RHCP (Remote Host Configuration Protocol)

1
RHCP (Remote Host Configuration Protocol)

• Configuring a Remote Host in a User-Friendly
  Manner

Jenq-Haur Wang, Tzao-Lin Lee f3506002,
tl_lee_at_csie.ntu.edu.tw
Dept. of Computer Science and Information
Engineering, National Taiwan University, Taipei,
Taiwan
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Contents

• Introduction
• The configuration user interface
• The configuration environment
• RHCP the protocol
• RHCP vs. DHCP
• Discussion
• Conclusion

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Introduction

• System Administration
• User, Hardware, Software, Backup, Monitoring,
  Troubleshooting, Security
• Network Management
• General parameters configuration files
• Specific servers get, unpack, configure, make,
  run
• Diagnostics

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Host Configuration

• Configuring a remote host in Linux
• Console
• Telnet
• DHCP ? clients
• RHCP ? servers

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The User Interface

• HTML CGI
• Steps in Configuring a Remote Host
• Authentication
• Getting Parameters
• system related
• server-dependent
• Making Modifications
• Confirmation of Parameter Modifications

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Authentication
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General Parameters
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Server-Specific Parameters
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Parameter Confirm
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Configuration Environment
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The Functions of Components

• Configuration Client actively request
• Configuration Server ( CGI) authentication
  parameter verification, ? gateway to the Host
• Configuration Daemon (on the Host)
  authentication parameter verification, getting
  setting parameters

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RHCP the Protocol
The Time Diagram
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Tasks for each Component
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The Message Format
Authentication key
Op RHCP_GET, RHCP_SET, RHCP_ACK, RHCP_NAK,
RHCP_FINAL
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The Security Policy

• Authentication key
• timestamp
• hardware address
• access times
• Security policy
• client pass
• server decode, check
• daemon generate, encode, decode, check

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The Security Policy
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RHCP vs. DHCP
Differences between RHCP and DHCP
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Interoperations between RHCP DHCP
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RHCP DHCP

• Clients dynamic IPs ? DHCP
• Servers fixed IPs ? RHCP
• Routers, gateways, firewalls multi-interface ?
  RHCP

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Discussion

• RHCP DHCP server combined?
• RHCP on Multi-platform?
• Why another protocol besides DHCP?
• HTMLCGI?

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Conclusion

• Configuration files
• User-friendly
• DHCPRHCP
• LAN management convenience security
• RHCP homepage http//www.oaserver.ntu.edu.tw/RHCP
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