Use alter connection to change the security settings for a database connection.
alter connection to data_server.database { ... set password to passwd | set security_mechanism to 'mechanism_name' | set dsi_exec_request_sproc to { 'on' | 'off' } | set security_parameter to { 'required' | 'not_required' }}
To change the security parameters of a database connection, perform these steps at the Replication Server:
alter connection to TOKYO_DS.pubs2 set unified_login to 'required'
alter connection to TOKYO_DS.pubs2 set dsi_exec_request_sproc to 'off'