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Index: C

C command (sendmail): Defining Classes
C flag (Linux routing table): The Routing Table
cable testers: Diagnostic Tools
cables (Ethernet), length restrictions: Defining the Subnet Mask
cache initialization file: The Cache Initialization File
CacheDefaultExpire option (proxy server caching): Proxy Servers and Caching
CacheGcInterval option (proxy server caching): Proxy Servers and Caching
CacheLastModifiedFactor option (proxy server caching): Proxy Servers and Caching
CacheMaxExpire option (proxy server caching): Proxy Servers and Caching
CacheNegotiatedDocs option (proxy server caching): Proxy Servers and Caching
CacheRoot option (proxy server caching): Proxy Servers and Caching
caches
- DNS: DNS
- dump files
- - cache & data section: The Cache & Data section
  - hints section: The Hints section
  - zone tables: The zone table section
- name servers, troubleshooting: Cache Corruption
- proxy servers, options: Proxy Servers and Caching
- routing tables: The Routing Table
CacheSize option (proxy server caching): Proxy Servers and Caching
caching-only servers: BIND, Resolvers, and named
- BIND Configurations
- configuration: caching-only server configuration
- configuration files: The named.local File
Caldera Linux httpd.conf file, location: Configuring the Apache Server
call option (pppd): The PPP Daemon
cannot connect error (SMTP): Simple Mail Transfer Protocol
canonical names: The Forward-Mapping Zone File
CANONIFY_DOMAIN macro (sendmail): sendmail Macros
CANONIFY_DOMAIN_FILE macro (sendmail): sendmail Macros
CAs (Certificate Authorities): Using Encryption
cat command (gpg): Public-Key Encryption Tools
category clause (named logging statement): The logging Statement
cdtrcts option (pppd): The PPP Daemon
CERT (Computer Emergency Response Team) website: Use the network to distribute information
certificates: Using Encryption
- CAs: Using Encryption
- validity of: Using Encryption
cf/cf directory (sendmail sample configuration files): Locating a Sample sendmail.cf File
CGI (Common Gateway Interface), security considerations: The CGI and SSI Threat
changed field (RIPE database): Obtaining an IN-ADDR.ARPA domain
CHAP (Challenge Handshake Authentication Protocol): PPP Daemon Security
chap-interval option (pppd): The PPP Daemon
chap-max-challenge option (pppd): The PPP Daemon
chap-restart option (pppd): The PPP Daemon
chap-secrets file: PPP Daemon Security
Charset field (sendmail): Defining Mailers
chat: chat
- escape sequences: chat
- keywords: chat
- options: chat
- overview: chat
- syntax: chat
- termination code: chat
chat command: chat
chat scripts, PPP: chat
chatkey command (dip): The dip Script File
check keyword (dbmmanage command): Improved user authentication
check-names option (named): The options Statement
checksums, TCP: Transmission Control Protocol
chkconfig command (Apache): Using the Red Hat Package Manager
CIDR (Classless Inter-Domain Routing): CIDR Blocks and Route Aggregation
class (DSN error code): Transforming the Address
class field (resource records): Standard Resource Records
classes
- IP addresses: The Natural Mask
- sendmail: Defining Classes
classful routing: Running RIP with routed
Classless Inter-Domain Routing (CIDR): CIDR Blocks and Route Aggregation
cleaning-interval option (named): The options Statement
ClearModuleList directive (httpd.conf file): Loading Dynamic Shared Objects
client field (chap-secrets file): PPP Daemon Security
clients, NFS: The Network File System
CLOSE command (IMAP): Internet Message Access Protocol
CNAME (Canonical Name) records: Canonical Name record
- forward-mapping zone files: The Forward-Mapping Zone File
Collis field (netstat command): The Interface Name
com domain: The Domain Hierarchy
commands
- IMAP: Internet Message Access Protocol
- POP: Post Office Protocol
- SMTP: Simple Mail Transfer Protocol
- - source code: Simple Mail Transfer Protocol
comment parameter (smb.config file): The smb.conf homes section
comments
- automounter configuration file: NFS Automounter
- host table: The Host Table
- inittab file: Understanding /etc/inittab
Common Gateway Interface (see CGI)
communications, OSI Model: Data Communications Model
compiler options, sendmail: Compiling sendmail
compiling
- dhcpd: Compiling dhcpd
- sendmail: Compiling sendmail
conditionals, sendmail macros: Conditionals
config command (dip): The dip Script File
configuration
- Apache
- - overview: Configuring the Apache Server
  - Solaris: Configuring Apache on Solaris
- auto_master file: NFS Automounter
- automounter: NFS Automounter
- BIND: BIND Configurations
- caching-only servers: caching-only server configuration
- DHCP
- - dhcpd file: dhcpd.conf
  - overview: DHCP
- dip (dial-up IP): Dial-Up PPP
- DNS, resource records: Standard Resource Records
- email networks: Planning Your Mail System
- files, Unix startup: Startup Files
- gated: Configuring gated
- - exterior gateways: Exterior gateway configuration
  - host: host configuration
  - interior gateways: Interior gateway configurations
  - samples: Sample gated.conf Configurations
  - testing: Testing the Configuration
- httpd.conf file
- - directives: Basic Configuration Directives
  - dynamically loadable modules: Loading Dynamic Shared Objects
  - overview: Understanding an httpd.conf File
- ifconfig startup files: Putting ifconfig in the startup scripts
- IMAP servers: IMAP Server
- information, distributing: Informing the Users
- interfaces, Linux file locations: Assigning an Address
- kernel
- - dynamically loadable modules: Using Dynamically Loadable Modules
  - overview: Kernel Configuration
- Line Printer: Line Printer Service
- Linux kernel: Linux Kernel Configuration
- - Ethernet: Linux Kernel Configuration
  - help: Linux Kernel Configuration
  - options: Linux Kernel Configuration
- loopback interface, Solaris: The Interface Name
- macro configuration file: MAILER
- master name servers: Master and slave server configurations
- named command: Configuring named
- NFS, exports file: The /etc/exports file
- options: Linux Kernel Configuration
- POP servers: POP Server
- PPP
- - chat scripts: chat
  - dial-up connections: Dial-Up PPP
  - servers: PPP Server Configuration
  - Solaris: Solaris PPP
- pppd command, dedicated connections: The PPP Daemon
- printcap file: The printcap file
- resolvers: Configuring the Resolver
- - sample: resolver-only configuration
- routing: Common Routing Configurations
- Samba name server: NetBIOS Name Service
- Samba servers: Configuring a Samba Server
- sendmail
- - define class command: Defining Classes
  - define macro command: The Define Macro Command
  - headers command: Defining Mail Headers
  - m4 macros: sendmail Macros
  - mailers command: Defining Mailers
  - overview: sendmail.cf Configuration Language
  - precedence command: Defining Mail Precedence
  - set option command: Setting Options
  - set ruleset command: The Set Ruleset Command
  - testing: The sendmail Command
  - trusted users command: Defining Trusted Users
  - version level command: The Version Level Command
- sendmail.cf file: More sendmail.cf
- - creating with m4 macros: Building a sendmail.cf with m4 macros
  - local information: Modifying Local Information
  - modifying: Modifying a sendmail.cf File
  - Options section: Modifying Options
  - overview: The sendmail.cf File
  - samples: Locating a Sample sendmail.cf File
  - structure: General sendmail.cf Structure
  - testing: Testing sendmail.cf
  - testing rewrite rules: Testing Rewrite Rules
- slave servers: Master and slave server configurations
- startup files, static routing and: Installing static routes at startup
- system, planning: Getting Started
configuration commands (named.conf file): The named.conf File
configuration files
- BSD Unix: The BSD Kernel Configuration File
- - devices statement: The device statement
  - options statement: The options statement
  - pseudo-device statement: The pseudo-device statement
- Solaris: Using Dynamically Loadable Modules
- - syslog.conf: The Host Table
configuration servers
- DHCP: Dynamic Host Configuration Protocol
- overview: Configuration Servers
- RARP: Reverse Address Resolution Protocol
connect-delay option (pppd): The PPP Daemon
connect option (pppd): The PPP Daemon
connect option (pppd command): chat
connected networks: Connected and Non-Connected Networks
connection-orientation, TCP: Transmission Control Protocol
connections
- point-to-point, defining with ifconfig command: Point-to-point
- troubleshooting with ping command: Testing Basic Connectivity
- - The ping Command
Content-Transfer-Encoding header (MIME): Multipurpose Internet Mail Extensions
Content-Type header (MIME): Multipurpose Internet Mail Extensions
control script (system initialization): Understanding /etc/inittab
control statements (gated): Control Statements
controls statement (named command): The controls Statement
coop domain: The Domain Hierarchy
core gateways: Internet Routing Architecture
coresize option (named): The options Statement
cost
- address translation: Obtaining an IP Address
- Internet connection considerations: Connected and Non-Connected Networks
- routing: Routing Information Protocol
- routing metric: Metric
counting to infinity problem (routing): Running RIP with routed
- avoiding: Running RIP with routed
cron command, security considerations: Looking for Trouble
crtscts option (pppd): The PPP Daemon
crtscts option (pppd command): The PPP Daemon
- configuring PPP servers: PPP Server Configuration
Cybercop (automated system monitoring): Automated Monitoring
cyrus mailer: MAILER

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