I am trying to connect Cognos with SalesForce and started creating the Salesforce datasource.

I am getting error while testing the connection , error being below:
XQE-GEN-0002 An unexpected exception occurred: Connecting "<username>@<domain>.com@//https://www.salesforce.com/services/Soap/u/20.0" failed. Error message "org.apache.axis2.AxisFault: peer not authenticated".

I found out that our cognos server is in a secured network and not all ports are opened.

I checked on whats available on internet and found below:
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_concepts_security.htm
which says:
80: This port only accepts HTTP connections.
443: This port only accepts HTTPS connections.
1024–66535 (inclusive): These ports accept HTTP or HTTPS connections.

I need to know 
1. which ports should I get opened for connecting to Salesforce from Cognos is it 443?
3. List of SalesForce servers (referred https://help.salesforce.com/apex/HTViewSolution?id=000003652)

I am trying to connect Cognos with SalesForce and started creating the Salesforce datasource.

I am getting error while testing the connection , error being below:
XQE-GEN-0002 An unexpected exception occurred: Connecting "<username>@<domain>.com@//https://www.salesforce.com/services/Soap/u/20.0" failed. Error message "org.apache.axis2.AxisFault: peer not authenticated".

I found out that our cognos server is in a secured network and not all ports are opened.

I checked on whats available on internet and found below:
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_concepts_security.htm
which says:
80: This port only accepts HTTP connections.
443: This port only accepts HTTPS connections.
1024–66535 (inclusive): These ports accept HTTP or HTTPS connections.

I need to know 
1. which ports should I get opened for connecting to Salesforce from Cognos is it 443?
3. List of SalesForce servers (referred https://help.salesforce.com/apex/HTViewSolution?id=000003652)

I am trying to connect Cognos with SalesForce and started creating the Salesforce datasource.

I am getting error while testing the connection , error being below:
XQE-GEN-0002 An unexpected exception occurred: Connecting "<username>@<domain>.com@//https://www.salesforce.com/services/Soap/u/20.0" failed. Error message "org.apache.axis2.AxisFault: peer not authenticated".

I found out that our cognos server is in a secured network and not all ports are opened.

I checked on whats available on internet and found below:
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_concepts_security.htm
which says:
80: This port only accepts HTTP connections.
443: This port only accepts HTTPS connections.
1024–66535 (inclusive): These ports accept HTTP or HTTPS connections.

I need to know 
1. which ports should I get opened for connecting to Salesforce from Cognos is it 443?
3. List of SalesForce servers (referred https://help.salesforce.com/apex/HTViewSolution?id=000003652)