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Index: D

D command (sendmail): 10.5.2. The Define Macro Command

D flag (Linux routing table): 2.4. The Routing Table

DAEMON_OPTIONS macro (sendmail): E.3. m4 sendmail Macros

DARPA (Defense Advanced Research Projects Agency): 1.1. TCP/IP and the Internet

DATA command (SMTP): 3.4.1. Simple Mail Transfer Protocol

data delivery: 2.1. Addressing, Routing, and Multiplexing

data field (resource records): C.3.1. Standard Resource Records

Data Link Layer (OSI Model): 1.2. A Data Communications Model

Data Link Layer Protocol: 6.2.1. The Serial Protocols

data value (DNS resource records): 8.3.2. Standard Resource Records

databases

address conversion (sendmail): 10.4.1.1. Building a sendmail.cf with m4 macros

Apache, user authentication: 11.4.4.2. Improved user authentication

gpg: 12.6.2. Public-Key Encryption Tools

sendmail

address transformation: 10.6.2.1. Transforming with a database

10.8.2. Using Key Files in sendmail

local information section (configuration file): 10.7.1. Modifying Local Information

Unix r commands: 12.2.5. Secure the r Commands

databits command (dip): A.1.1. The dip Script File

datagrams: 1.3. TCP/IP Protocol Architecture

1.5.1.1. The datagram

2.2. The IP Address

forwarding: 1.5.1.4. Passing datagrams to the transport layer

fragmenting: 1.5.1.3. Fragmenting datagrams

headers: 2.6.2. Port Numbers

Appendix g.1. IP Datagram Header
protocol numbers: 2.6.1. Protocol Numbers

martians: 4.2.1. Obtaining an IP Address

Network Access Layer

IP addresses: 1.4. Network Access Layer

overview: 1.5.1.1. The datagram

routing: 1.5.1.2. Routing datagrams

datasize option (named): C.2.5. The options Statement

dbm (sendmail K command value): E.4.5. The sendmail K Command

dbmmanage command: 11.4.4.2. Improved user authentication

DCA (Defense Communications Agency): 1.1. TCP/IP and the Internet

DDN (Defense Data Network): 1.1. TCP/IP and the Internet

DDNS (Dynamic DNS): 3.6.2. Dynamic Host Configuration Protocol

deallocate-on-exit option (named): C.2.5. The options Statement

debug option (pppd): A.2. The PPP Daemon

debug option (resolv.conf file): 8.2.1. The Resolver Configuration File

debugging: 10.8.1. Testing Rewrite Rules

(see also testing)
nslookup tool: 8.4. Using nslookup
sendmail arguments: E.2. The sendmail Command

dec command (dip): A.1.1. The dip Script File

decentralized network administration: 2.2.2. Subnets

dedicated connections, pppd command, configuring: 6.3.1. The PPP Daemon

default-asyncmap option (pppd): A.2. The PPP Daemon

default command (dip): A.1.1. The dip Script File

default domain names: 3.3.3. Domain Names

default gateway: 2.4. The Routing Table

address: 4. Getting Started
addresses, need for: 4. Getting Started

default keyword (route command): 7.3. Building a Static Routing Table

default-lease-time parameter (dhcp.conf file): 9.5.1. dhcpd.conf

default-lease-time parameter (dhcpd): D.3.2. Configuration Parameters

default masks, indentifying: 2.2.3. The Natural Mask

default-mru option (pppd): A.2. The PPP Daemon

default route (network addresses): 2.2. The IP Address

defaultdomain file: 9.4. Network Information Service

DefaultIcon directive (Apache): 11.3.5. Creating a Fancy Index

defaultmetric parameter (gated): B.8.2. The rip Statement

defaultroute option (pppd): 6.3.1. The PPP Daemon

A.2. The PPP Daemon

defaults parameter (gated): B.8.1. The ospf Statement

DefaultType directive (httpd.conf file): 11.3.6. Defining File Types

Defense Advanced Research Projects Agency (DARPA): 1.1. TCP/IP and the Internet

Defense Communications Agency (DCA): 1.1. TCP/IP and the Internet

Defense Data Network (DDN): 1.1. TCP/IP and the Internet

define class command (sendmail): 10.5.3. Defining Classes

define macro command (sendmail): 10.5.2. The Define Macro Command

define macro (sendmail): E.3. m4 sendmail Macros

E.3.1. define

definition fields (sendmail mailers): 10.5.8. Defining Mailers

deflate option (pppd): A.2. The PPP Daemon

DEL command (POP): 3.4.2. Post Office Protocol

DELETE command (IMAP): 3.4.3. Internet Message Access Protocol

delete keyword

dbmmanage command: 11.4.4.2. Improved user authentication
route command: 7.3. Building a Static Routing Table

deleting email, POP servers: 3.4.2. Post Office Protocol

Delivery Status Notification (see DSN)

demand option (pppd): A.2. The PPP Daemon

denial of service (DoS): 12.1.1. Assessing the Threat

Deny from directive (Directory containers): 11.4.4. Defining Access Controls

deny keyword parameter (dhcpd): D.3.2. Configuration Parameters

depmod command (Linux): 5.1.1. Using Dynamically Loadable Modules

dequote (sendmail K command value): E.4.5. The sendmail K Command

descr field (RIPE database): 4.2.1.2. Obtaining an IN-ADDR.ARPA domain

designated routers (OSPF): 7.4.3. Open Shortest Path First

Destination Address

datagram headers: 1.5.1.1. The datagram
TCP headers: 2.2. The IP Address

Destination field

Linux routing table: 2.4. The Routing Table
routing tables: 7.2. The Minimal Routing Table

Destination field (Linux routing table): 2.4. The Routing Table

Destination Port: 1.6.2. Transmission Control Protocol

Destination Port numbers (UDP): 1.6.1. User Datagram Protocol

Destination Unreachable Message (ICMP): 1.5.2. Internet Control Message Protocol

destination values (routing tables): 2.4. The Routing Table

detail

DSN error code: 10.6.2. Transforming the Address
gated trace statements: B.4. Trace Statements

dev/cua3 argument (pppd command): 6.3.1. The PPP Daemon

device drivers

Ethernet, loading: 5.1.1. Using Dynamically Loadable Modules
installing, pkgadd command: 5.1.1. Using Dynamically Loadable Modules

DEVICE (Linux configuration value): 6.1.3. Assigning an Address

devices statement (BSD Unix kernel configuration): 5.1.5.3. The device statement

dgram field (inet.conf file): 5.3. The Internet Daemon

dh value (share command): 9.1.2.1. The share command

DHCP (Dynamic Host Configuration Protocol): 3.6.2. Dynamic Host Configuration Protocol

dhcpd file: 9.5.1. dhcpd.conf
operational principles: 3.6.2.1. How DHCP works
overview: 9.5. DHCP
system configuration information, distributing to end-users: 4.6. Informing the Users

dhcpd

command-line options: D.2. The dhcpd Command
common options: D.3.3.1. Commonly used options
compiling: D.1. Compiling dhcpd
mailing list: D.1. Compiling dhcpd
option statement: D.3.3. DHCP Options
other options: D.3.3.2. Other options
parameter statements: D.3.2. Configuration Parameters
syntax: D.2. The dhcpd Command

dhcpd.conf file: 9.5.1. dhcpd.conf

D.3. The dhcpd.conf Configuration File
parameters: 9.5.1. dhcpd.conf
range parameter: 9.5.1. dhcpd.conf
topology statements: D.3.1. Topology Statements

DHCPDISCOVER packet: 3.6.2.1. How DHCP works

DHCPOFFER packet: 3.6.2.1. How DHCP works

dial command (dip): 6.3.2. Dial-Up PPP

A.1.1. The dip Script File

dial-up connections: 6.3.1. The PPP Daemon

dip

sample script file: A.1.1.1. A sample dip script
script file: A.1.1. The dip Script File
syntax: A.1. Dial-Up IP

PPP, configuring: 6.3.2. Dial-Up PPP

pppd, syntax: A.2. The PPP Daemon

scripts, troubleshooting: 6.3.7. Troubleshooting Serial Connections

dial-up IP (see dip)

dialup option (named): C.2.5. The options Statement

dig (debugging tool): 13.6.4. dig: An Alternative to nslookup

digest (MIME data subtype): 3.4.4. Multipurpose Internet Mail Extensions

Dijkstra Shortest Path First (SPF) algorithm: 7.4.3. Open Shortest Path First

dip command: 6.3.2. Dial-Up PPP

dip (dial-up IP)

configuring: 6.3.2. Dial-Up PPP
options: A.1. Dial-Up IP
sample script file: A.1.1.1. A sample dip script
script file: A.1.1. The dip Script File
syntax: A.1. Dial-Up IP

direct delivery (SMTP): 3.4.1. Simple Mail Transfer Protocol

direct map configuration file (automounter): 9.1.4. NFS Automounter

directed graphs (OSPF): 7.4.3. Open Shortest Path First

directives

Apache

configuration: 11.3.1. Loading Dynamic Shared Objects
directory-level configuration control: 11.4.3. Directory-Level Configuration Controls
httpd process control: 11.3.3. Managing the Swarm
log files: 11.3.8.1. Defining the log file format
MIME file types: 11.3.6. Defining File Types
performance tuning: 11.3.7. Performance Tuning Directives
user authentication: 11.4.4.1. Requiring user authentication
web server document locations: 11.3.4. Defining Where Things Are Stored

BIND: 8.3.3. Zone File Directives

httpd.conf file, configuration: 11.3.2. Basic Configuration Directives

zone files, creating: C.3. Zone File Records

directories

Apache, configuration control: 11.4.3. Directory-Level Configuration Controls
indexing, Apache: 11.3.5. Creating a Fancy Index

Directory containers (Apache): 11.3.4. Defining Where Things Are Stored

server options, controlling: 11.4.2. Controlling Server Options

Directory directive (httpd.conf file): 11.3.4. Defining Where Things Are Stored

Directory field (sendmail): 10.5.8. Defining Mailers

directory option (named): C.2.5. The options Statement

directory sharing

mounting remote directories: 9.1.3. Mounting Remote Filesystems

NFS

daemons: 9.1.1. NFS Daemons
overview: 9.1. The Network File System

Samba: 9.3.1.2. Sharing directories through Samba

Unix: 9.1.2. Sharing Unix Filesystems

DirectoryIndex option (Apache): 11.3.4. Defining Where Things Are Stored

disconnect option (pppd): A.2. The PPP Daemon

distance-vector algorithms, routing: 7.4. Interior Routing Protocols

Distfiles: 9.6.2. rdist

distributed servers, managing: 9.6. Managing Distributed Servers

divert macro (sendmail): E.3. m4 sendmail Macros

dmesg command, network interfaces, determining avaliable: 6.1.1. The Interface Name

dnl command: 10.4.1.1. Building a sendmail.cf with m4 macros

dnl macro (sendmail): E.3. m4 sendmail Macros

DNS (Domain Name System): 1.7. Application Layer

authoritative servers: 3.3. DNS

BIND

configurations: 8.1.1. BIND Configurations

configuring resolvers: 8.2. Configuring the Resolver

8.2.1.1. A resolver-only configuration

directives: 8.3.3. Zone File Directives

overview: 8.1. BIND: Unix Name Service

caching-only servers, configuring: 8.3.1.1. A caching-only server configuration

compared to NIS: 3.3.5. Network Information Service

domain hierarchy: 3.3.1. The Domain Hierarchy

domains, creating: 3.3.2. Creating Domains and Subdomains

host tables and: 3.2. The Host Table

master name servers, configuring: 8.3.1.2. Master and slave server configurations

name server record pointers: 3.3.2. Creating Domains and Subdomains

named command, configuring: 8.3. Configuring named

named.conf file: 8.3.1. The named.conf File

overview: 3.3. DNS

resource records: 8.3.2. Standard Resource Records

slave servers, configuring: 8.3.1.2. Master and slave server configurations

system configuration: 4. Getting Started

top-level domains: 3.3.1. The Domain Hierarchy

Unix, BIND: 3.3.4. BIND, Resolvers, and named

dns proxy option (nmbd command): 9.3.2. NetBIOS Name Service

dns proxy parameter (smb.config file): 9.3.1. Configuring a Samba Server

dns (sendmail K command value): E.4.5. The sendmail K Command

documentation, Internet address requests: 4.2.1.1. Obtaining an official network address

DocumentRoot directive (Apache): 11.2.1. Configuring Apache on Solaris

web server document locations: 11.3.4. Defining Where Things Are Stored

domain administration: 3.3.4. BIND, Resolvers, and named

domain auth simple parameter (gated): B.8.3. The isis Statement

domain entry (resolv.conf file): 8.2.1. The Resolver Configuration File

domain field (RIPE database): 4.2.1.2. Obtaining an IN-ADDR.ARPA domain

DOMAIN macro (sendmail): E.3. m4 sendmail Macros

Domain Name Pointer (PTR) records: C.3.1.6. Domain Name Pointer record

domain name registrars: 3.3.2. Creating Domains and Subdomains

domain name servers, system configuration: 4. Getting Started

Domain Name System (see DNS)

domain names: 3.3.3. Domain Names

obtaining: 4.4.1. Obtaining a Domain Name
registering: 4.4.2. Registering a Domain

domain names (Linux): 9.1.2.2. The /etc/exports file

domain option (pppd): A.2. The PPP Daemon

domain option (share command): 9.1.2.1. The share command

domain setting (smb.config file): 9.3.1. Configuring a Samba Server

DOMAIN source file

DNS features: E.3.4. DOMAIN
DNS macros: E.3.4. DOMAIN

DOMAIN source file (sendmail): E.3.4. DOMAIN

domainname command: 9.4. Network Information Service

domains

cache initialization file: 8.3.4. The Cache Initialization File

caching-only server: 8.1.1. BIND Configurations

DNS

creating: 3.3.2. Creating Domains and Subdomains
hierarchy: 3.3.1. The Domain Hierarchy
top-level: 3.3.1. The Domain Hierarchy

downloading for inspection, nslookup command: 8.4. Using nslookup

in-addr.arpa: 4.2.1.2. Obtaining an IN-ADDR.ARPA domain

master name server: 8.1.1. BIND Configurations

NIS: 9.4. Network Information Service

slave server: 8.1.1. BIND Configurations

zones: 8.1. BIND: Unix Name Service

domaintable (sendmail database feature): E.3.2. FEATURE

DoS (denial of service): 12.1.1. Assessing the Threat

dotted decimal notation (IP addresses): 2.2. The IP Address

down preference (gated): B.6. Interface Statements

draft standards (RFCs): 1.1.2. Protocol Standards

Driver Options field (printconf-gui): 9.2.1.1. The printcap file

DROP keyword (iptables command): 12.7.2.1. Defining iptables filter rules

dsmtp mailer: 10.4.1.1. Building a sendmail.cf with m4 macros

DSN (Delivery Status Notification), error codes: 10.6.2. Transforming the Address

DSO (Dynamic Shared Object): 11.3.1. Loading Dynamic Shared Objects

dump-file option (named): C.2.5. The options Statement

dump files

cache & data section: 13.6.3.2. The Cache & Data section
hints section: 13.6.3.3. The Hints section
zone tables: 13.6.3.1. The zone table section

dumpdb command: 13.6.3. Cache Corruption

DURATION option (xinetd): 12.5.2. Controlling Access with xinetd

dynamic address allocation, dhcpd.conf file: 9.5.1. dhcpd.conf

dynamic assignment: 4.2.2. Assigning Host Addresses

dynamic-bootp argument (dhcpd range parameter): 9.5.1. dhcpd.conf

dynamic-bootp-lease-cutoff parameter: 9.5.1. dhcpd.conf

dhcpd: D.3.2. Configuration Parameters

dynamic-bootp-lease-length parameter: 9.5.1. dhcpd.conf

dhcpd: D.3.2. Configuration Parameters

Dynamic DNS (DDNS): 3.6.2. Dynamic Host Configuration Protocol

Dynamic Host Configuration Protocol (see DHCP)

dynamic routing: 7.1. Common Routing Configurations

dynamic routing tables: 4.3. Planning Routing

Dynamic Shared Object (DSO): 11.3.1. Loading Dynamic Shared Objects

dynamically allocated ports: 2.6.3. Sockets

dynamically assigning addresses: 3.6.2. Dynamic Host Configuration Protocol

dynamically loadable modules: 5.1.1. Using Dynamically Loadable Modules

httpd.conf file: 11.3.1. Loading Dynamic Shared Objects

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