TCP/IP Network Administration- P1

TCP/IP Network Administration
By Craig Hunt; ISBN 1-56592-322-7, 630 pages.
Second Edition, December 1997.
(See the catalog page for this book.)
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Index
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Table of Contents
Preface
Chapter 1: Overview of TCP/IP
Chapter 2: Delivering the Data
Chapter 3: Network Services
Chapter 4: Getting Started
Chapter 5: Basic Configuration
Chapter 6: Configuring the Interface
Chapter 7: Configuring Routing
Chapter 8: Configuring DNS Name Service
Chapter 9: Configuring Network Servers
Chapter 10: sendmail
Chapter 11: Troubleshooting TCP/IP
Chapter 12: Network Security
Chapter 13: Internet Information Resources
Appendix A: PPP Tools
Appendix B: A gated Reference
Appendix C: A named Reference
Appendix D: A dhcpd Reference
Appendix E: A sendmail Reference
Appendix F: Selected TCP/IP Headers
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TCP/IP Network Administration

The Networking CD
Bookshelf Navigation
Copyright © 1999 O'Reilly & Associates. All Rights Reserved.
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Index: Symbols and Numbers
6-bit serial lines, running over : 5.2. Linux Kernel Configuration
7bit encoding type :
3.4.3. Multipurpose Internet Mail Extensions
8bit encoding type :
3.4.3. Multipurpose Internet Mail Extensions
'' (apostrophes) (expect nothing) :
6.3.3. chat
apostrophes ('') (expect nothing) :
A.3. chat
* (asterisk)
meaning interface not enabled :
6.1.1. Determining the Interface Name
in name field, indicating wildcard character :
C.3.1. Standard Resource Records
@ (at sign)
for current origin :
C.3.1. Standard Resource Records
excluding an individual parameter :
9.4. A BOOTP Server
referencing current domain :

8.3.5. The Reverse Domain File
\ (backslash) escaping newline characters
9.2.1. The printcap File
A.3. chat
C.3.1. Standard Resource Records
: (colon)
beginning and ending fields
9.2.1. The printcap File
9.2.2. Solaris Line Printer Service
separating parameters :
9.4. A BOOTP Server
{} (curly braces)
configuration statements
7.7.1.1. A host configuration
B.2. The gated Configuration Language
D.3. The dhcpd.conf Configuration File
long variable names :
10.5. sendmail Configuration
macro names :
10.5.2. The Define Macro Command
.. (dots) for domain name :
C.3.1. Standard Resource Records
- (minus) (non-equivalent host) :
12.2.5. Secure the r Commands
-> (arrow), for copying files :
9.6.1. rdist
() (parentheses), for continuation characters :
C.3.1. Standard Resource Records
; (semicolon)
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comment character : C.3.1. Standard Resource Records
ending gated configuration statements
7.7.1.1. A host configuration
B.2. The gated Configuration Language
# (sharp sign) for comments
3.2. The Host Table
5.4. The Internet Daemon
7.7.1.1. A host configuration
9.1.4. NFS Automounter
9.2.1. The printcap File
9.4. A BOOTP Server
A.1.1. The dip Script File
D.3. The dhcpd.conf Configuration File
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Copyright © 1999 O'Reilly & Associates, Inc. All Rights Reserved.
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Index: A
ABORT keyword : A.3. chat
Abstract Syntax Notation One (ASN.1) :
11.9. Simple Network Management Protocol
access control :

12.5. Access Control
levels of :
9.1.2.1. The share command
services to place under, listed :
12.5.1. wrapper
software for :
12.5. Access Control
ACKD command, in POP :
3.4.2. Post Office Protocol
Acknowledgment (ACK) bit set :
1.6.2. Transmission Control Protocol
Acknowledgment Number field :
1.6.2. Transmission Control Protocol
adaptive protocol value :
6.4.1. slattach
Address Resolution Protocol : (see
ARP)
addresses
1.1.1. TCP/IP Features
1.7. Application Layer
2.1. Addressing, Routing, and Multiplexing
(see also
IP addresses)
(see also
leases on addresses)
allocating
dynamically :
3.6.1. Dynamic Host Configuration Protocol
manually :
3.6.1. Dynamic Host Configuration Protocol

assigning
in blocks :
4.2.1.1. Assigning host addresses
in contiguous blocks
2.2.2. Classless IP Addresses
B.11. The Aggregate Statements
in DHCP :
3.6.1. Dynamic Host Configuration Protocol
broadcast
2.2.2.1. Final notes on IP addresses
2.6. Address Resolution
4. Getting Started
6.1. The ifconfig Command
6.1.2. Checking the Interface with ifconfig
limited :
3.6. Bootstrap Protocol
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setting : 6.1.4. Setting the Broadcast Address
specifying :
4.2.2. Defining the Subnet Mask
classes of
1.7. Application Layer
2.2.1. Address Classes
4.2.1. Obtaining an IP Address
class rules :
7.4.1.1. Running RIP with routed
converting :
10.6.3. The Set Ruleset Command

email
processing :
10.6.3. The Set Ruleset Command
simplified :
10.5.3. The Define Class Command
gateway : (see
gateway)
getting in pppd :
6.3.2. Dial-Up PPP
host :
2.2.1. Address Classes
assigning :
4.2.1.1. Assigning host addresses
Internet-style :
10.7.1. Modifying Local Information
mask, written in hexadecimal :
6.1.2. Checking the Interface with ifconfig
mixtures of in DHCP :
3.6.1. Dynamic Host Configuration Protocol
multiple :
8.2.1. The Resolver Configuration File
numeric :
3.1. Names and Addresses
processing
by several rewrite rules :
10.6.2. Transforming the Address
verifying :
10.8. Testing sendmail.cf
recipient :
10.6.3. The Set Ruleset Command

records of :
C.3.1.3. Address record
reserved
2.2.1. Address Classes
2.2.2.1. Final notes on IP addresses
resolution of :
2.6. Address Resolution
sender
10.6.3. The Set Ruleset Command
10.8.1. Testing Rewrite Rules
spoofing
4.2.1. Obtaining an IP Address
5.2. Linux Kernel Configuration
timing out :
3.6.1. Dynamic Host Configuration Protocol
translating :
5.2. Linux Kernel Configuration
admin alias :
10.3. sendmail Aliases
administration : (see
network, administration)
admintool
9.2.2. Solaris Line Printer Service
12.2.1. The Shadow Password File
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adventurous users, supporting : 9.7.2. IMAP Server
aggregate statements (in gated) :
B.11. The Aggregate Statements

alarms provided by monitors :
11.9. Simple Network Management Protocol
algorithms
back-off :
9.4. A BOOTP Server
Dijkstra Shortest Path First (SPF) :
7.4.3. Open Shortest Path First
distance-vector :
7.4. Interior Routing Protocols
aliases :
2.7.2. Port Numbers
file :
10.3. sendmail Aliases
processing addresses against :
10.6.3. The Set Ruleset Command
for hostnames :
8.3.6. The named.hosts File
in sendmail :
10.1. sendmail's Function
aliases file
3.4.1. Simple Mail Transfer Protocol
9.3. Network Information Service
AliasFile option :
10.5.4. The Set Option Command
allmulti parameter :
6.1.5.5. Point-to-point
alternative multipart subtype :
3.4.3. Multipurpose Internet Mail Extensions
America Online (AOL) :
4.1. Connected and Non-Connected Networks

Andrew File System :
3.7.1. File Sharing
anonymous FTP :
13.2. Anonymous FTP
ANY query :
11.6. Checking Name Service
apostrophes ('') (expect nothing)
6.3.3. chat
A.3. chat
Application Layer :
1.2. A Data Communications Model
in TCP/IP :
1.7. Application Layer
applications
content type :
3.4.3. Multipurpose Internet Mail Extensions
protocols for :
2.7.2. Port Numbers
widely implemented :
1.7. Application Layer
security issues concerning :
12.3. Application Security
archie :
13.3.1. archie
client software :
13.3.1.1. archie client software
servers :
13.3.1. archie
archie.internic.net :
13.3.1. archie

ARCnet interface :
5.2. Linux Kernel Configuration
area border routers :
7.4.3. Open Shortest Path First
ARP (Address Resolution Protocol)
2.6. Address Resolution
2.8. Summary
3.5.1. Reverse Address Resolution Protocol
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Index
command
2.6. Address Resolution
5.3.1.1. Options
in troubleshooting :
11.4.2. Troubleshooting with the arp Command
in troubleshooting :
11.2. Diagnostic Tools
enabling :
6.1.5.2. ARP and trailers
proxy server for :
5.3.1.1. Options
support in BSD :
5.3.1.2. Pseudo-device
table :
A.1.1. The dip Script File
viewing contents of :
11.4.2. Troubleshooting with the arp Command
ARPA Internet Text Messages :
3.4.3. Multipurpose Internet Mail Extensions

ARPANET
1.1. TCP/IP and the Internet
1.5.1.1. The datagram
2.4. Internet Routing Architecture
6.2. TCP/IP Over a Serial Line
arrow (->), for copying files :
9.6.1. rdist
AS path
operators, listed :
B.10. Control Statements
vector :
B.10. Control Statements
ASCII data (US) :
3.4.3. Multipurpose Internet Mail Extensions
aspppd.cf file :
6.3.6. Solaris PPP
Assigned Numbers RFC
2.7. Protocols, Ports, and Sockets
C.3.1.7. Host Information record
assumptions, making
11.1.1. Troubleshooting Hints
11.8. Protocol Case Study
asterisk (*)
meaning interface not enabled :
6.1.1. Determining the Interface Name
in name field, indicating wildcard character :
C.3.1. Standard Resource Records
asynchronous modems : (see
modems)
Asynchronous PPP Daemon (aspppd) :

6.3.6. Solaris PPP
at sign (@)
for current origin :
C.3.1. Standard Resource Records
excluding an individual parameter :
9.4. A BOOTP Server
referencing current domain :
8.3.5. The Reverse Domain File
at, files run by, in security checks :
12.4.2. Looking for Trouble
audio data content :
3.4.3. Multipurpose Internet Mail Extensions
authentication
1.7. Application Layer
4.2.1. Obtaining an IP Address
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9.3.2. NIS+
12.2. User Authentication
(see also
packet)
(see also
user authentication)
DES-encrypted :
9.3.2. NIS+
in pppd
6.3.4. PPP Daemon Security
A.2. The PPP Daemon
server :

9.1.5. NFS Authentication Server
authoritative servers
1.7. Application Layer
3.3. Domain Name Service
3.3.4. BIND, resolver, and named
(see also
non-authoritative servers)
auto_direct file :
9.1.4. NFS Automounter
auto_home file :
9.1.4. NFS Automounter
auto_master file :
9.1.4. NFS Automounter
auto-revarp parameter :
6.1.5.5. Point-to-point
autofs script :
9.1.4. NFS Automounter
Automatic Call Unit (ACU) :
6.3.6. Solaris PPP
automount :
9.1.4. NFS Automounter
command :
9.1.4. NFS Automounter
configuration files (maps) for :
9.1.4. NFS Automounter
filesystem (autofs), defining :
9.1.4. NFS Automounter
automounter daemon (automountd) :
9.1.4. NFS Automounter
autonomous systems (AS)

2.4. Internet Routing Architecture
7.4. Interior Routing Protocols
defined :
7.5. Exterior Routing Protocols
external (ASE) routes
7.7.1.3. Exterior gateway configuration
B.8.1. The ospf Statement
B.10.1. The import Statement
types of :
B.10.2. The export Statement
listing of :
B.10. Control Statements
number (ASN)
4.3.1. Obtaining an autonomous system number
B.7. Definition Statements
B.8.5. The bgp Statement
subdividing :
7.4.3. Open Shortest Path First
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Index
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Index: B
back-off algorithms : 9.4. A BOOTP Server
backbones
7.4.3. Open Shortest Path First
7.7.1.2. Interior gateway configurations
backslash (\) escaping newline characters
9.2.1. The printcap File
A.3. chat
C.3.1. Standard Resource Records
bandwidth
increasing :
5.2. Linux Kernel Configuration
using efficiently
7.4.1.1. Running RIP with routed
8.3.1.1. Configuring a caching-only nameserver
base64 encoding type :
3.4.3. Multipurpose Internet Mail Extensions
basic audio subtype :
3.4.3. Multipurpose Internet Mail Extensions
Basic Encoding Rules (BER) :
11.9. Simple Network Management Protocol
basic terminology : (see
terminology, importance of using standard)
bastion host :
12.7. Firewalls
Berkeley Internet Name Domain : (see
BIND)
BGP (Border Gateway Protocol)
Preface

2.4. Internet Routing Architecture
4.3.1. Obtaining an autonomous system number
7.5. Exterior Routing Protocols
7.5.2. Border Gateway Protocol
enabling (in gated)
7.7.1.3. Exterior gateway configuration
B.10. Control Statements
inside autonomous systems :
7.7.1.3. Exterior gateway configuration
statement (in gated) :
B.8.5. The bgp Statement
bi-lateral agreements :
2.4. Internet Routing Architecture
binary
data :
3.4.3. Multipurpose Internet Mail Extensions
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encoding type : 3.4.3. Multipurpose Internet Mail Extensions
BIND (Berkeley Internet Name Domain)
Preface
UNIX Versions
3.3.4. BIND, resolver, and named
8.1. BIND: UNIX Name Service
11.2. Diagnostic Tools
configuration types :
8.1.1. BIND Configurations
debugging :
8.4. Using nslookup

bit masks :
2.2.2. Classless IP Addresses
bit sets :
1.6.2. Transmission Control Protocol
blackhole
interface :
B.6. Interface Statements
route :
B.9. static Statements
bogusns command
11.6.3. Cache corruption
C.2. named.boot Configuration Commands
bookptab file
9.4. A BOOTP Server
9.6.1. rdist
configuration parameters :
9.4.2. BOOTP extensions
updating :
9.4.2. BOOTP extensions
Boolean values
in dhcpd parameters :
9.5.1. dhcpd.conf
in printcap parameters :
9.2.1. The printcap File
boot
directory (hd) defined :
9.4. A BOOTP Server
file (bf) parameter :
9.4. A BOOTP Server
scripts, starting daemons from :

9.1.1. NFS Daemons
BOOTP (Bootstrap Protocol)
Preface
3.6. Bootstrap Protocol
A.1.1. The dip Script File
clients :
D.3.2. Configuration Parameters
expanded by DHCP :
3.6.1. Dynamic Host Configuration Protocol
bootp-2.4.3.tar file :
9.4.2. BOOTP extensions
bootp-DDS2.4.3.tar file :
9.4. A BOOTP Server
bootpd (BOOTP daemon) :
9.4. A BOOTP Server
bootpd file :
9.6.1. rdist
bootpgw (BOOTP gateway) :
9.4.1. BOOTP gateway
BOOTREPLY packet :
3.6. Bootstrap Protocol
BOOTREQUEST packet
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3.6. Bootstrap Protocol
9.4. A BOOTP Server
9.4.1. BOOTP gateway
9.5.1. dhcpd.conf
Bootstrap Protocol : (see

BOOTP)
Border Gateway Protocol : (see
BGP)
border routers :
7.7.1.3. Exterior gateway configuration
braces ({})
configuration statements
7.7.1.1. A host configuration
B.2. The gated Configuration Language
D.3. The dhcpd.conf Configuration File
long variable names :
10.5. sendmail Configuration
macro names :
10.5.2. The Define Macro Command
breakdowns : (see
disaster recovery plans)
broadcast addresses : (see
addresses)
browsers :
13.1. The World Wide Web
BSD systems
kernel configuration file :
5.3. The BSD Kernel Configuration File
remounting filesystems on :
9.1.3.2. The vfstab and fstab files
BSD-Compress scheme :
A.2. The PPP Daemon
buffer overruns :
6.1.5.4. Maximum transmission unit
byte-oriented masks :

2.3. Subnets
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Index: C
cable tester
11.2. Diagnostic Tools
11.3.1. The ping Command
11.4.3. Checking the Interface with netstat
cables
Category 5 :
11.4.4. Subdividing an Ethernet
checking
6.4.4. Troubleshooting Serial Connections
11.4.3. Checking the Interface with netstat
11.4.4.1. Network hardware problems
Unshielded Twisted Pair (UTP) :
11.4.4. Subdividing an Ethernet
cache :
3.3. Domain Name Service
corruption :
11.6.3. Cache corruption
initialization file :

8.3.3. The Cache Initialization File
single answers :
3.3.4. BIND, resolver, and named
statement
8.3.1.1. Configuring a caching-only nameserver
C.2. named.boot Configuration Commands
caching-only servers
3.3.4. BIND, resolver, and named
8.1.1. BIND Configurations
8.3.1.1. Configuring a caching-only nameserver
cannot connect error :
3.4.1. Simple Mail Transfer Protocol
Canonical Name (CNAME) resource records
8.3.6. The named.hosts File
10.7.1. Modifying Local Information
C.3.1.5. Canonical Name record
carrier-detect (DCD) indicator, monitoring :
6.3.3. chat
central administrator : (see
network, administration)
cf/cf directory :
10.4.1. Locating a Sample sendmail.cf File
cf/feature directory :
E.3.2. FEATURE
cf/ostype directory :
10.4.1.1. Building a sendmail.cf with m4 macros
cgm image subtype :
3.4.3. Multipurpose Internet Mail Extensions
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Index
Challenge Handshake Authentication Protocol : (see CHAP)
challenge string :
6.3.4. PPP Daemon Security
CHAP (Challenge Handshake Authentication Protocol)
6.3.4. PPP Daemon Security
A.2. The PPP Daemon
chap-secrets file :
6.3.4. PPP Daemon Security
Chapman, Brent :
12.1.1. Assessing the Threat
chat script :
6.3.3. chat
chat scripting language
A.2. The PPP Daemon
A.3. chat
escape sequences, listed :
A.3. chat
chatkey :
A.1.1. The dip Script File
checksums
1.6.2. Transmission Control Protocol
11.8. Protocol Case Study
recalculating
4.2.1. Obtaining an IP Address
5.3.1.1. Options
CIDR (Classless Inter-Domain Routing) :
2.2.2. Classless IP Addresses
address mask
2.2. The IP Address

2.2.2. Classless IP Addresses
blocks :
B.11. The Aggregate Statements
cipher :
12.6. Encryption
Cisco routers :
12.5. Access Control
class w, defining :
10.7.1. Modifying Local Information
classes of addresses : (see
addresses, classes of)
Classless Inter-Domain Routing : (see
CIDR)
clear text :
12.6. Encryption
client statement :
B.8.10. The routerdiscovery Statement
CNAME : (see
Canonical Name (CNAME) resource records)
Collis field :
11.4.3. Checking the Interface with netstat
collision rate
6.1.1. Determining the Interface Name
11.4.3. Checking the Interface with netstat
reducing :
11.4.4. Subdividing an Ethernet
colon (:)
beginning and ending fields
9.2.1. The printcap File
9.2.2. Solaris Line Printer Service

separating parameters :
9.4. A BOOTP Server
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com domain : 3.3.1. The Domain Hierarchy
Commercial Information Exchange (CIX) :
1.1. TCP/IP and the Internet
communications, interpersonal : (see
email (electronic mail))
comp.security newsgroups :
12.1.2.2. Use mailing lists to distribute information
Computer Emergency Response Team (CERT) advisories :
12.1.2.2. Use mailing lists to distribute
information
Computer Security Resource Clearinghouse :
13.1. The World Wide Web
computer-to-computer services
servers providing :
9. Configuring Network Servers
conditionals in macro definitions :
10.5.2.1. Conditionals
conf directory :
5.3. The BSD Kernel Configuration File
conf/master directory :
8.3.4. The named.local File
confidence factor :
11.1.1. Troubleshooting Hints
configuration
parameters (in dhcpd) :

D.3.2. Configuration Parameters
problems :
11.4.1. Troubleshooting with the ifconfig Command
servers :
3.5. Configuration Servers
system, prerequisites for :
4. Getting Started
connection command-line option, in pppd :
6.3.3. chat
connectivity
1.7. Application Layer
(see also
firewalls)
troubleshooting :
11.3. Testing Basic Connectivity
content types :
3.4.3. Multipurpose Internet Mail Extensions
Content-Transfer-Encoding headers :
3.4.3. Multipurpose Internet Mail Extensions
Content-Type headers :
3.4.3. Multipurpose Internet Mail Extensions
contiguous blocks : (see
addresses, assigning)
control
information :
1.3. TCP/IP Protocol Architecture
statements (in gated) :
B.10. Control Statements
convergence of routing, delays in :
7.4.1.1. Running RIP with routed

COPS (Computer Oracle Password and Security) programs :
12.4.3.1. COPS
copy (cp) command, in NFS :
9.1. The Network File System
core gateways
2.4. Internet Routing Architecture
7.5.1. Exterior Gateway Protocol
count field :
11.3.1. The ping Command
count-to-infinity problem :
7.4.1.1. Running RIP with routed
crash
resetting locks after :
9.1.1. NFS Daemons
restarting after :
9.2.2. Solaris Line Printer Service
crises : (see
disaster recovery plans)
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Index
cron, files run by, in security checks : 12.4.2. Looking for Trouble
crtscts option :
6.3.1. The PPP Daemon
crypto-checksum :
7.4.3. Open Shortest Path First
CSLIP : (see
Van Jacobson header compression)
-Ctest.cf argument :
10.8. Testing sendmail.cf

cua devices :
6.4.4. Troubleshooting Serial Connections
curly braces ({})
configuration statements
7.7.1.1. A host configuration
B.2. The gated Configuration Language
D.3. The dhcpd.conf Configuration File
long variable names :
10.5. sendmail Configuration
macro names :
10.5.2. The Define Macro Command
cyrus and cyrusbb mailers :
E.3.5. MAILER
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Copyright © 1999 O'Reilly & Associates, Inc. All Rights Reserved.
[ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ]
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Index: D
daemons
3.2. The Host Table
5.4. The Internet Daemon
uid :
5.4. The Internet Daemon
DATA command, in SMTP :

3.4.1. Simple Mail Transfer Protocol
data communications model :
1.2. A Data Communications Model
data compression, not provided in SLIP :
6.2.1. The Serial Protocols
Data Link Layer
1.2. A Data Communications Model
5.3.1.2. Pseudo-device
6.1.1. Determining the Interface Name
in PPP :
6.2.1. The Serial Protocols
Data Terminal Ready (DTR) modem control line :
A.2. The PPP Daemon
data terminology :
1.3. TCP/IP Protocol Architecture
databases in sendmail
arguments passed :
10.6.2.1. Transforming with a database
defining (K command) :
10.6.2.1. Transforming with a database
datagrams
1.3. TCP/IP Protocol Architecture
1.5.1.1. The datagram
1.7. Application Layer
(see also
IP datagrams)
(see also
User Datagram Protocol)
connectionless delivery of :
1.6. Transport Layer

converting source address of :
4.2.1. Obtaining an IP Address
forwarding :
5.3.1.1. Options
fragmented
1.5.1.3. Fragmenting datagrams
5.2. Linux Kernel Configuration
headers
2.7.1. Protocol Numbers
2.7.2. Port Numbers
marking end of :
6.2.1. The Serial Protocols
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routing : 1.5.1.2. Routing datagrams
silently discarding :
11.8. Protocol Case Study
DCD (Data Carrier Detect) modem control line :
A.2. The PPP Daemon
DDN Protocol Handbook :
1.3. TCP/IP Protocol Architecture
DDN security bulletins :
12.1.2.2. Use mailing lists to distribute information
debugging
8.2.1. The Resolver Configuration File
C.1.1. Signal Processing
decentralizing management :
2.3. Subnets
decryption :

12.6. Encryption
dedicated connections
6.3.1. The PPP Daemon
6.4. Installing SLIP
default
domain
3.3.3. Domain Names
8.2.1. The Resolver Configuration File
how used :
3.3.3. Domain Names
gateway
2.5. The Routing Table
4.3. Planning Routing
address :
4. Getting Started
mask :
2.2.2. Classless IP Addresses
passwords :
12.2. User Authentication
route
2.2.2.1. Final notes on IP addresses
2.5. The Routing Table
7.3. Building a Static Routing Table
defining :
7.4.1.1. Running RIP with routed
values :
3.6.1. Dynamic Host Configuration Protocol
defaultdomain file :
9.3. Network Information Service
defaultroute option :

6.3.1. The PPP Daemon
Defense Communications Agency (DCA) :
1.1. TCP/IP and the Internet
define macro (in sendmail)
E.3. m4 sendmail Macros
E.3.1. define
definition statements (in gated) :
B.7. Definition Statements
delays, inserting
6.3.2. Dial-Up PPP
6.4.4. Troubleshooting Serial Connections
demultiplexing :
2.7. Protocols, Ports, and Sockets
denial of service, threat of :
12.1.1. Assessing the Threat
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dequote database : 10.7.1. Modifying Local Information
DES-encrypted authentication : (see
authentication)
designated router :
7.4.3. Open Shortest Path First
destination
1.7. Application Layer
(see also
unreachable destinations, detecting)
fields :
2.5. The Routing Table
host :

2.5. The Routing Table
Destination Address
1.5.1.1. The datagram
2.2. The IP Address
Destination Port number
1.6.1. User Datagram Protocol
1.6.2. Transmission Control Protocol
Destination Unreachable Message :
1.5.2. Internet Control Message Protocol
/dev directory :
6.4.4. Troubleshooting Serial Connections
device statement :
5.3.1.3. Devices
dfstab file
9.1.2.1. The share command
9.1.5.1. NFS print services
dgram sockets :
5.4. The Internet Daemon
DHCP (Dynamic Host Configuration Protocol)
Preface
3.6.1. Dynamic Host Configuration Protocol
backwards-compatible :
9.5. DHCP
based on Bootstrap Protocol (BOOTP) :
9.4.2. BOOTP extensions
benefits of :
9.5. DHCP
daemon (dhcpd) :
9.5.1. dhcpd.conf
command :

D.2. The dhcpd Command
compiling :
D.1. Compiling dhcpd
configuring :
D.3. The dhcpd.conf Configuration File
tools reference :
D. A dhcpd Reference
using latest versions of :
D. A dhcpd Reference
interoperability and :
3.6.1. Dynamic Host Configuration Protocol
options available with :
D.3.3. DHCP Options
commonly used :
D.3.3.1. Commonly used options
others :
D.3.3.2. Other options
dhcpd.conf file :
9.5.1. dhcpd.conf
dhcpd.pid file :
D.2. The dhcpd Command
diagnostic tools :
11.2. Diagnostic Tools
dial-up connections :
6.3.1. The PPP Daemon
dial-up IP (dip)
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