Hi Listers, I am trying to setup a standby database on a different host from primary. I am using Oracle 8.1.7 on WIN2K. I am unable to setup the standby database in managed recovery mode. It works in manual recovery mode. Also when on primary site, I give the command Alter system archive log current; the alert log file shows the following error tns-12640 authentication adapter initialization failed. I am sending you the parameters of primary and standby and also the listener and tnsnames of both files. Please help. I am really anxious. I have been trying to create standby database for the last two weeks. Thanks in advance. Parameters of Primary: db_name = "prod" db_domain = awc.com instance_name = prod service_names = prod.awc.com log_archive_start = true log_archive_dest_1 = "location=G:\oracle\oradata\prod\archive mandatory reopen=5" log_archive_dest_state_1=enable log_archive_format = %%ORACLE_SID%%T%TS%S.ARC log_archive_dest_2="service=stdby optional reopen=5" log_archive_dest_state_2=enable log_archive_min_succeed_dest=1; TNSNAMES OF PRIMARY: PROD.AWC.COM = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = DATASRV1)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = prod.awc.com) ) ) INST1_HTTP.AWC.COM = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = DATASRV1)(PORT = 1521)) ) (CONNECT_DATA = (SERVER = SHARED) (SERVICE_NAME = prod.awc.com) (PRESENTATION = http://admin) ) ) stdby.AWC.COM = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = aero-v11knrvzlg)(PORT = 5112)) ) (CONNECT_DATA =(SID = prod) ) ) PARAMETER OF STANDBY: db_name = "prod" db_domain = awc.com instance_name = prod service_names = stdby.awc.com control_files = ("C:\oracle\oradata\prod\STDBYCF.F") log_archive_start = false standby_archive_dest= C:\oracle\oradata\prod\archive log_archive_dest = "C:\oracle\oradata\prod\archive" log_archive_format = %%ORACLE_SID%%T%TS%S.ARC LISTENER.ORA OF STANDBY: STDBY_LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) ) (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = aero-v11knrvzlg)(PORT = 5112)) ) ) (DESCRIPTION = (PROTOCOL_STACK = (PRESENTATION = GIOP) (SESSION = RAW) ) (ADDRESS = (PROTOCOL = TCP)(HOST = aero-v11knrvzlg)(PORT = 2481)) ) ) SID_LIST_STDBY_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = C:\oracle\ora81) (PROGRAM = extproc) ) (SID_DESC = (GLOBAL_DBNAME = prod.awc.com) (ORACLE_HOME = C:\oracle\ora81) (SID_NAME = prod) ) ) ************************* Please help me. Regards, Fahd -- //www.freelists.org/webpage/oracle-l