Multipurpose Internet Mail Extensions protocols for : 2.7.2.. Multipurpose Internet Mail Extensions aspppd.cf file : 6.3.6.. Multipurpose Internet Mail Extensions contiguous blocks : see
Trang 1TCP/IP Network Administration
By Craig Hunt; ISBN 1-56592-322-7, 630 pages.
Second Edition, December 1997.
(See the catalog page for this book.)
Search the text of TCP/IP Network Administration.
Index
Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
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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Trang 2TCP/IP Network Administration
The Networking CD
Bookshelf Navigation
Copyright © 1999 O'Reilly & Associates All Rights Reserved.
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Trang 3Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
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 LanguageD.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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Trang 4comment 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
Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | ZCopyright © 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: 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 AddressesB.11 The Aggregate Statements
in DHCP : 3.6.1 Dynamic Host Configuration Protocol
broadcast
2.2.2.1 Final notes on IP addresses2.6 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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Trang 6setting : 6.1.4 Setting the Broadcast Address
specifying : 4.2.2 Defining the Subnet Mask
classes of
1.7 Application Layer2.2.1 Address Classes4.2.1 Obtaining an IP Address
class rules : 7.4.1.1 Running RIP with routed
converting : 10.6.3 The Set Ruleset Command
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 Classes2.2.2.1 Final notes on IP addresses
resolution of : 2.6 Address Resolution
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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Trang 7adventurous 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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Trang 8command
2.6 Address Resolution5.3.1.1 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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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
Trang 10Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | ZCopyright © 1999 O'Reilly & Associates, Inc All Rights Reserved
[ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ]
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7.7.1.2 Interior gateway configurations
backslash (\) escaping newline characters
9.2.1 The printcap File
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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Trang 12encoding 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
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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Trang 13Bootstrap 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 LanguageD.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
Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | ZCopyright © 1999 O'Reilly & Associates, Inc All Rights Reserved
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Trang 1411.3.1 The ping Command
11.4.3 Checking the Interface with netstat
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
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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Trang 15Challenge 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 Address2.2.2 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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Trang 16com 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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Trang 17cron, 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 LanguageD.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
Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | ZCopyright © 1999 O'Reilly & Associates, Inc All Rights Reserved
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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 datagrams5.2 Linux Kernel Configuration
headers
2.7.1 Protocol Numbers2.7.2 Port Numbers
marking end of : 6.2.1 The Serial Protocols
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Trang 19routing : 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
how used : 3.3.3 Domain Names
gateway
2.5 The Routing Table4.3 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 addresses2.5 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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Trang 20dequote 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)
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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6.4.2 Dial-Up IP
script file : A.1.1 The dip Script File
sample : A.1.1.1 A sample dip script
for SLIP : 6.4.2 Dial-Up IP
special variables, listed : A.1.1 The dip Script File
tools reference : A.1 Dial-Up IP
dial-up PPP : 6.3.2 Dial-Up PPP
dictionary guessing : 12.2 User Authentication
dig
11.2 Diagnostic Tools
11.3 Testing Basic Connectivity
11.6.4 dig: An Alternative to nslookup
query types : 11.6.4 dig: An Alternative to nslookup
digest multipart subtype : 3.4.3 Multipurpose Internet Mail Extensions
digital signature system : 12.6 Encryption
Dijkstra Shortest Path First (SPF) algorithm : 7.4.3 Open Shortest Path First
dip (dial-up IP)
6.3.2 Dial-Up PPP
6.4.2 Dial-Up IP
script file : A.1.1 The dip Script File
sample : A.1.1.1 A sample dip script
for SLIP : 6.4.2 Dial-Up IP
tools reference : A.1 Dial-Up IP
diphosts file : 6.4.3 SLIP Server Configuration
diplogin command : 6.4.3 SLIP Server Configuration
direct delivery : 3.4.1 Simple Mail Transfer Protocol
directive statements (in gated) : B.3 Directive Statements
directory
requirement for mounting : 9.1.3 Mounting Remote Filesystems
statement : 8.3.1.2 Primary and secondary server configurations
disaster recovery plans
11.10 Summary
12.1.1 Assessing the Threat
12.1.3 Writing a Security Policy
12.8 Words to the Wise
disclosure of information, threat of : 12.1.1 Assessing the Threat
dismounting directories, by booting : 9.1.3.1 The mount command
Distfile : 9.6.1 rdist
distributed
architecture : 7.5.1 Exterior Gateway Protocol
control : 12.1.2 Distributed Control
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Trang 22servers, managing : 9.6 Managing Distributed Servers
Distributed File System (DFS) : 3.7.1 File Sharing
distributing public keys : 12.6 Encryption
dividing problem into manageable pieces : 11.1.1 Troubleshooting Hints
DMBDEF variable : E.4.4 The sendmail K Command
dmesg command : 6.1.1 Determining the Interface Name
DNS (Domain Name Service)
1.7 Application Layer
3.1 Names and Addresses
3.3 Domain Name Service
(see also name service)
benefits of
3.3 Domain Name Service3.3.4 BIND, resolver, and named
querying : 10.7.1 Modifying Local Information
starting : 5.4 The Internet Daemon
docs/warnings file : 12.4.3.1 COPS
documentation
historical, of problems : 11.1.1 Troubleshooting Hints
using : 4.6 Informing the Users
contacting : 13.6 The White Pages
allocating : (see Network Information Center)
creating : 3.3.2 Creating Domains and Subdomains
downloading an entire : 8.4 Using nslookup
entry, in resolv.conf : 8.2.1 The Resolver Configuration File
application form : 4.4.1 Obtaining a Domain Name
fully qualified : 3.3.3 Domain Names
in NIS : 9.3 Network Information Service
obtaining : 4.4.1 Obtaining a Domain Name
parameter : 9.4 A BOOTP Server
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Trang 23name servers : 4.2.1.1 Assigning host addresses
parameter : 9.4 A BOOTP Server
organizational : 3.3.1 The Domain Hierarchy
DOMAIN macro (in sendmail) : E.3 m4 sendmail Macros
Domain Name Pointer records : (see PTR resource records)
Domain Name Service : (see DNS)
DOMAIN source file (in sendmail)
E.3.2 FEATURE
E.3.4 DOMAIN
mail relay defines, listed : E.3.4 DOMAIN
domain/named.root : 11.6.3 Cache corruption
domainname command : 9.3 Network Information Service
domaintable database : 10.7.1 Modifying Local Information
dots ( ) for domain name : C.3.1 Standard Resource Records
dotted decimal notation : 2.3 Subnets
ds.internic.net : 13.4 Retrieving RFCs
dummy interface : 5.2 Linux Kernel Configuration
dump : 7.7.2 Testing the Configuration
circumstances favoring : 4.3 Planning Routing
routing : 7.1 Common Routing Configurations
routing table : 4.3 Planning Routing
Dynamic DNS : 3.6.1 Dynamic Host Configuration Protocol
Dynamic Host Configuration Protocol : (see DHCP)
dynamic-bootp flag : D.3.2 Configuration Parameters
dynamic-bootp-lease-cutoff parameter : 9.5.1 dhcpd.conf
dynamic-bootp-lease-length parameter : 9.5.1 dhcpd.conf
dynamically allocated ports : 2.7.3 Sockets
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Index: E
Echo Message
1.5.2 Internet Control Message Protocol
7.2 The Minimal Routing Table
edit FYIs (For Your Information) : 13.7 Summary
edu domain : 3.3.1 The Domain Hierarchy
EGP (Exterior Gateway Protocol)
2.4 Internet Routing Architecture
7.5.1 Exterior Gateway Protocol
11.9 Simple Network Management Protocol
neighbors : 7.5.1 Exterior Gateway Protocol
statement (in gated) : B.8.6 The egp Statement
EHLO command, in ESMTP
3.4.3 Multipurpose Internet Mail Extensions
10.8 Testing sendmail.cf
email (electronic mail)
1.7 Application Layer
(see also mail, servers; addresses)
delivering : 1.7 Application Layer
for file transfers : 3.4.3 Multipurpose Internet Mail Extensions
growing importance of : 9.7.2 IMAP Server
for RFCs : 13.4.1 Retrieving RFCs by mail
emergencies : (see disaster recovery plans)
encapsulation : 1.3 TCP/IP Protocol Architecture
of datagrams : 1.4 Network Access Layer
of mail messages : 3.4.3 Multipurpose Internet Mail Extensions
Trang 2512.6 Encryption
multipart subtype : 3.4.3 Multipurpose Internet Mail Extensions
uses for : 12.6 Encryption
end systems : (see hosts)
enriched text subtype : 3.4.3 Multipurpose Internet Mail Extensions
enterprise
networks : 4.1 Connected and Non-Connected Networks
subnets : 5.2 Linux Kernel Configuration
enterpriseSpecific trap : 11.9 Simple Network Management Protocol
equal-cost multi-path routing : 7.4.3 Open Shortest Path First
equivalent hosts : 12.2.5 Secure the r Commands
error
correction, not provided in SLIP : 6.2.1 The Serial Protocols
detection
1.5.1 Internet Protocol11.8 Protocol Case Study
end-to-end : 1.6 Transport Layer
human : 11.1.1 Troubleshooting Hints
messages
passing to user : 10.6.2 Transforming the Address
in troubleshooting
11.1.1 Troubleshooting Hints 11.3 Testing Basic Connectivity
recovery : 1.5.1 Internet Protocol
ESMTP (Extended SMTP)
3.4.3 Multipurpose Internet Mail Extensions
10.8 Testing sendmail.cf
private extensions to : 3.4.3 Multipurpose Internet Mail Extensions
ESTABLISHED state : B.8.5 The bgp Statement
Trang 26/etc/auto_direct file : 9.1.4 NFS Automounter
/etc/auto_home file : 9.1.4 NFS Automounter
/etc/auto_master file : 9.1.4 NFS Automounter
/etc/bootptab file
9.4 A BOOTP Server 9.6.1 rdist
configuration parameters : 9.4.2 BOOTP extensions
updating : 9.4.2 BOOTP extensions
/etc/default/passwd file : 12.2.1 The Shadow Password File
/etc/defaultdomain file : 9.3 Network Information Service
/etc/dfs/dfstab file
9.1.2.1 The share command 9.1.5.1 NFS print services
/etc/dhcpd.conf file : 9.5.1 dhcpd.conf
/etc/diphosts file : 6.4.3 SLIP Server Configuration
/etc/ethers file
3.5.1 Reverse Address Resolution Protocol9.3 Network Information Service
11.4.2.1 ARP problem case study
/etc/exports file : 9.1.5.1 NFS print services
/etc/fstab file : 9.1.3.2 The vfstab and fstab files
/etc/gated.conf file : 7.6 Gateway Routing Daemon
creating : 7.7.2.1 Running gated at startup
/etc/gateways file : 7.3.1.1 Installing static routes at startup
reading at startup : 7.4.1.1 Running RIP with routed
9.3 Network Information Service
creating : 3.2 The Host Table
as maps : 3.3.5 Network Information Service
modifying : 3.3.4 BIND, resolver, and named
/etc/hosts.allow file : 12.5.1.1 tcpd access control files
/etc/hosts.deny file : 12.5.1.1 tcpd access control files
/etc/hosts.equiv file : 12.2.5 Secure the r Commands
in security checks : 12.4.2 Looking for Trouble
/etc/hosts.lpd file : 9.2.1.1 LPD security
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/etc/inetd.conf file : 9.4 A BOOTP Server
editing in tcpd : 12.5.1 wrapper
removing daemons from : 12.3.1 Remove Unnecessary Software
in security checks : 12.4.2 Looking for Trouble
/etc/init.d directory : 9.1.1 NFS Daemons
autofs script : 9.1.4 NFS Automounter
inetinit script : 7.3.1.1 Installing static routes at startup
sendmail script : 10.2 Running sendmail as a Daemon
/etc/lp directory : 9.2.2 Solaris Line Printer Service
/etc/lp/Systems file : 9.2.2 Solaris Line Printer Service
/etc/named.boot file
11.6.3 Cache corruption C.1 The named Command
/etc/named.ca file : 11.6.3 Cache corruption
/etc/named.pid file : 11.6.3 Cache corruption
/etc/networks file
3.2 The Host Table6.1.3 Assigning a Subnet Mask 7.3 Building a Static Routing Table 9.3 Network Information Service
as maps : 3.3.5 Network Information Service
/etc/passwd file
6.3.5 PPP Server Configuration 6.4.3 SLIP Server Configuration 9.1.5 NFS Authentication Server 9.3 Network Information Service 10.4.1.1 Building a sendmail.cf with m4 macros 13.2.1 Creating an FTP Server
protecting : 12.2 User Authentication
in security checks : 12.4.2 Looking for Trouble
/etc/pcnfsd.conf file : 9.1.5.1 NFS print services
/etc/ppp directory, protecting : A.2 The PPP Daemon
/etc/ppp/options file
6.3.1 The PPP Daemon 6.3.2 Dial-Up PPP A.2 The PPP Daemon
/etc/ppp/options.device file : A.2 The PPP Daemon
/etc/printcap file : 9.2.1 The printcap File
/etc/protocols file
2.7.1 Protocol Numbers5.4 The Internet Daemon
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/etc/rc.d/rc.inet1 script : 7.3.1.1 Installing static routes at startup
/etc/rc.d/rc.M startup script : 10.2 Running sendmail as a Daemon
/etc/resolv.conf file
8.1.1 BIND Configurations 8.2 Configuring the Resolver 11.6.4 dig: An Alternative to nslookup
/etc/services file
5.4 The Internet Daemon 9.3 Network Information Service 9.4 A BOOTP Server
9.7.1 POP Server 9.7.2 IMAP Server
/etc/shadow file : 12.2.1 The Shadow Password File
/etc/ssh_known_hosts file : 12.2.6 Secure Shell
/etc/system file : 5.1 Kernel Configuration
/etc/yp.conf file : 9.3 Network Information Service
Ethernet
1.5.1.3 Fragmenting datagrams
4.2.2 Defining the Subnet Mask
addresses : 1.4 Network Access Layer
identifying DHCP client by : 9.5.1 dhcpd.conf
keeping records of : 11.4.2 Troubleshooting with the arp Command
cards, configuring
5.2 Linux Kernel Configuration 6.1.1 Determining the Interface Name
fast ports (100 Mbps) : 11.4.4 Subdividing an Ethernet
FreeBSD device drivers, listed : 5.3.1.3 Devices
interfaces
5.3.1.3 Devices 6.1 The ifconfig Command 6.1.5.2 ARP and trailers 6.1.5.6 Putting ifconfig in the startup files
LAN : 5.2 Linux Kernel Configuration
networks : 1.4 Network Access Layer
subdividing : 11.4.4 Subdividing an Ethernet
support in BSD : 5.3.1.2 Pseudo-device
switch : 11.4.4 Subdividing an Ethernet
ethers file
3.5.1 Reverse Address Resolution Protocol
9.3 Network Information Service
11.4.2.1 ARP problem case study
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Trang 29expect scripting language : A.1.1.1 A sample dip script
expire fields : 12.2.1 The Shadow Password File
EXPN command
in ESMTP : 3.4.3 Multipurpose Internet Mail Extensions
in SMTP : 3.4.1 Simple Mail Transfer Protocol
export statement (in gated) : B.10.2 The export Statement
exports file : 9.1.5.1 NFS print services
in monitors : 11.9 Simple Network Management Protocol
of SMTP : 3.4.3 Multipurpose Internet Mail Extensions
Exterior Gateway Protocol : (see EGP)
exterior routing protocols : 7.5 Exterior Routing Protocols
External-body message subtype : 3.4.3 Multipurpose Internet Mail Extensions
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Index: F
fallbackhost : E.4.2 sendmail Options
fast ports : (see Ethernet)
fax-support, built-in : E.3.5 MAILER
FDDI network : 6.1.5.4 Maximum transmission unit
backbone : 11.8 Protocol Case Study
FEATURE macro : 10.4.1.1 Building a sendmail.cf with m4 macros
in sendmail
E.3 m4 sendmail MacrosE.3.2 FEATURE
features, listed : E.3.2 FEATURE
Federal Information Exchanges (FIXs) : 1.1 TCP/IP and the Internet
Fiber Digital Data Interface (FDDI)
1.7 Application Layer
5.3.1.2 Pseudo-device
(see also FDDI network)
file
checking : 12.4.2.1 Checking files
finding : 13.3 Finding Files
lock requests, handling : 9.1.1 NFS Daemons
servers, names of : 4.5.1 File servers
sharing
1.7 Application Layer3.7.1 File Sharing
different from file transfer : 3.7.1 File Sharing
transfer, interactive : 1.7 Application Layer
File Transfter Protocol : (see FTP)
filters
1.7 Application Layer
(see also packet, filters)
filters, provided by monitors : 11.9 Simple Network Management Protocol
FIN bit : 1.6.2 Transmission Control Protocol
find command, in security checks : 12.4.2.1 Checking files
finger
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Trang 31monitoring access to daemon : 12.5.1 wrapper
service : 5.4 The Internet Daemon
target for intruders : C.3.1.8 Well-Known Services record
finite state machine (FSM)
diagrams or tables : B.4 Trace Statements
transitions, tracing : B.8.10 The routerdiscovery Statement
fires : 12.1.1 Assessing the Threat
disadvantage of : 12.7.1 Functions of the firewall
functions of : 12.7.1 Functions of the firewall
limiting connectivity : 10.7.1 Modifying Local Information
need for professional installation : 12.7.1 Functions of the firewall
routing control within
12.7.2 Routing control E.4.2 sendmail Options
using BSD system as : 5.3.1.1 Options
using Linux system as : 5.2 Linux Kernel Configuration
FIRST mailing list : 12.1.2.2 Use mailing lists to distribute information
flags
2.5 The Routing Table
7.2 The Minimal Routing Table
defining interface characteristics : 6.1.2 Checking the Interface with ifconfig
Flags field : 1.5.1.3 Fragmenting datagrams
flooding
7.4.3 Open Shortest Path First
B.8.1 The ospf Statement
flow control
1.5.2 Internet Control Message Protocol
1.6.2 Transmission Control Protocol
foo.org database : 12.4.3.2 SATAN
Forum of Incident Response and Security Teams (FIRST) : 12.1.2.2 Use mailing lists to distribute information
.forward file : 10.3.1 Personal mail forwarding
forwarders command
8.3.1.1 Configuring a caching-only nameserver
C.2 named.boot Configuration Commands
forwarding : 1.5.1.4 Passing datagrams to the transport layer
fragmentation : 1.5.1.3 Fragmenting datagrams
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Trang 32avoiding : 6.1.5.4 Maximum transmission unit
Fragmentation Offset field : 1.5.1.3 Fragmenting datagrams
fragmented datagrams : (see datagrams)
frames : 1.3 TCP/IP Protocol Architecture
FreeBSD systems
5.3 The BSD Kernel Configuration File
5.3.1.1 Options
fstab file : 9.1.3.2 The vfstab and fstab files
FTP (File Transfer Protocol)
1.7 Application Layer
9.6 Managing Distributed Servers
anonymous : 13.2 Anonymous FTP
problem for firewalls : 12.7.1 Functions of the firewall
server, creating : 13.2.1 Creating an FTP Server
ftp.bunyip.com : 13.3.1.1 archie client software
ftp.isc.org : 8.3.4 The named.local File
ftp://rs.internic.net/netinfo/networks.txt : 3.2 The Host Table
full duplex : 6.3.5 PPP Server Configuration
full zone transfers : 3.3.4 BIND, resolver, and named
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Index: G
g3fax image subtype : 3.4.3 Multipurpose Internet Mail Extensions
gated (Gateway Routing Daemon) : 7.6 Gateway Routing Daemon
command : B.1 The gated Command
commands, listed : 7.7 Configuring gated
configuring : 7.7 Configuring gated
exterior gateway : 7.7.1.3 Exterior gateway configuration
host routing : 7.7.1.1 A host configuration
interior gateway : 7.7.1.2 Interior gateway configurations
language for : B.1.1 Signal Processing
documentation for : 13.1 The World Wide Web
ripquery and : 11.2 Diagnostic Tools
running at startup : 7.7.2.1 Running gated at startup
testing the configuration : 7.7.2 Testing the Configuration
tools reference : B A gated Reference
when to use : 7.7.1.3 Exterior gateway configuration
Gated Consortium : 7.7 Configuring gated
gated.conf configuration statements : 7.7.1.1 A host configuration
gated.conf file : 7.6 Gateway Routing Daemon
creating : 7.7.2.1 Running gated at startup
gated_dump file : B.1.1 Signal Processing
gateway
1.5.1.1 The datagram
2.5 The Routing Table
4.3 Planning Routing
active : 7.4.1.1 Running RIP with routed
addresses : 7.3 Building a Static Routing Table
in BSD kernel : 5.3.1.1 Options
intermediate : 11.5.2 Tracing Routes
intermediate systems (IS) : B.8.4 The isis Statement
local : 2.5 The Routing Table
Gateway Routing Daemon : (see gated)
Gateway to Gateway Protocol (GGP) : 2.4 Internet Routing Architecture
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Trang 34gateways file : 7.3.1.1 Installing static routes at startup
reading at startup : 7.4.1.1 Running RIP with routed
gathering information : (see information)
gdc command : 7.7.2 Testing the Configuration
GGP (Gateway to Gateway Protocol) : 2.4 Internet Routing Architecture
gif image subtype : 3.4.3 Multipurpose Internet Mail Extensions
gov domain : 3.3.1 The Domain Hierarchy
graph, directed : 7.4.3 Open Shortest Path First
graphic images
moving : 3.4.3 Multipurpose Internet Mail Extensions
still : 3.4.3 Multipurpose Internet Mail Extensions
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Trang 35three-way : 7.5.2 Border Gateway Protocol
hash mark (#) 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
Hayes modems : 6.3.2 Dial-Up PPP
compatibility problems : 6.4.4 Troubleshooting Serial Connections
messages : 7.5.1 Exterior Gateway Protocol
packets : 7.4.3 Open Shortest Path First
statement (in gated) : B.8.3 The hello Statement
HELO command, in POP : 3.4.2 Post Office Protocol
HELP command
in ESMTP : 3.4.3 Multipurpose Internet Mail Extensions
in nslookup : 8.4 Using nslookup
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Trang 36in SMTP : 3.4.1 Simple Mail Transfer Protocol
hierarchy, system : 3.3.1 The Domain Hierarchy
database system : 9.3.2 NIS+
of responsibility : 12.1.2.1 Use subnets to distribute control
High-level Data Link Control (HDLC) : 6.2.1 The Serial Protocols
high-speed dial-up modems : (see modems)
HINFO resource records
11.6.2 The data is here and the server can't find it!
C.3.1.7 Host Information record
hints file : 8.3.3 The Cache Initialization File
hoaxes about viruses : 12.1.2.2 Use mailing lists to distribute information
hop
1.7 Application Layer
(see also next-hop route)
count : 7.4.1.1 Running RIP with routed
next : 2.5 The Routing Table
Host Information records : (see HINFO resource records)
Host-to-Host Transport Layer : (see Transport Layer)
hosts
1.7 Application Layer
(see also remote, hosts, checking)
addresses : (see addresses)
file, caution regarding : 6.1.3 Assigning a Subnet Mask
list : 12.5.1.1 tcpd access control files
multi-homed : 1.5.1.2 Routing datagrams
names (hn) : 3.1 Names and Addresses
choosing : 4.4.2 Choosing a Hostname
easing transition from old to new : C.3.1.5 Canonical Name record
parameter : 9.4 A BOOTP Server
3.2 The Host Table
6.1 The ifconfig Command
7.3 Building a Static Routing Table
9.1.4 NFS Automounter
9.3 Network Information Service
creating : 3.2 The Host Table
as maps : 3.3.5 Network Information Service
modifying : 3.3.4 BIND, resolver, and named
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Trang 37hosts.allow file : 12.5.1.1 tcpd access control files
hosts.deny file : 12.5.1.1 tcpd access control files
hosts.equiv file
12.2.5 Secure the r Commands
12.4.2 Looking for Trouble
hosts.lpd file
9.2.1.1 LPD security
12.4.2 Looking for Trouble
htable
command : 3.2 The Host Table
networks.txt : 3.2 The Host Table
html text subtype : 3.4.3 Multipurpose Internet Mail Extensions
HTTP (Hypertext Transfer Protocol)
1.7 Application Layer
13.1 The World Wide Web
message subtype : 3.4.3 Multipurpose Internet Mail Extensions
human error : 11.1.1 Troubleshooting Hints
hunches, verifying : 10.8.1 Testing Rewrite Rules
Hypertext Transfer Protocol : (see HTTP)
hyphen (-) (non-equivalent host) : 12.2.5 Secure the r Commands
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Index: I
I-Heard-You (I-H-U) messages : 7.5.1 Exterior Gateway Protocol
ICMP (Internet Control Message Protocol) : 1.5.2 Internet Control Message Protocol
parameter problem message header : F.3 ICMP Parameter Problem Message Header
statement (in gated) : B.8.9 The icmp Statement
tracing messages in : B.8.9 The icmp Statement
IDA sendmail : 10 sendmail
Identification field : 1.5.1.3 Fragmenting datagrams
IDRP (InterDomain Routing Protocol) : 7.5.2 Border Gateway Protocol
IEEE 802.3 : 1.2 A Data Communications Model
Ierrs (input errors) : 11.4.3 Checking the Interface with netstat
IETF (Internet Engineering Task Force) : 2.2.2 Classless IP Addresses
RFC page : 13.4 Retrieving RFCs
ifconfig
3.5.1 Reverse Address Resolution Protocol
6.1 The ifconfig Command
6.4.1 slattach
7.2 The Minimal Routing Table
Linux implementation of : 7.3.1.1 Installing static routes at startup
putting in startup files : 6.1.5.6 Putting ifconfig in the startup files
setting values indirectly : 6.1.3 Assigning a Subnet Mask
in troubleshooting
11.2 Diagnostic Tools 11.3 Testing Basic Connectivity 11.4.1 Troubleshooting with the ifconfig Command
IHL (Internet Header Length) : 1.5.1.1 The datagram
image content type : 3.4.3 Multipurpose Internet Mail Extensions
IMAP (Internet Message Access Protocol)
4.5.3 Planning Your Mail System
9.7.2 IMAP Server
imapd file : 9.7.2 IMAP Server
import statement (in gated) : B.10.1 The import Statement
imposter on Ethernet : 11.4.2.1 ARP problem case study
in-addr.arpa
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Trang 39reverse domain files : C.3.1.6 Domain Name Pointer record
incompatibility problems, handling : 5.2 Linux Kernel Configuration
indefinite tokens : 10.6.1 Pattern Matching
substituting : 10.6.2 Transforming the Address
individual host assignment of addresses : 4.2.1.1 Assigning host addresses
inetd : 5.4 The Internet Daemon
starting bootpd from : 9.4 A BOOTP Server
starting bootpgw from : 9.4.1 BOOTP gateway
starting POP3 from : 9.7.1 POP Server
inetd.conf file
5.4 The Internet Daemon
9.4 A BOOTP Server
12.3.1 Remove Unnecessary Software
12.4.2 Looking for Trouble
editing in tcpd : 12.5.1 wrapper
inetinit script : 7.3.1.1 Installing static routes at startup
infinite loops, detecting possible : 10.6.2 Transforming the Address
information
ensuring integrity of : 12.1.1 Assessing the Threat
gathering, first phase in problem-solving : 11.1 Approaching a Problem
passing to users : 4.6 Informing the Users
disseminating mask information : 4.2.2 Defining the Subnet Mask
resources, finding : 13 Internet Information Resources
init.d directory : 9.1.1 NFS Daemons
Initial Sequence Number (ISN) : 1.6.2 Transmission Control Protocol
input errors (Ierrs) : 11.4.3 Checking the Interface with netstat
installation planning sheets : 4.6.1 Sample Planning Sheets
int domain : 3.3.1 The Domain Hierarchy
integrity of information : (see information)
interactive
logins : 4.5.3 Planning Your Mail System
mode : 8.4 Using nslookup
protocols : 9.6 Managing Distributed Servers
InterDomain Routing Protocol (IDRP) : 7.5.2 Border Gateway Protocol
interfaces
checking with ifconfig : 6.1.2 Checking the Interface with ifconfig
connectors : 1.2 A Data Communications Model
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Trang 40determining name of : 6.1.1 Determining the Interface Name
multiple : 6.1.1 Determining the Interface Name
not enabled (*) : 6.1.1 Determining the Interface Name
statements (in gated) : B.6 Interface Statements
intermediate gateway : (see gateway)
Intermediate System to Intermediate System (IS-IS) protocol : 7.4 Interior Routing Protocols
intermediate systems : (see gateway)
intermittent problems : 11.4.2 Troubleshooting with the arp Command
internal keyword : 5.4 The Internet Daemon
internal threats : 12.1.1 Assessing the Threat
International Standards Organization (ISO)
1.2 A Data Communications Model
11.9 Simple Network Management Protocol
Internet
connected or non-connected to : 4.1 Connected and Non-Connected Networks
daemon (inetd) : 5.4 The Internet Daemon
global
3.2 The Host Table4.1 Connected and Non-Connected Networks 12.6 Encryption
military origins of : 1.1 TCP/IP and the Internet
rapid growth of
Foreword from the First Edition1.1 TCP/IP and the Internet2.2.1 Address Classes7.5.1 Exterior Gateway Protocol
routing architecture : 2.4 Internet Routing Architecture
Internet Control Message Protocol : (see ICMP)
Internet Control Protocol (IPCP) : 6.2.1 The Serial Protocols
Internet Engineering Task Force (IETF) : 2.2.2 Classless IP Addresses
RFC page : 13.4 Retrieving RFCs
Internet Header Length (IHL) : 1.5.1.1 The datagram
Internet Layer : 1.5 Internet Layer
Internet Message Access Protocol (IMAP)
4.5.3 Planning Your Mail System
9.7.2 IMAP Server
Internet Protocol (IP) : 1.5.1 Internet Protocol
Internet Registries
4.2.1 Obtaining an IP Address
4.3.1 Obtaining an autonomous system number
Internet Resource Registries (IRR) : 4.2.1 Obtaining an IP Address
Internet Routing Registry (IRR) : 2.4 Internet Routing Architecture
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