Table of Contents for

TCP/IP Network Administration, 3rd Edition

I

I flag (Linux routing table), The Routing Table

IANA (Internet Assigned Numbers Authority), Protocols, Ports, and Sockets, Obtaining an official network address

address requests, Obtaining an official network address

protocol and port numbers, Protocols, Ports, and Sockets

ICANN (Internet Corporation for Assigned Names and Numbers), Creating Domains and Subdomains, Obtaining a Domain Name

domain name registrars, Creating Domains and Subdomains

domain names, registering, Obtaining a Domain Name

ICMP (Internet Control Message Protocol), Internet Control Message Protocol, Internet Control Message Protocol, Internet Control Message Protocol, Internet Control Message Protocol, Internet Control Message Protocol

Echo Message, Internet Control Message Protocol

Redirect Message, Internet Control Message Protocol

Source Quench Message, Internet Control Message Protocol, Internet Control Message Protocol

ICMP parameter problem header, ICMP Parameter Problem Message Header

ICMP Redirect, Adding Static Routes

icmp statement (gated), The icmp Statement

ICMP Unreachable Port message, Tracing Routes

Identification field, Fragmenting datagrams

idle option (pppd), The PPP Daemon

IDRP (InterDomain Routing Protocol), Border Gateway Protocol

Ierrs field (netstat command), The Interface Name

IETF (Internet Engineering Task Force), Protocol Standards, CIDR Blocks and Route Aggregation

IPv6, CIDR Blocks and Route Aggregation

protocol development, Protocol Standards

if command (dip), The dip Script File

Iface field (Linux routing table), The Routing Table

ifcfg file (Linux), Assigning an Address

ifcfg-eth0 file (Linux), Assigning a Subnet Mask

ifconfig command, Reverse Address Resolution Protocol, Using Dynamically Loadable Modules, The ifconfig Command, The ifconfig Command, The ifconfig Command, The Interface Name, Checking the Interface with ifconfig, Assigning an Address, Assigning a Subnet Mask–Assigning a Subnet Mask, Setting the Broadcast Address, Enabling and disabling the interface, ARP, Promiscuous mode, Metric, Maximum transmission unit, Putting ifconfig in the startup scripts, Solaris PPP, Diagnostic Tools, Troubleshooting with the ifconfig Command

arguments, The ifconfig Command

ARP, enabling and disabling, ARP

broadcast addresses, assigning, Setting the Broadcast Address

diagnostic troubleshooting, Diagnostic Tools

Ethernet promiscuous mode, enabling and disabling, Promiscuous mode

IP addresses, assigning, Assigning an Address

MTU, changing, Maximum transmission unit

network interfaces, The Interface Name, Checking the Interface with ifconfig, Enabling and disabling the interface

checking, Checking the Interface with ifconfig

determining available, The Interface Name

enabling and disabling, Enabling and disabling the interface

overview, The ifconfig Command

routing metric, changing, Metric

Solaris, The ifconfig Command, Solaris PPP

configuring PPP, Solaris PPP

Ethernet, The ifconfig Command

startup files, Putting ifconfig in the startup scripts

subnet masks, assigning, Assigning a Subnet Mask–Assigning a Subnet Mask

troubleshooting with, Troubleshooting with the ifconfig Command

iflist (gated), Trace Statements

ignore parameter (gated), The routerdiscovery Statement

IHL (Internet Header Length) field, The datagram

image (MIME data content type), Multipurpose Internet Mail Extensions

IMAP (Internet Message Access Protocol), Internet Message Access Protocol–Internet Message Access Protocol, Internet Message Access Protocol, IMAP Server

commands, Internet Message Access Protocol

servers, configuring, IMAP Server

implicit (sendmail K command value), The sendmail K Command

import keyword (dbmmanage command), Improved user authentication

import statement (gated), Control Statements, The import Statement

importdefault parameter (gated), The egp Statement

IN value (DNS resource records), Standard Resource Records

in-addr.arpa domains, Obtaining an IN-ADDR.ARPA domain

inactivity_timeout statement (Solaris PPP), Solaris PPP

inc command (dip), The dip Script File

include files, gated, Directive Statements

Includes (Options directive setting), Controlling Server Options

IncludesNOEXEC (Options directive setting), Controlling Server Options

indefinite tokens (sendmail pattern matching), Pattern Matching

indelay parameter (gated), The bgp Statement

index.html file (Apache), Configuring Apache on Solaris

index=file option (share command), The share command

Indexes (Options directive setting), Controlling Server Options

indexes, directory (Apache), Creating a Fancy Index

IndexIgnore directive (Apache), Creating a Fancy Index

IndexOptions directive (httpd.conf file), Creating a Fancy Index

indirect map configuration file (automounter), NFS Automounter

ineligible parameter (gated), The routerdiscovery Statement

inet6 option (resolv.conf file), The Resolver Configuration File

inet6 parameter (gated), The isis Statement

inetd, The Internet Daemon–The Internet Daemon

inetd.conf file, The Internet Daemon, NFS Daemons

fields, The Internet Daemon

NFS daemons, starting, NFS Daemons

info domain, The Domain Hierarchy

info parameter (gated), The icmp Statement, The kernel Statement

icmp statement, The icmp Statement

kernel statement, The kernel Statement

information disclosure (security risk), Assessing the Threat

informational RFCs, Protocol Standards

init command (dip), The dip Script File

init script option (pppd), The PPP Daemon

init.d/httpd script (Apache), Using the Red Hat Package Manager

Initial Sequence Number (ISN), Transmission Control Protocol

inittab file, runlevels and, Understanding /etc/inittab

INPUT_MAIL_FILTER macro (sendmail), m4 sendmail Macros

insmod command (Linux), Using Dynamically Loadable Modules

installation, Installing PPP, Installing Apache Software–Using the Red Hat Package Manager, Compiling sendmail

Apache, overview, Installing Apache Software–Using the Red Hat Package Manager

PPP, Installing PPP

sendmail, Compiling sendmail

int domain, The Domain Hierarchy

InterDomain Routing Protocol (IDRP), Border Gateway Protocol

interface argument (ifconfig command), The ifconfig Command

interface parameter, The ospf Statement, The rip Statement, The isis Statement, The kernel Statement, static Statements

gated isis statement, The isis Statement

gated kernel statement, The kernel Statement

gated ospf statement, The ospf Statement

gated rip statement, The rip Statement

gated static statements, static Statements

interface-interval option (named), The options Statement

interfaces, A Data Communications Model, The device statement, The ifconfig Command, The Interface Name–The Interface Name, Checking the Interface with ifconfig, Enabling and disabling the interface, TCP/IP Over a Serial Line, Troubleshooting with the ifconfig Command, Interface Statements

configuring, The ifconfig Command, Checking the Interface with ifconfig, Troubleshooting with the ifconfig Command

checking, Checking the Interface with ifconfig

ifconfig command, The ifconfig Command

troubleshooting, Troubleshooting with the ifconfig Command

connectors (OSI Physical Layer), A Data Communications Model

determining avaliable, The Interface Name–The Interface Name

enabling and disabling, ifconfig command, Enabling and disabling the interface

gated support, Interface Statements

hardware, identifying installed, The device statement

serial lines, overview, TCP/IP Over a Serial Line

interior routing protocols, Interior Routing Protocols, Routing Information Protocol, Running RIP with routed–Running RIP with routed, Open Shortest Path First, Interior gateway configurations–Interior gateway configurations

gated sample configuration, Interior gateway configurations–Interior gateway configurations

OSPF, Open Shortest Path First

overview, Interior Routing Protocols

RIP, Routing Information Protocol

routed command, Running RIP with routed–Running RIP with routed

Intermediate System to Intermediate System, Interior Routing Protocols (see IS-IS)

internal classes, sendmail, sendmail Classes

Internet, TCP/IP and the Internet, TCP/IP and the Internet, TCP/IP and the Internet, CIDR Blocks and Route Aggregation, Internet Routing Architecture–Internet Routing Architecture

architecture, routing, Internet Routing Architecture–Internet Routing Architecture

growth of, TCP/IP and the Internet, CIDR Blocks and Route Aggregation

effect on addressing schemes, CIDR Blocks and Route Aggregation

history of, TCP/IP and the Internet

tier-one providers, TCP/IP and the Internet

Internet Assigned Numbers Authority, Protocols, Ports, and Sockets (see IANA)

Internet Control Message Protocol, Internet Control Message Protocol (see ICMP)

Internet Control Protocol (IPCP), The Serial Protocols

Internet Corporation for Assigned Names and Numbers, Creating Domains and Subdomains (see ICANN)

Internet end user (organizational type), Obtaining an official network address

Internet Engineering Task Force, CIDR Blocks and Route Aggregation (see IETF)

Internet Header Length (IHL) field, The datagram

Internet Layer, Internet Layer, Internet Protocol, Routing datagrams, Fragmenting datagrams, Passing datagrams to the transport layer, Internet Control Message Protocol

ICMP, Internet Control Message Protocol

IP datagrams, Internet Protocol, Routing datagrams, Fragmenting datagrams, Passing datagrams to the transport layer

forwarding, Passing datagrams to the transport layer

fragmenting, Fragmenting datagrams

routing, Routing datagrams

Internet Protocol, Internet Layer (see IP)

Internet Routing Registry, Registering in a Routing Database (see IRR)

Internet Service Providers, TCP/IP and the Internet (see ISPs)

Internet standards (RFCs), Protocol Standards

intr option (vfstab file), The vfstab and fstab files

intranets, TCP/IP and the Internet, Connected and Non-Connected Networks

defined, TCP/IP and the Internet

intruder detection, Looking for Trouble

IP (Internet Protocol), Internet Layer, Internet Protocol, The datagram, Routing datagrams, Fragmenting datagrams, Passing datagrams to the transport layer, Names and Addresses

datagrams, The datagram

forwarding datagrams, Passing datagrams to the transport layer

fragmenting datagrams, Fragmenting datagrams

overview, Internet Protocol

RFC 791, Names and Addresses

routing datagrams, Routing datagrams

versions, Internet Layer

IP addresses, Addressing, Routing, and Multiplexing, The IP Address, The IP Address, The IP Address, The IP Address, The IP Address, Address Structure, Address Structure, Subnets–Subnets, Subnets, Subnets, The Natural Mask, The Natural Mask–The Natural Mask, The Natural Mask, The Natural Mask, The Natural Mask, CIDR Blocks and Route Aggregation, CIDR Blocks and Route Aggregation, CIDR Blocks and Route Aggregation, CIDR Blocks and Route Aggregation, IPv6, IPv6, Address Resolution, Names and Addresses, The Host Table, Obtaining an IP Address–Obtaining an IP Address, Obtaining an IP Address, Obtaining an IP Address, Obtaining an official network address–Obtaining an official network address, Obtaining an official network address, Obtaining an official network address, Obtaining an IN-ADDR.ARPA domain, The ifconfig Command, Assigning an Address, Assigning a Subnet Mask–Assigning a Subnet Mask, Setting the Broadcast Address, The PPP Daemon, The Reverse Zone File–The Reverse Zone File, The Forward-Mapping Zone File–The Forward-Mapping Zone File, Using nslookup, The share command, Troubleshooting with the arp Command–ARP problem case study, dig: An Alternative to nslookup

assigning, CIDR Blocks and Route Aggregation, The ifconfig Command, Assigning an Address

contiguous blocks of, CIDR Blocks and Route Aggregation

ifconfig command, The ifconfig Command, Assigning an Address

bit masks, The Natural Mask

broadcast, The IP Address, Setting the Broadcast Address

assigning, Setting the Broadcast Address

CIDR, CIDR Blocks and Route Aggregation

classes, The Natural Mask

data delivery, Addressing, Routing, and Multiplexing

datagrams, The IP Address

default masks, identifying, The Natural Mask

dotted decimal notation, The IP Address

expected utilization rate, Obtaining an official network address

hostnames, Names and Addresses, dig: An Alternative to nslookup

locating with dig, dig: An Alternative to nslookup

interpreting, The Natural Mask

IPv6, IPv6

loopback, localhost, The Host Table

multicast, The IP Address

natural mask, The Natural Mask–The Natural Mask

network growth, effect on addressing schemes, CIDR Blocks and Route Aggregation

nslookup and, Using nslookup

obtaining, Address Structure, Obtaining an IP Address–Obtaining an IP Address

official, assessing need for, Obtaining an official network address–Obtaining an official network address

pppd command and, The PPP Daemon

registries, obtaining addresses from, Obtaining an official network address

resolution, Address Resolution

reverse domains, Obtaining an IN-ADDR.ARPA domain

routing tables, reducing size of, CIDR Blocks and Route Aggregation

share command and, The share command

shortage of, IPv6

structure, Address Structure

subnet masks, Subnets, Subnets, Assigning a Subnet Mask–Assigning a Subnet Mask

assigning, Assigning a Subnet Mask–Assigning a Subnet Mask

creating, Subnets

RFCs, Subnets

subnets, Subnets–Subnets

translation, Obtaining an IP Address, The Reverse Zone File–The Reverse Zone File, The Forward-Mapping Zone File–The Forward-Mapping Zone File, Troubleshooting with the arp Command–ARP problem case study

forward-mapping zone files, The Forward-Mapping Zone File–The Forward-Mapping Zone File

overview, Obtaining an IP Address

reverse zone files, The Reverse Zone File–The Reverse Zone File

troubleshooting, Troubleshooting with the arp Command–ARP problem case study

unicast, The IP Address

uniqueness of, Obtaining an IP Address

IP datagram header, IP Datagram Header–IP Datagram Header

ip module, ip_forwarding variable, Using Dynamically Loadable Modules

IPADDR (Linux configuration value), Assigning an Address

IPCP (Internet Control Protocol), The Serial Protocols

ipcp-accept-local option (pppd), The PPP Daemon

ipcp-accept-remote option (pppd), The PPP Daemon

ipcp-max-configure option (pppd), The PPP Daemon

ipcp-max-failure option (pppd), The PPP Daemon

ipcp-max-terminate option (pppd), The PPP Daemon

ipcp-restart option (pppd), The PPP Daemon

Ipkts field (netstat command), The Interface Name

ipparam option (pppd), The PPP Daemon

iptables command, Defining iptables filter rules, Sample iptables commands

filtering routers, Defining iptables filter rules

samples, Sample iptables commands

IPv4 flag (ifconfig command), Checking the Interface with ifconfig

IPv6, CIDR Blocks and Route Aggregation, IPv6, IPv6, IPv6

demand for, IPv6

efficiency of, IPv6

ipv6 option (pppd), The PPP Daemon

ipv6cp-max-configure option (pppd), The PPP Daemon

ipv6cp-max-failure option (pppd), The PPP Daemon

ipv6cp-max-terminate option (pppd), The PPP Daemon

ipv6cp-restart option (pppd), The PPP Daemon

ipv6cp-use-ipaddr option (pppd), The PPP Daemon

ipv6cp-use-persistent option (pppd), The PPP Daemon

ip_forwarding variable (ip module), configuring, Using Dynamically Loadable Modules

IRR (Internet Routing Registry), Internet Routing Architecture, Registering in a Routing Database

IRs (Internet Registries), address requests, Obtaining an official network address

IS-IS (Intermediate System to Intermediate System), overview, Interior Routing Protocols

isis statement (gated), The isis Statement

ISN (Initial Sequence Number), Transmission Control Protocol

ISPs (Internet Service Providers), TCP/IP and the Internet, Address Structure, Obtaining an official network address

addresses, assigning, Address Structure

as organizational type, Obtaining an official network address

ISS (automated system monitoring), Automated Monitoring