[Oracle][ODBC SQL Server Driver][libssclient22]General network error

Question

I am using oracle gateway (11.1) for sqlserver on Linux platform with Oracle Server 10g.
I am getting following error when i run any select query:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Oracle][ODBC SQL Server Driver][libssclient22]General network error. Check your network documentation.[Oracle][ODBC SQL Server Driver][libssclient22]ConnectionOpen (connect()).[Oracle][ODBC SQL Server Driver]Invalid connection string attribute
ORA-02063: preceding 2 lines from SQLSERVER
Another thing is, i have created a ODBC DSN named as "sqlserver" as well. This configuration works fine when "program" parameter is set to dg4odbc in Listener.ora. But with dg4msql, it gives error.
Followings are the configuration files:
initsqlserver.ora
# HS init parameters
HS_FDS_CONNECT_INFO=database_machine:1433//test_master
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
listener.ora
SID_LIST_sqlserver =
(SID_LIST =
(SID_DESC =
(SID_NAME = sqlserver)
(ORACLE_HOME = /u01/app/oracle/product/11.1.0.6.0/gateway)
(PROGRAM = dg4msql)
sqlserver =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Server_Machine )(PORT = 1522))
(ADDRESS = (PROTOCOL = IPC)(KEY = PNPKEY))
tnsnames.ora
SQLSERVER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Server_Machine)(PORT = 1522))
(CONNECT_DATA =
(SID = sqlserver)
(HS = OK)
)

Answer 1

Hi,
The error you get is because your HS_FDS_CONNECT_STRING is not correct:
Be sure you can ping the SQL SERVER name from the Oracle Server,or use TCP/IP address
Check the port, it is not necessary 1433.
You can use the instance name insted of port:
HS_FDS_CONNECT_STRING=server_ip_address/instance_name/database_name
Be careful, in the LISTENER.ORA, you must specify the Gateway machine and not the SQL SERVER machine:
sqlserver =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Gateway_Machine )(PORT = 1522)) <====you must specify Oracle Gateway machine
(ADDRESS = (PROTOCOL = IPC)(KEY = PNPKEY))
Idem for TNSNAMES.ORA:
SQLSERVER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Gateway_Machine)(PORT = 1522))
(CONNECT_DATA =
(SID = sqlserver)
(HS = OK)
Regards
Mireille