Not able to connect to MS SQL 2005 Evaluation version

Question

Hi,
I have installed MS SQL 2005 Evaluation version(downloaded from microsoft site) on my win2k3 Enterprise Edition I am writing a java application that connects to MS SQL 2005.
I have downloaded the MS SQL 2005 JDBC driver. And i unjarred the
I have unjarred the sqljdbc.jar file and kept the com folder and my .java file in the same folder.
When i am trying to connect, I am getting the following error:
com.microsoft.sqlserver.jdbc.SQLServerException: Failed Logon:com.microsoft.sqlserver.jdbc.SQLServerException: TCP/IP connection failed to host:155.35.54.160 java.net.ConnectException: Connection refused:connect
My code look like this:
try {
Class.forName ("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String fs = File.separator;
String conn_str = "jdbc:sqlserver://155.35.54.160:1433;user=sa;password=SA;databaseName=asdb";
conn = DriverManager.getConnection ( conn_str );
catch (Exception e) {System.out.println(e); }
Please reply.
Thanks and Regards,
Sudheer Gajula

Answer 1

First aid check list for "connection refused":
- Check host name in connect string.
- Check port number in connect string.
- Try numeric IP address of server host in connect string, in case name server is hosed.
- Are there any firewalls between client and server blocking the port.
- Check that the db server is running.
- Check that the db server is listening to the port. On the server, try: "telnet localhost the-port-number". Or "netstat -an", there should be a listening entry for the port. You need to configure the database to accept TCP connections; read the documentation or google.
- Try "telnet server-host-name the-port-number" from the client, to see if firewalls are blocking it.
- If "telnet" fails: try telnet with the numeric ip address.
- If "telnet" fails: does it fail immediately or after an obvious timeout? How long is the timeout?
- Does the server respond to "ping serverhost" or "telnet serverhost" or "ssh serverhost"?