don't know why.  there way of determining device registered host record on dns server?  can tell if came host, dhcp, or other method?

are there acls of kind may prevent subnets registering records in dns?

 

hello,

recently moved several servers 1 physical location 2 different datacenters.  these machines configured use statics ips, moving dhcp reserved ips these servers.

for odd reason, of servers registering dns while others not.  causing client access issues people trying access machines fqdn, servers pingable servername only.

all servers use same primary , secondary dns servers.
problem servers can ping dns servers, can telnet on port 53 each dns server dns client.
problem servers on same subnet, there not appear networking issue on servers.

on effected servers have tried run ipconfig /registerdns no record appears on dns server.  have checked event log on problem servers , can find no error messages relating dns registration.

here additions details working servers:

if manually delete host record dns server record re-appear after run ipconfig /registerdns on client.  however, if remove wins configuration on client machine, delete host record in dns, pings both servername , servername.domain.com both fail.

why wins appear key dns working?  don't think clients updating dns records dns server directly.  believe 3rd party dhcp server may registering on behalf of clients , happens if wins working don't know why.  there way of determining device registered host record on dns server?  can tell if came host, dhcp, or other method?

are there acls of kind may prevent subnets registering records in dns?

 

reverse lookup zones updated forward lookup zones?

get checklist, check each component if setting new network.

verify ip information correct

verify dns forward zones correct

verify dns forwarding is correct based on infrastructure

verify active directory replication frequency between servers ts purposes run repadmin /syncall , try query fqdn.

on clients, verify ip information correct subnet , verify dns server client getting information from. couple commands... nslookup, or echo %logonserver%.

it simple you're missing , right in front of face. also, when in doubt... reboot clients. maybe client's requests being rejected active directory servers because of kerberos... use ms netmon 3.4 capture traffic client system , verify if being kerberos rejected.

do servers resolve fqdns clients?

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steve kline
microsoft certified professional: server administrator
microsoft certified product specialist
microsoft certified network product specialist
red hat certified system administrator
posting "as is" without warranties , confers no rights.

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