Computer Associates BABNWUP900NE6 Administration Guide - Page 260
Considerations, Exchange and the BrightStor ARCserve Backup Agent for Microsoft SQL
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Configuring Your Firewall to Optimize Communication Considerations When modifying the PortsConfig.cfg file, consider the following scenarios: ■ If you want to change the Network Attached Storage (NAS) port on the BrightStor ARCserve Backup server, after installing the BrightStor 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 which will be used during the backup. Use the reconnection key on the BrightStor ARCserve Backup server side. ■ If you are using Computer Associates eTrustTM Firewall software, you should perform the following steps: - From the command prompt, access the following: Files\CA\eTrust\Firewall\Engine - Enter the following command: fwadmin -msrpc_chk_states_off ■ For remote computer management, BrightStor ARCserve Backup RPC services listen using "ncacn_ip_tcp" and "ncacn_np" protocols. For remote management of a computer and browsing the database agents, total block is required. You should block communication on the "ncacn_ip_tcp" ports (6502,6503,6504) but also on the system ports 137-139,445, which are used by the Windows operating system in the event "ncacn_np" protocol is used. Note: If eTrust Firewall blocks RPC communication, BrightStor 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 installed on the same machine (for example, the BrightStor ARCserve Backup Client Agent, the BrightStor ARCserve Backup Agent for Microsoft Exchange Premium Add-on, and the BrightStor ARCserve Backup NDMP NAS Option). If you add a machine with a Windows NT, Windows 2000, Windows XP, or Windows 2003 operating system, browsing functionality is performed through the Universal Agent. ■ Changing the ports for the BrightStor ARCserve Backup Agent for Microsoft Exchange and the BrightStor ARCserve Backup Agent for Microsoft SQL Server is for TCP backups for these agents. The RPC server provides browsing capabilities for all BrightStor ARCserve Backup for Windows database agents. ■ If you are upgrading from an older version of BrightStor ARCserve Backup and your current installation uses a configuration file labeled CAPortConfig.cfg for BrightStor ARCserve Backup Client Agents configurations, the installation process migrates CAPortConfig.cfg settings to the PortsConfig.cfg file. 9-36 Administrator Guide