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EVLA Monitor & Control Software PDR. Monitor & Control Network Security. Requirements. Accessibility Operators Engineers Scientists Monitor vs. Control Read vs. write Security Acceptable risk. Access. From M&C systems to antennas From VLA to antennas From AOC to antennas

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Evla monitor control software pdr

EVLA Monitor & Control Software PDR

Monitor & Control Network Security

EVLA M&C Software PDR

May 14-15 2002


Requirements
Requirements

  • Accessibility

    • Operators

    • Engineers

    • Scientists

  • Monitor vs. Control

    • Read vs. write

  • Security

    • Acceptable risk

EVLA M&C Software PDR

May 14-15 2002


Access
Access

  • From M&C systems to antennas

  • From VLA to antennas

  • From AOC to antennas

  • From NRAO to antennas

  • From non-NRAO to antennas

EVLA M&C Software PDR

May 14-15 2002


Vulnerabilities
Vulnerabilities

  • M&C systems

  • M&C/Antenna Network

  • MIB

  • Other ?

EVLA M&C Software PDR

May 14-15 2002


M c systems linux solaris windows
M&C systems (Linux, Solaris, Windows)

  • Virus

  • Root access

  • Denial of Service

  • M&C software itself

EVLA M&C Software PDR

May 14-15 2002


M c and antenna network
M&C and antenna network

  • Network Devices

    • CISCO IOS NTP vulnerability

      • Announced May 8th

    • TCP/IP stack

  • Network flooding

EVLA M&C Software PDR

May 14-15 2002


Mib vulnerabilities
MIB vulnerabilities

  • TCP/IP stack

  • Telnet (authentication)

  • HTTP server

  • NTP

  • Denial of service

    • Port flooding

  • Human Error

EVLA M&C Software PDR

May 14-15 2002


Direct access
Direct Access

  • Firewall

    • Limit access based on

      • Source IP

      • Sender Digital Certificate

        • MIB awareness

    • Throttle flooding

    • Encryption precludes content filtering

  • Can’t guarantee packet integrity

EVLA M&C Software PDR

May 14-15 2002


Indirect access
Indirect Access

  • Proxy service

    • Request proxy

    • Web Proxy

  • Virtual antenna

    • Same client software

  • Remote display

    • X11 or Citrix

      • slow

EVLA M&C Software PDR

May 14-15 2002


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