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Chapter 7. Assessing Remote Maintenance Services

This chapter covers the assessment of remote maintenance services that give direct access to servers and devices for administrative purposes. Common remote maintenance services include SSH, Telnet, X Windows, VNC, and Microsoft Terminal Services. Determined attackers concentrate on breaking remote maintenance services to obtain direct access to the target host.



    		Network Security Assessment
    		Foreword
    		Preface
    		Chapter 1. Network Security Assessment
    		Chapter 2. The Tools Required
    		Chapter 3. Internet Host and Network Enumeration
    		Chapter 4. IP Network Scanning
    		Chapter 5. Assessing Remote Information Services
    		Chapter 6. Assessing Web Services
    		Chapter 7. Assessing Remote Maintenance Services
    		7.1 Remote Maintenance Services
    		7.2 SSH
    		7.3 Telnet
    		7.4 R-Services
    		7.5 X Windows
    		7.6 Microsoft Remote Desktop Protocol
    		7.7 VNC
    		7.8 Citrix
    		7.9 Remote Maintenance Services Countermeasures
    		Chapter 8. Assessing FTP and Database Services
    		Chapter 9. Assessing Windows Networking Services
    		Chapter 10. Assessing Email Services
    		Chapter 11. Assessing IP VPN Services
    		Chapter 12. Assessing Unix RPC Services
    		Chapter 13. Application-Level Risks
    		Chapter 14. Example Assessment Methodology
    		Appendix A. TCP, UDP Ports, and ICMP Message Types
    		Appendix B. Sources of Vulnerability Information
    		Colophon