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  1. #1
    Join Date
    Jul 2003

    ORA-12638: Credential retrieval failed

    hi members ,
    we r having two database in two location loc1 and loc2. In both the place oracle 9.0.1 is running under win2k.

    Global_name = 'abc.abc.com'
    Machine name =abc.com
    Global_name = 'def.def.com'
    Machine name =def.com

    i have created the database link as follows
    in loc1
    create public database link def.def.com using 'def.def.com'

    in loc2
    create public database link abc.abc.com using 'abc.abc.com'

    when i am trying from loc1
    select * from dual@def.def.com i am getting the following error
    ERROR at line 1:
    ORA-12638: Credential retrieval failed

    when i am trying from loc2
    select * from dual@abc.abc.com i am getting the following error
    ERROR at line 1:
    ORA-12541: TNS:no listener

    where as i am having one more database oracle 8i under win2k in another location. when i am trying the same i am getting the result..

    please help me to solve this problem
    thanks in advance

  2. #2
    Join Date
    May 2001
    1.check the sqlnet.ora file from the pc u aer are trying to connect and make

    sqlnet.authentication_services =none or comment out the whole line.

    2. check the listener at the remote server to which u are trying to connect whether it is up and running.
    Last edited by akhadar; 07-21-2003 at 02:33 AM.

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