W2K8r2 domain issue with replication

i have w2k8r2 domain 2 dc's , pdc not replicate backup dc.

i ran dcdiag , below results:i changed name of domain , pdc server security purposes.

 

directory server diagnosis

performing initial setup:
   trying find home server...
   home server = primary dc
   [primary dc] directory binding error 1753:
   there no more endpoints available endpoint mapper.
   may limit of tests can performed.
   * identified ad forest.
   done gathering initial info.

doing initial required tests

   testing server: default-first-site-name\primary dc
      starting test: connectivity
         [primary dc] dsbindwithspnex() failed error 1753,
         there no more endpoints available endpoint mapper..
         got error while checking ldap , rpc connectivity. please check your
         firewall settings.
         ......................... primary dc failed test connectivity

doing primary tests

   testing server: default-first-site-name\primary dc
      skipping tests, because server primary dc not responding to
      directory service requests.

   running partition tests on : forestdnszones
      starting test: checksdrefdom
         ......................... forestdnszones passed test checksdrefdom
      starting test: crossrefvalidation
         ......................... forestdnszones passed test
         crossrefvalidation

   running partition tests on : domaindnszones
      starting test: checksdrefdom
         ......................... domaindnszones passed test checksdrefdom
      starting test: crossrefvalidation
         ......................... domaindnszones passed test
         crossrefvalidation

   running partition tests on : schema
      starting test: checksdrefdom
         ......................... schema passed test checksdrefdom
      starting test: crossrefvalidation
         ......................... schema passed test crossrefvalidation

   running partition tests on : configuration
      starting test: checksdrefdom
         ......................... configuration passed test checksdrefdom
      starting test: crossrefvalidation
         ......................... configuration passed test crossrefvalidatio

   running partition tests on : scm-prod
      starting test: checksdrefdom
         ......................... domain passed test checksdrefdom
      starting test: crossrefvalidation
         ......................... domain passed test crossrefvalidation

   running enterprise tests on : domain.local
      starting test: locatorcheck
         ......................... domain.local passed test locatorcheck
      starting test: intersite
         ......................... domain.local passed test intersite

c:\windows\system32>

 

any in pointing me in right direction appreciated

 

 

hello,

first of all, there no backup dcs. dcs rw except rodcs.

 

doing initial required tests

   testing server: default-first-site-name\primary dc
      starting test: connectivity
         [primary dc] dsbindwithspnex() failed error 1753,
         there no more endpoints available endpoint mapper..
         got error while checking ldap , rpc connectivity. please check your
         firewall settings.
         ......................... primary dc failed test connectivity

 

i suspect 2 things:

• dns resolution problem
• blocked ports ad replication problem

for dns, make sure that:

• each dc / dns server points primary dns server , other internal dns servers secondary ones
• each dc without dns points internal dns servers dns servers

once done, run ipconfig /registerdns and restart netlogon on each dc.

for ports needed ad replication, refer that: http://technet.microsoft.com/en-us/library/bb727063.aspx

use portqry v2 check.

 

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