Table of Contents for

TCP/IP Network Administration, 3rd Edition

H

H command (sendmail), Defining Mail Headers

H flag (Linux routing table), The Routing Table

HACK macro (sendmail), m4 sendmail Macros

hand tools, hardware maintenance, Diagnostic Tools

handshaking, Internet Protocol, Transmission Control Protocol, Sockets

port numbers and, Sockets

HANGUP command (chat), chat

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

hardware, A Data Communications Model, Subnets, Defining the Subnet Mask, Using Dynamically Loadable Modules, Using Dynamically Loadable Modules, The device statement, Diagnostic Tools

detecting, Solaris reconfigure file and, Using Dynamically Loadable Modules

distance limitations, subnetting and, Defining the Subnet Mask

Linux, device driver installation, Using Dynamically Loadable Modules

maintenance tools, Diagnostic Tools

network interfaces, identifying installed, The device statement

OSI Physical Layer, A Data Communications Model

subnetting and, Subnets

hardware parameter (dhcpd), Configuration Parameters

has-old-clients option (named), The options Statement

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

hash mark (#) for comments, The Host Table

HDLC (High-level Data Link Control), The Serial Protocols

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

HeaderName directive (Apache), Creating a Fancy Index

headers, TCP/IP Protocol Architecture, The datagram, Transmission Control Protocol, Protocol Numbers, Port Numbers, Multipurpose Internet Mail Extensions, Multipurpose Internet Mail Extensions, Defining Mail Precedence, Defining Mail Headers, The sendmail Command, IP Datagram Header–IP Datagram Header, TCP Segment Header, ICMP Parameter Problem Message Header

datagrams, The datagram, Protocol Numbers, Port Numbers

port numbers, Port Numbers

protocol numbers, Protocol Numbers

ICMP parameter problem, ICMP Parameter Problem Message Header

IP datagrams, IP Datagram Header–IP Datagram Header

MIME, Multipurpose Internet Mail Extensions, Multipurpose Internet Mail Extensions

Content-Transfer-Encoding, Multipurpose Internet Mail Extensions

protocol stack, TCP/IP Protocol Architecture

sendmail, Defining Mail Precedence, Defining Mail Headers, The sendmail Command

H command, Defining Mail Headers

precedence, Defining Mail Precedence

TCP segment, Transmission Control Protocol, TCP Segment Header

heartbeat-interval option (named), The options Statement

hello (EGP trace option), The egp Statement

hello command, Multipurpose Internet Mail Extensions

Hello packets (OSPF), Open Shortest Path First

Hello protocol, overview, Interior Routing Protocols

help, Linux Kernel Configuration, Dial-Up PPP, The dip Script File

dip, Dial-Up PPP, The dip Script File

Linux kernel configuration, Linux Kernel Configuration

HELP command, Simple Mail Transfer Protocol, Multipurpose Internet Mail Extensions

ESMTP, Multipurpose Internet Mail Extensions

SMTP, Simple Mail Transfer Protocol

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

heterogeneous networks, Protocol Standards

hide-password option (pppd), The PPP Daemon

High-level Data Link Control (HDLC), The Serial Protocols

high-volume end-user (organizational type), Obtaining an official network address

HINFO (Host Information) records, Host Information record

hints (cache initialization file), The Cache Initialization File–The Cache Initialization File

historic protocols, Protocol Standards

holdoff option (pppd), The PPP Daemon

holdtime parameter (gated), The bgp Statement

home section (smb.conf file), The smb.conf homes section

hop count, routing, Routing Information Protocol

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

host addresses, The IP Address

(see also IP addresses)

host addresses, assigning, Assigning Host Addresses

Host Information (HINFO) records, Host Information record

HOST option (xinetd), Controlling Access with xinetd

host statement (dhcpd), Topology Statements

host statements (dhcpd.config file), dhcpd.conf

host tables, The Host Table–The Host Table, The Host Table

limitations of, The Host Table

host-statistics option (named), The options Statement

hostname file (Solaris), Assigning an Address

hostname option (share command), The share command

HostnameLookups directive (Apache), Performance Tuning Directives

hostnames, Names and Addresses, The Host Table–The Host Table, The Host Table, Choosing a Hostname, The Forward-Mapping Zone File, The share command, Modifying Local Information

aliases, The Host Table

canonical names, The Forward-Mapping Zone File

locating host tables, The Host Table–The Host Table

selecting, Choosing a Hostname

sendmail, class w, Modifying Local Information

share command and, The share command

hosts, Routing datagrams, The Routing Table, Network Services, A host configuration, The /etc/exports file, dhcpd.conf, Defining Virtual Hosts, Secure the r Commands, Firewalls

bastion, Firewalls

gated configuration, A host configuration

grouping, dhcpd.conf file, dhcpd.conf

multi-homed, Routing datagrams

peers, Network Services

routing tables, The Routing Table

trusted, Secure the r Commands

values, exports file, The /etc/exports file

virtual (Apache), Defining Virtual Hosts

HOSTS = (Distfiles), rdist

hosts file, The Host Table, The Host Table, Network Information Service, The ifconfig Command, Assigning a Subnet Mask, Network Information Service

ifconfig command and, The ifconfig Command

mask values, storing, Assigning a Subnet Mask

NIS maps, Network Information Service, Network Information Service

hosts.allow file (security), tcpd access control files–tcpd access control files

hosts.deny (security), tcpd access control files–tcpd access control files

hosts.equiv file, security considerations, Secure the r Commands, Looking for Trouble

hosts.lpd file, security considerations, Looking for Trouble

htdocs directory (Solaris), Configuring Apache on Solaris

HTTP (Hypertext Transfer Protocol), Application Layer

http (MIME data subtype), Multipurpose Internet Mail Extensions

httpd processes, managing, Managing the Swarm

httpd.conf (Apache configuration file), Configuring the Apache Server, Configuring the Apache Server, 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, Defining Where Things Are Stored, Defining File Types, Controlling Server Options–Controlling Server Options, Defining Access Controls, Requiring user authentication–Improved user authentication, Setting file-level access controls, Setting document-level access controls

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

document level controls, Setting document-level access controls

file level controls, Setting file-level access controls

overview, Defining Access Controls

user authentication, Requiring user authentication–Improved user authentication

configuration directives, Basic Configuration Directives

directives, Loading Dynamic Shared Objects, Defining File Types

configuration, Loading Dynamic Shared Objects

MIME file types, Defining File Types

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

location of, Configuring the Apache Server

overview, Understanding an httpd.conf File

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

Solaris configuration, Configuring Apache on Solaris–Configuring Apache on Solaris

web server document locations, Defining Where Things Are Stored

httpd.conf file, Solaris httpd.conf File–Solaris httpd.conf File

http_core.c (DSO module), Loading Dynamic Shared Objects

Hypertext Transfer Protocol (HTTP), Application Layer