Dcom security and Configuration

Document Outline

• DCOM Security and Configuration 2.4.4
• Introduction
• DCOM configurations for OPC
  • Prerequisites
    • Connectivity of OPC server and client
    • Required accounts
    • Virtual service accounts
    • Security configuration for PI Interface for OPC DA
    • Set permissions for directories that contain OPC executables
  • Procedure
  • Configuring operating system settings
    • Configure local security settings
  • Procedure
    • Configure Windows Firewall settings
  • Procedure
    • Setting encryption level and NTLM negotiation
  • Procedure
  • Configure DCOM settings for the OPC client node
  • Procedure
  • Configure DCOM settings for the OPC server node
  • Procedure
  • Authentication
    • User account configurations for the OPC server
      • Interactively-run programs
      • Verify or change the Windows services account
  • Procedure
    • Impersonation
• Checklist for hardening OPC security
• Troubleshooting
  • Logging of DCOM errors
  • PI log errors
  • DCOM failure logging
  • Enable Windows security auditing
  • Procedure
  • After you finish
  • Common DCOM security errors
  • Unknown user or bad password
  • Failed OPC server activation
  • DCOM errors by numeric code