Table of Contents for

TCP/IP Network Administration, 3rd Edition

A

A flag (Linux routing table), The Routing Table

A records, The Cache Initialization File, Using nslookup

named.ca file, The Cache Initialization File

nslookup command, Using nslookup

ABORT keyword (chat), chat

ACCEPT keyword (iptables command), Defining iptables filter rules

access control, Defining Access Controls, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls, Access Control, wrapper, tcpd access control files–tcpd access control files, Defining an optional shell command, Optional access control language extensions, Controlling Access with xinetd–Controlling Access with xinetd, Firewalls

Apache, Defining Access Controls, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls

document level, Setting document-level access controls

file level, Setting file-level access controls

overview, Defining Access Controls

user authentication, Requiring user authentication–Improved user authentication

language extensions, Optional access control language extensions

packet filtering, Firewalls

security, Access Control, tcpd access control files–tcpd access control files, Defining an optional shell command

overview, Access Control

shell command, Defining an optional shell command

tcpd, tcpd access control files–tcpd access control files

wrapper package, wrapper

xinetd, Controlling Access with xinetd–Controlling Access with xinetd

access.conf (Apache configuration file), Configuring the Apache Server

AccessFileName directive (Apache), Directory-Level Configuration Controls

access_times parameter (xinetd), Controlling Access with xinetd

acdirmax= option (vfstab file), The vfstab and fstab files

acdirmin= option (vfstab file), The vfstab and fstab files

Acknowledgment Number field (TCP headers), Transmission Control Protocol

Acknowledgment Segment (TCP headers), Transmission Control Protocol

acl statement (named.conf file), The acl Statement

aclok option (share command), The share command

acquire (EGP trace option), The egp Statement

acquiring a neighbor (EGP), Exterior Gateway Protocol

acregmax= option (vfstab file), The vfstab and fstab files

acregmin= option (vfstab file), The vfstab and fstab files

actimeo= option (vfstab file), The vfstab and fstab files

action field (inittab file), Understanding /etc/inittab

active keyword (routed command), Running RIP with routed

active-filter option (pppd), The PPP Daemon

add keyword (dbmmanage command), Improved user authentication

add keyword (route command), Building a Static Routing Table

AddEncoding directive (httpd.conf file), Defining File Types

AddIcon directive (Apache), Creating a Fancy Index

AddIconByEncoding directive (Apache), Creating a Fancy Index

AddIconByType directive (Apache), Creating a Fancy Index

Additional (DNS response packets), dig: An Alternative to nslookup

additional-from-auth parameter (named BIND 9 options statement), The BIND 9 options statement

additional-from-cache (named BIND 9 options statement), The BIND 9 options statement

AddLanguage directive (httpd.conf file), Defining File Types

AddModule directive (httpd.conf file), Loading Dynamic Shared Objects, Loading Dynamic Shared Objects

Solaris modules, Loading Dynamic Shared Objects

address argument (ifconfig command), The ifconfig Command

address blocks, Address Structure

address conversion database (sendmail), Building a sendmail.cf with m4 macros

address field (chap-secrets file), PPP Daemon Security

Address field (netstat command), The Interface Name

address option (share command), The share command

address records, Address record

address resolution, Address Resolution

Address Resolution Protocol, Address Resolution (see ARP)

Address value (dhcpd option statement), DHCP Options

address-list option (named), The options Statement

addresses, TCP/IP Features, Network Access Layer, Addressing, Routing, and Multiplexing, The IP Address, 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, 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, The Host Table, Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol, How DHCP works, Getting Started, Obtaining an IP Address–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, Assigning Host Addresses, Defining the Subnet Mask, Defining the Subnet Mask, The ifconfig Command, The Cache Initialization File–The Cache Initialization File, The named.local File, The Reverse Zone File–The Reverse Zone File, The Forward-Mapping Zone File–The Forward-Mapping Zone File, The share command, dhcpd.conf, Building a sendmail.cf with m4 macros, Transforming the Address–Transforming the Address, Transforming with a database, Using Key Files in sendmail, Troubleshooting with the arp Command–ARP problem case study, Definition Statements, The sendmail Command, The sendmail Command, The sendmail Command

(see also IP addresses)

assigning, CIDR Blocks and Route Aggregation, The ifconfig Command

contiguous blocks, CIDR Blocks and Route Aggregation

ifconfig command, The ifconfig Command

bit masks, Address Structure, The Natural Mask

broadcast, The IP Address, The IP Address

cache initialization file, The Cache Initialization File–The Cache Initialization File

CIDR, CIDR Blocks and Route Aggregation

classes of, The Natural Mask

conversion database (sendmail), Building a sendmail.cf with m4 macros

datagrams, The IP Address

default gateway, need for, Getting Started

default masks, identifying, The Natural Mask

DHCP, assigning, Dynamic Host Configuration Protocol

dynamic allocation, dhcpd.conf file, dhcpd.conf

expected utilization rate, Obtaining an official network address

host, The Natural Mask, Assigning Host Addresses

assigning, Assigning Host Addresses

interpreting, The Natural Mask

IPv6, IPv6

limited broadcast, How DHCP works

loopback, The Host Table, The named.local File

converting to localhost, The named.local File

localhost, The Host Table

martians (gated), Definition Statements

multicast, The IP Address

natural mask, The Natural Mask–The Natural Mask

Network Access Layer, Network Access Layer

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

obtaining, Obtaining an IP Address–Obtaining an IP Address

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

overriding (sendmail), The sendmail Command

registries, obtaining from, Obtaining an official network address

reserved, The IP Address

resolution of, Address Resolution

reverse domains, Obtaining an IN-ADDR.ARPA domain

rewrite rules, testing (sendmail), The sendmail Command

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

sendmail, Transforming the Address–Transforming the Address, Transforming with a database, Using Key Files in sendmail

transformation databases, Using Key Files in sendmail

transforming, Transforming the Address–Transforming the Address, Transforming with a database

share command and, The share command

shortage of, IPv6

spoofing, Obtaining an IP Address

subnet mask, defining, Defining the Subnet Mask, Defining the Subnet Mask

subnet masks, Subnets, Subnets

creating, Subnets

RFCs, Subnets

subnets, Subnets–Subnets

timing out, Dynamic Host Configuration Protocol

translating, 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

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

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

translation, overview, Obtaining an IP Address

unicast, The IP Address

uniqueness of, Obtaining an IP Address

verifying (sendmail), The sendmail Command

address_match_list option (named), The options Statement

AddType directive (httpd.conf file), Defining File Types

adduser keyword (dbmmanage command), Improved user authentication

admin-c field (RIPE database), Obtaining an IN-ADDR.ARPA domain

adv (gated), Trace Statements

Advanced Research Projects Agency (ARPA), TCP/IP and the Internet

advanced router option (Linux kernel configuration), Linux Kernel Configuration

advertise parameter (gated), The routerdiscovery Statement

aero domain, The Domain Hierarchy

aggregate statement (gated), Aggregate Statements

Alias directive (httpd.conf file), Defining Where Things Are Stored

aliases, Port Numbers, The Host Table, sendmail Aliases

hostnames, The Host Table

network services, Port Numbers

sendmail, overview, sendmail Aliases

aliases database (sendmail), The sendmail Command

aliases file, Simple Mail Transfer Protocol, Simple Mail Transfer Protocol, Network Information Service, sendmail Aliases

email addresses, Simple Mail Transfer Protocol

NIS map, Network Information Service

sendmail, location of, sendmail Aliases

aliases-nexthop (gated), Interface Statements

AliasFile option (sendmail), Setting Options

All (Options directive setting), Controlling Server Options

ALL keyword (security), tcpd access control files

Allow from directive (Directory containers), Defining Access Controls

allow keyword parameter (dhcpd), Configuration Parameters

allow-ip option (pppd), The PPP Daemon

allow-notify (named), The BIND 9 options statement

allow-query option (named), The options Statement

allow-recursion option (named), The options Statement

allow-transfer option (named), The options Statement

AllowOverride directive (Apache), Directory-Level Configuration Controls

AllowOverride directives (Directory containers), Controlling Server Options

also-notify option (named), The options Statement

alternative (MIME data subtype), Multipurpose Internet Mail Extensions

always-reply-rfc1048 flag parameter (dhcpd), Configuration Parameters

amd command, NFS Automounter

American Registry for Internet Numbers (ARIN), Obtaining an official network address

anon=uid option (share command), The share command

Answer (DNS response packets), dig: An Alternative to nslookup

Apache, Installing Apache Software–Using the Red Hat Package Manager, Using the Red Hat Package Manager, Using the Red Hat Package Manager, Using the Red Hat Package Manager, Downloading Apache, Configuring the Apache Server, Configuring Apache on Solaris–Configuring Apache on Solaris, Configuring Apache on Solaris, Understanding an httpd.conf File, Loading Dynamic Shared Objects–Loading Dynamic Shared Objects, Loading Dynamic Shared Objects, Basic Configuration Directives, Basic Configuration Directives, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Defining Where Things Are Stored, Creating a Fancy Index, Creating a Fancy Index, Defining File Types, Performance Tuning Directives, Performance Tuning Directives–Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Defining the log file format–Defining the log file format, Using conditional logging, Proxy Servers and Caching, Multi-Homed Server Options, Defining Virtual Hosts, Web Server Security, The CGI and SSI Threat, The CGI and SSI Threat, Controlling Server Options–Controlling Server Options, Directory-Level Configuration Controls, Directory-Level Configuration Controls, Directory-Level Configuration Controls, Defining Access Controls, Requiring user authentication–Improved user authentication, Requiring user authentication, Requiring user authentication, Requiring user authentication, Setting file-level access controls, Setting document-level access controls, Using Encryption, Using Encryption, Monitoring Your Server

access controls, Defining Access Controls, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls

document level, Setting document-level access controls

file level, Setting file-level access controls

overview, Defining Access Controls

user authentication, Requiring user authentication–Improved user authentication

AllowOverride directive, Directory-Level Configuration Controls

conditional logging, Using conditional logging

configuring, Configuring the Apache Server, Configuring Apache on Solaris–Configuring Apache on Solaris

overview, Configuring the Apache Server

Solaris, Configuring Apache on Solaris–Configuring Apache on Solaris

directives, Basic Configuration Directives, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Managing the Swarm, Defining Where Things Are Stored, Creating a Fancy Index, Performance Tuning Directives, Performance Tuning Directives–Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Performance Tuning Directives, Defining the log file format–Defining the log file format, Directory-Level Configuration Controls, Requiring user authentication, Requiring user authentication, Requiring user authentication

AccessFileName, Directory-Level Configuration Controls

AuthName, Requiring user authentication

AuthType, Requiring user authentication

BrowserMatch, Performance Tuning Directives

configuration, Basic Configuration Directives

directory indexing, Creating a Fancy Index

DocumentRoot, Defining Where Things Are Stored

Group, Managing the Swarm

HostnameLookups, Performance Tuning Directives

httpd process control, Managing the Swarm

KeepAlive, Performance Tuning Directives

KeepAliveTimeout, Performance Tuning Directives

LogFileFormat, Defining the log file format–Defining the log file format

MaxKeepAliveRequests, Performance Tuning Directives

MaxRequestsPerChild, Managing the Swarm

MaxSpareServer, Managing the Swarm

MinSpareServer, Managing the Swarm

performance tuning, Performance Tuning Directives–Performance Tuning Directives

Require, Requiring user authentication

StartServer, Managing the Swarm

Timeout, Performance Tuning Directives

User, Managing the Swarm

directory indexes, Creating a Fancy Index

directory-level configuration control, Directory-Level Configuration Controls

DocumentRoot directive, Configuring Apache on Solaris

DSO modules, Loading Dynamic Shared Objects

encryption, Using Encryption

httpd processes, managing, Managing the Swarm

httpd.conf file, Understanding an httpd.conf File, Loading Dynamic Shared Objects–Loading Dynamic Shared Objects, Basic Configuration Directives

configuration directives, Basic Configuration Directives

dynamically loadable modules, Loading Dynamic Shared Objects–Loading Dynamic Shared Objects

overview, Understanding an httpd.conf File

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

launching, Using the Red Hat Package Manager, Using the Red Hat Package Manager

daemons at bootup, Using the Red Hat Package Manager

without rebooting, Using the Red Hat Package Manager

MIME file types, defining, Defining File Types

monitoring, Monitoring Your Server

multi-homed servers, options, Multi-Homed Server Options

obtaining, Downloading Apache

OpenSSL, Using Encryption

packages, locating names of, Using the Red Hat Package Manager

proxy servers, caching options, Proxy Servers and Caching

security, Web Server Security, The CGI and SSI Threat, The CGI and SSI Threat

CGI scripts, The CGI and SSI Threat

overview, Web Server Security

SSI, The CGI and SSI Threat

server options, controlling, Controlling Server Options–Controlling Server Options

virtual hosts, defining, Defining Virtual Hosts

Applicability Statements (AS), Protocol Standards

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

Application Layer, A Data Communications Model, Application Layer

applications, Transmission Control Protocol, Port Numbers, Remove Unnecessary Software, Keep Software Updated

port numbers, Transmission Control Protocol

protocols for, Port Numbers

security, Remove Unnecessary Software, Keep Software Updated

removing unnecessary, Remove Unnecessary Software

updating, Keep Software Updated

architecture, TCP/IP Protocol Architecture–TCP/IP Protocol Architecture, Internet Routing Architecture–Internet Routing Architecture

Internet routing, Internet Routing Architecture–Internet Routing Architecture

TCP/IP models, TCP/IP Protocol Architecture–TCP/IP Protocol Architecture

area auth simple parameter (gated), The isis Statement

area parameter, The ospf Statement, The isis Statement

gated isis statement, The isis Statement

gated ospf statement, The ospf Statement

areas (OSPF hierarchy), Open Shortest Path First

arguments, The ifconfig Command, Running sendmail as a Daemon, The gated Command, The sendmail Command–The sendmail Command, The sendmail K Command

gated command, The gated Command

ifconfig command, The ifconfig Command

sendmail command, Running sendmail as a Daemon, The sendmail Command–The sendmail Command

sendmail K command, The sendmail K Command

arguments field (inet.conf file), The Internet Daemon

Argv field (sendmail), Defining Mailers

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

ARP (Address Resolution Protocol), Address Resolution, ARP

enabling and disabling, ARP

arp command, Address Resolution, Troubleshooting with the arp Command–ARP problem case study

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

arp module, options, Using Dynamically Loadable Modules

arp, diagnostic troubleshooting, Diagnostic Tools

ARPA (Advanced Research Projects Agency), TCP/IP and the Internet

ARPAnet, TCP/IP and the Internet

AS (Applicability Statements), Protocol Standards

AS (gated), Interface Statements

as parameter (gated), Aggregate Statements

AS path (routing policies), Control Statements

ASCII, MIME encoding, Multipurpose Internet Mail Extensions

Asian Pacific Network Information Center (APNIC), Obtaining an official network address

ASNs (autonomous system numbers), Obtaining an autonomous system number, Obtaining an autonomous system number, Registering in a Routing Database

obtaining, Obtaining an autonomous system number, Obtaining an autonomous system number

routing databases, registering, Registering in a Routing Database

aspath parameter (gated), Aggregate Statements

aspppd command (Solaris), Solaris PPP

asymmetric encryption, Encryption

Asynchronous PPP Daemon (aspppd), Solaris PPP

asyncmap option (pppd), The PPP Daemon

at command, security considerations, Looking for Trouble

ATTEMPT option (xinetd), Controlling Access with xinetd

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

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

auth option (pppd), PPP Daemon Security, PPP Server Configuration, The PPP Daemon

configuring PPP servers, PPP Server Configuration

auth-nxdomain option (named), The options Statement

authentication, The PPP Daemon, PPP Daemon Security, Open Shortest Path First, The share command, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls, User Authentication, The Shadow Password File–The Shadow Password File, Secure Shell

Apache, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls

document-level access controls, Setting document-level access controls

file-level access controls, Setting file-level access controls

dedicated connections and, The PPP Daemon

OSPF, Open Shortest Path First

protocols, pppd command, PPP Daemon Security

shadow password files, The Shadow Password File–The Shadow Password File

share command, The share command

ssh, Secure Shell

AuthName directive (Apache), Requiring user authentication

authoritative parameter (dhcpd), Configuration Parameters

authoritative servers, DNS, BIND, Resolvers, and named

DNS, DNS

Authority (DNS response packets), dig: An Alternative to nslookup

AuthType directive (Apache), Requiring user authentication

autofs script, NFS Automounter

automatically allocating addresses (DHCP), Dynamic Host Configuration Protocol

automounter (NFS), NFS Automounter, NFS Automounter, NFS Automounter

configuration files, NFS Automounter

daemon, NFS Automounter

autonomous system external (ASE) routes, Exterior gateway configuration

autonomous system numbers, Obtaining an autonomous system number (see ASNs)

autonomous systems (AS), Internet Routing Architecture

autonomoussystem (gated), Definition Statements

auto_home map, NFS Automounter

auto_master file, configuration, NFS Automounter