Index

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# Index: C

capturing intruders : 13.3. Pursuing and Capturing the Intruder
catastrophe logs : 5.8.1.4. Safeguard the system logs
CD-ROM drive : 5.3.3. What Hardware Configuration?
CERN HTTP daemon : B.5.2. CERN httpd
CERN HTTP server : 8.6.2. Proxying Characteristics of HTTP
CERT-CC response teams
  13.4.4.2. CERT-CC and other incident response teams
  A.2.2. info.cert.org
  A.3.5. CERT-Advisory
  A.5.1. CERT-CC
  contacting regarding incident : 13.1.4.2. CERT-CC or other incident response teams
CGI (Common Gateway Interface) : 8.6.3.1. What can a malicious client do to your HTTP server?
challenge-response system
  10.2.2. Something You Know
  10.3.3. Challenge-Response Schemes
checksums : 5.8.5.3. About checksums for auditing
  keeping secure : 13.5.3. Keeping Secured Checksums
  using Tripwire for : 5.8.5.1. Auditing packages
choke points
  3.3. Choke Point
  9.1.4.3. Choke point
  9.2.3.3. Choke point
  using router as : 6.1. Why Packet Filtering?
choke router : (see interior router)
choot mechanism : 5.3.1. What Operating System?
chroot command : 8.2.1.3. Providing anonymous FTP service
chrootuid program : B.6.3. chrootuid
circuit-level proxy servers : 7.3.1. Application-Level Versus Circuit-Level Proxies
Cisco routers : 6.5. Conventions for Packet Filtering Rules
client
  authentication, network filesystems and : 2.12. Network File Systems
  internal versus external : 7.4.5. Internal Versus External Clients
  port numbers : 8. Configuring Internet Services
  software for proxying : 7.2.1. Using Custom Client Software for Proxying
clocks
  configuring : 8.13. Network Time Protocol (NTP)
  setting : 2.11. Time Service
COAST
  A.1.2. COAST
  A.2.1. coast.cs.purdue.edu
command channel attacks : 8.1. Electronic Mail
command execution : 2.3. Remote Terminal Access and Command Execution
command-line bugs : 8.1. Electronic Mail
commenting out lines : 5.8.2.2. How to disable services
commercial authentication systems : 10.4.3. Commercial Solutions
Common Gateway Interface (CGI) : 8.6.3.1. What can a malicious client do to your HTTP server?
computer viruses : 1.4.2.4. A firewall can't protect against viruses
conferencing services, real-time : 2.8. Real-Time Conferencing Services
  configuring : 8.9. Real-Time Conferencing Services
configuring
  Archie : 8.7.3. Archie
  audit packages : 5.8.5.2. Use the auditing packages
  clocks : 8.13. Network Time Protocol (NTP)
  DNS (Domain Name Service) : 8.10. Domain Name System (DNS)
    in screened host architecture : 9.2.1.6. DNS
    in screened subnet architecture : 9.1.1.6. DNS
  email : 8.1. Electronic Mail
  exterior routers : 9.1.2.2. Exterior Router
  FSP (File Service Protocol) : 8.2.3. File Service Protocol (FSP)
  FTP (File Transfer Protocol) : 8.2.1. File Transfer Protocol (FTP)
    in screened host architecture : 9.2.1.2. FTP
    in screened subnet architecture : 9.1.1.2. FTP
  Gopher : 8.7.1. Gopher
  hardware : 5.3.3. What Hardware Configuration?
  HTTP (Hypertext Transfer Protocol)
    in screened host architecture : 9.2.1.5. HTTP
    in screened subnet architecture : 9.1.1.5. HTTP
  information lookup services : 8.8. Information Lookup Services
  interior router : 9.1.2.1. Interior Router
  Internet services : 8. Configuring Internet Services
  IRC (Internet Relay Chat) : 8.9.2. Internet Relay Chat (IRC)
  kernel : 5.8.4.1. Reconfigure and rebuild the kernel
  labeling system : 13.5.2. Labeling and Diagraming Your System
  machine : 5.8.4. Reconfiguring for Production
  MBONE (Multicast Backbone) : 8.9.3. The Multicast Backbone (MBONE)
  network management services : 8.12. Network Management Services
  NFS (Network File System) : 8.14. Network File System (NFS)
  NIS/YP (Network Information Service) : 8.15. Network Information Service/Yellow Pages (NIS/YP)
  NNTP (Network News Transfer Protocol) : 8.5. Network News Transfer Protocol (NNTP)
    in screened host architecture : 9.2.1.4. NNTP
    in screened subnet architecture : 9.1.1.4. NNTP
  packet filtering router : 6.2. Configuring a Packet Filtering Router
  ping program : 8.12.3. ping
  printing protocols : 8.17. Printing Protocols (lpr and lp)
  "r" commands : 8.4.1. BSD `r' Commands
  real-time conferencing services : 8.9. Real-Time Conferencing Services
  RIP (Routing Information Protocol) : 8.12.2. Routing Information Protocol (RIP)
  SMTP (Simple Mail Transfer Protocol)
    in screened host architecture : 9.2.1.3. SMTP
    in screened subnet architecture : 9.1.1.3. SMTP
    with firewalls : 8.1.1.6. Configuring SMTP to work with a firewall
  SNMP (Simple Network Management Protocol) : 8.12.1. Simple Network Management Protocol (SNMP)
  syslog : 8.11. syslog
  Telnet : 8.3. Terminal Access (Telnet)
    in screened host architecture : 9.2.1.1. Telnet
    in screened subnet architecture : 9.1.1.1. Telnet
  TFTP (Trivial File Transport Protocol) : 8.2.2. Trivial File Transfer Protocol (TFTP)
  TNP (Network Time Protocol) : 8.13. Network Time Protocol (NTP)
  traceroute program : 8.12.4. traceroute
  UUCP (UNIX-to-UNIX Copy Protocol) : 8.2.4. UNIX-to-UNIX Copy Protocol (UUCP)
  WAIS (Wide Area Information Servers) : 8.7.2. Wide Area Information Servers (WAIS)
  WWW (World Wide Web) and HTTP : 8.6. World Wide Web (WWW) and HTTP
  X11 Window wystem : 8.16. X11 Window System
connections
  between Internet and unbuilt bastion host : 5.8. Building a Bastion Host
  checking network : (see ping program)
  disconnecting after incident : 13.1.2. Disconnect or Shut Down, as Appropriate
  disconnecting machine : 13.4.3. Planning for Disconnecting or Shutting Down Machines
  killed by TCP : 6.3.3.1. TCP
  multiple Internet : 4.3.6. It's OK to Use Multiple Exterior Routers
  unidirectional versus multidirectional : 7.4.2. Unidirectional Versus Multidirectional Connections
COPS (Computer Oracle and Password System) : B.2.1. COPS
  auditing package : 5.8.5.1. Auditing packages
crashes, system : 5.10.1. Watch Reboots Carefully
CRC (cyclic redundancy counter) : 5.8.5.3. About checksums for auditing
crypt program : 5.8.2.2. How to disable services
cryptographic checksum algorithms : 5.8.5.3. About checksums for auditing
cryptography : 10. Authentication and Inbound Services
CSRC (Computer Security Resource Clearinghouse) : A.5.3. NIST CSRC
custom
  client software for proxying : 7.2.1. Using Custom Client Software for Proxying
  system : 13.1.6. Restore and Recover
  user procedures for proxying : 7.2.2. Using Custom User Procedures for Proxying
cyclic redundancy counter (CRC) : 5.8.5.3. About checksums for auditing

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