Configuring CA ARCserve Backup › Configuring Firewalls to Optimize Communication › Ports Used by CA ARCserve Backup Components › Additional Resources - Firewall Ports Specifications › Ports Configuration File Configuration Considerations

Ports Configuration File Configuration Considerations

When modifying the PortsConfig.cfg file, consider the following scenarios:

Note: The PortsConfig.cfg file is stored in the following directory:

\Program Files\CA\SharedComponents\ARCserve Backup

• If you want to change the Network Attached Storage (NAS) port on the CA ARCserve Backup server, after installing the CA ARCserve Backup NDMP NAS Option, you must change the port assignment on the NAS filer as well.
• The reconnection logic is implemented to avoid an existing network problem. This can occur when you perform client agent backups over the network. During the backup, the connection can be lost and the backup fails. If this occurs, you can specify the reconnection key and a port range that will be used during the backup. Use the reconnection key on the CA ARCserve Backup server side.
• If you are using CA eTrust Firewall software, you should perform the following steps:
  • From the command prompt, access the following:

    	\Program Files\CA\eTrust\Firewall\Engine
    

  • Enter the following command:

    	fwadmin -msrpc_chk_states_off
    

• For remote computer management, CA ARCserve Backup RPC services listen using the ncacn_ip_tcp and ncacn_np protocols. When using ncacn_ip_tcp, open the tcp ports (6502, 6503, and 6504) and open the system ports 137-139, 445 which are used by the Windows operating system when the ncacn_np protocol is used.

  Note: If eTrust Firewall blocks RPC communication, CA ARCserve Backup can respond slowly or stop responding completely.

• To change the port for the Universal Agent, you must change the communication port for all agents and options that use this service that are installed on the same machine (for example, the CA ARCserve Backup Client Agent, the CA ARCserve Backup Agent for Microsoft Exchange Server, and the CA ARCserve Backup NDMP NAS Option). If you add a machine with a Windows XP or Windows Server 2003 operating system, browsing functionality is performed through the Universal Agent.
• Changing the ports for the CA ARCserve Backup Agent for Microsoft Exchange Server and the CA ARCserve Backup Agent for Microsoft SQL Server is for TCP backups for these agents. The RPC server lets you browse all CA ARCserve Backup for Windows database agents.
• If you are upgrading from an older version of CA ARCserve Backup and your current installation uses a configuration file labeled CAPortConfig.cfg for CA ARCserve Backup Client Agents configurations, the installation process migrates CAPortConfig.cfg settings to the PortsConfig.cfg file.

  For previous CA ARCserve Backup installations, information in the CAPortConfig.cfg file is in the following format:

  MachineName	IPAddress	tcpport	udpport
  

  The above-described CAPortConfig.cfg settings migrate to PortsConfig.cfg in the following format:

  fsbackupservice		tcpport	machinename	IPAddress
  

  fsbackupserviceudp	udpport	machinename 	IPAddress
  

  fsbackupserviceunix  	tcpport 	machinename 	IPAddress 
  

Note: For more information about requirements for Microsoft Windows system services ports, see the Microsoft Support website.