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Index: B

-bd switch

sendmail, 3.4. Role as a Daemon
sendmail, 4.1.1. Daemon Mode (-bd)
sendmail, 15.5. Prevent the Daemon from Running
sendmail, 36.7. Alphabetized Reference

-bD switch : sendmail, 36.7. Alphabetized Reference

-bh switch : sendmail, 36.7. Alphabetized Reference

-bH switch : sendmail, 36.7. Alphabetized Reference

-bi switch

sendmail, 4.1.3. Rebuild Aliases Mode (-bi)
sendmail, 24.5.1. Rebuild the Alias Database
sendmail, 36.7. Alphabetized Reference

-bm switch : sendmail, 36.7. Alphabetized Reference

-bp switch

sendmail, 4.1.2. Show Queue Mode (-bp)
sendmail, 36.7. Alphabetized Reference

-bs switch

sendmail, 14.6. Trusted User
sendmail, 36.7. Alphabetized Reference

-bt switch

sendmail, 5.2. The Minimal File
sendmail, 8.3. Rule Sets
sendmail, 36.7. Alphabetized Reference
sendmail, 38. Rule-Set Testing with -bt

-bv switch

sendmail, 4.1.4. Verify Mode (-bv)
sendmail, 36.7. Alphabetized Reference

-bz switch : sendmail, 36.7. Alphabetized Reference

-B switch (sendmail) : sendmail, 36.7. Alphabetized Reference

back doors

Practical UNIX & Internet Security, 2.5. The Problem with Security Through Obscurity
Practical UNIX & Internet Security, 6.2.3. Cryptographic Strength
Practical UNIX & Internet Security, 11.1. Programmed Threats: Definitions
Practical UNIX & Internet Security, 11.1.2. Back Doors and Trap Doors
Practical UNIX & Internet Security, 11.5. Protecting Yourself
Practical UNIX & Internet Security, 27.1.2. Trusting Trust
in MUDs and IRCs : Practical UNIX & Internet Security, 17.3.23. Other TCP Ports: MUDs and Internet Relay Chat (IRC)

back-off algorithms : TCP/IP Network Administration, 9.4. A BOOTP Server

backbones

TCP/IP Network Administration, 7.4.3. Open Shortest Path First
TCP/IP Network Administration, 7.7.1.2. Interior gateway configurations

background checks, employee : Practical UNIX & Internet Security, 13.1. Background Checks

background delivery mode : sendmail, 13.2.3. The Default Delivery Mode

backquotes in CGI input

Practical UNIX & Internet Security, 18.2.3.2. Testing is not enough!
Practical UNIX & Internet Security, 18.2.3.3. Sending mail

backslash (\)

escaping newline characters

TCP/IP Network Administration, 9.2.1. The printcap File
TCP/IP Network Administration, A.3. chat
TCP/IP Network Administration, C.3.1. Standard Resource Records

in UUCP addresses

sendmail, 17.1.4. UUCP Addresses
sendmail, 19.6. Alphabetized m4 Macros

mail command and : Practical UNIX & Internet Security, 15.1.3. mail Command

in header fields : sendmail, 35.3.2. Escape Character in the Header Field

in rules : sendmail, 28.1.2.1. Backslashes in rules

BACKSPACE key : Practical UNIX & Internet Security, 3.4. Changing Your Password

backup program : Practical UNIX & Internet Security, 7.4.3. Specialized Backup Programs

backups

Building Internet Firewalls, 3.1. Least Privilege

Building Internet Firewalls, 5.10. Protecting the Machine and Backups

Building Internet Firewalls, 13.5.1. Backing Up Your Filesystems

Practical UNIX & Internet Security, 7. Backups

Practical UNIX & Internet Security, 7.4.7. inode Modification Times

Practical UNIX & Internet Security, 9.1.2. Read-only Filesystems

Practical UNIX & Internet Security, 24.2.2. What to Do When You Catch Somebody

across networks : Practical UNIX & Internet Security, 7.4.5. Backups Across the Net

archiving information : Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures

automatic

Practical UNIX & Internet Security, 7.3.2. Building an Automatic Backup System
Practical UNIX & Internet Security, 18.2.3.5. Beware stray CGI scripts

battery power : DNS & BIND, 8.5.2. Recommendations

checklist for : Practical UNIX & Internet Security, A.1.1.6. Chapter 7: Backups

criminal investigations and : Practical UNIX & Internet Security, 26.2.4. Hazards of Criminal Prosecution

critical files

Practical UNIX & Internet Security, 7.3. Backing Up System Files
Practical UNIX & Internet Security, 7.3.2. Building an Automatic Backup System

encrypting

Practical UNIX & Internet Security, 7.4.4. Encrypting Your Backups
Practical UNIX & Internet Security, 12.3.2.4. Backup encryption

of firewalls : Building Internet Firewalls, 12.1.1. Backing Up Your Firewall

hardcopy : Practical UNIX & Internet Security, 24.5.1. Never Trust Anything Except Hardcopy

keeping secure

Practical UNIX & Internet Security, 2.4.2. Standards
Practical UNIX & Internet Security, 2.4.3. Guidelines
Practical UNIX & Internet Security, 7.1.6. Security for Backups
Practical UNIX & Internet Security, 7.1.6.3. Data security for backups
Practical UNIX & Internet Security, 26.2.6. Other Tips

laws concerning : Practical UNIX & Internet Security, 7.1.7. Legal Issues

of log files : Practical UNIX & Internet Security, 10.2.2. Accounting with BSD

logs and : Building Internet Firewalls, 5.10.2. Do Secure Backups

name servers

DNS & BIND, 6.1.4. The nameserver Directive
DNS & BIND, 6.2.2. Local Name Server

retention of

Practical UNIX & Internet Security, 7.1.5. How Long Should You Keep a Backup?
Practical UNIX & Internet Security, 7.2. Sample Backup Strategies
Practical UNIX & Internet Security, 7.2.5. Deciding upon a Backup Strategy

rotating media : Practical UNIX & Internet Security, 7.1.3. Types of Backups

serial number and

DNS & BIND, 7.2.3. Starting Over with a New Serial Number
DNS & BIND, 7.6.1. Common Syslog Messages

software for

Practical UNIX & Internet Security, 7.4. Software for Backups
Practical UNIX & Internet Security, 7.4.7. inode Modification Times
commercial : Practical UNIX & Internet Security, 7.4.6. Commercial Offerings

special programs for : Practical UNIX & Internet Security, 7.4.3. Specialized Backup Programs

strategies for

Practical UNIX & Internet Security, 7.2. Sample Backup Strategies
Practical UNIX & Internet Security, 7.2.5. Deciding upon a Backup Strategy
Practical UNIX & Internet Security, 10.8. Managing Log Files

theft of

Practical UNIX & Internet Security, 12.3.2. Protecting Backups
Practical UNIX & Internet Security, 12.3.2.4. Backup encryption

using to restore system : Building Internet Firewalls, 13.1.6. Restore and Recover

verifying : Practical UNIX & Internet Security, 12.3.2.1. Verify your backups

zero-filled bytes in : Practical UNIX & Internet Security, 7.4. Software for Backups

zone data : DNS & BIND, 4.8.2. Backup Files

zone transfers and : DNS & BIND, 7.6.1. Common Syslog Messages

backward compatibility : sendmail, D.2. Backward Compatibility

bacteria

Practical UNIX & Internet Security, 11.1. Programmed Threats: Definitions
Practical UNIX & Internet Security, 11.1.7. Bacteria and Rabbits

"Bad file number" error : sendmail, 6.2.1. Testing the client.cf File

"bad ruleset definition" error : sendmail, 29.1.3. Associate Number with Name

BADSU attempts : (see sulog file)

Baldwin, Robert : Practical UNIX & Internet Security, 6.6.1.1. The crypt program

bandwidth

increasing : TCP/IP Network Administration, 5.2. Linux Kernel Configuration

using efficiently

TCP/IP Network Administration, 7.4.1.1. Running RIP with routed
TCP/IP Network Administration, 8.3.1.1. Configuring a caching-only nameserver

bang (!) and mail command : Practical UNIX & Internet Security, 15.1.3. mail Command

base64 encoding type

sendmail, 18.8. Alphabetized Reference
TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

Bash shell (bsh) : Practical UNIX & Internet Security, 8.1.4.4. No restricted bash

basic audio subtype : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

Basic Encoding Rules (BER) : TCP/IP Network Administration, 11.9. Simple Network Management Protocol

Basic Networking Utilities : (see BNU UUCP)

basic terminology : (see terminology, importance of using standard)

bastion hosts

DNS & BIND, 15.4.6.1. The bastion host

Building Internet Firewalls, 4.1. Some Firewall Definitions

Building Internet Firewalls, 4.2.3.2. Bastion host

Building Internet Firewalls, 5. Bastion Hosts

Practical UNIX & Internet Security, 21.1.3. Anatomy of a Firewall

TCP/IP Network Administration, 12.7. Firewalls

backups of : Building Internet Firewalls, 5.10. Protecting the Machine and Backups

building : Building Internet Firewalls, 5.8. Building a Bastion Host

fake DNS server on : Building Internet Firewalls, 8.10.5.1. Set up a `fake'

graphics on : Building Internet Firewalls, 5.3.3. What Hardware Configuration?

internal : Building Internet Firewalls, 5.2.3. Internal Bastion Hosts

on internal firewalls : Building Internet Firewalls, 4.4.6. An Internal Firewall May or May Not

isolating : Building Internet Firewalls, 4.2.3. Screened Subnet Architecture

merging with exterior router : Building Internet Firewalls, 4.3.3. It's OK to Merge

merging with interior router : Building Internet Firewalls, 4.3.4. It's Dangerous to Merge the Bastion

multiple : Building Internet Firewalls, 4.3.1. It's OK to Use

network location of : Building Internet Firewalls, 5.5. Locating the Bastion Host on the Network

as news server : Building Internet Firewalls, 8.5.3. Dangerous Ways to Set up

nonrouting dual-homed : Building Internet Firewalls, 5.2.1. Nonrouting Dual-homed Hosts

operating : Building Internet Firewalls, 5.9. Operating the Bastion Host

physical location of : Building Internet Firewalls, 5.4. Choosing a Physical Location

selecting services for : Building Internet Firewalls, 5.6. Selecting Services Provided by the

Sendmail on

Building Internet Firewalls, 8.1.1.2. Why does Sendmail have security
Building Internet Firewalls, 8.1.1.6. Configuring SMTP to

speed of : Building Internet Firewalls, 5.3.2. How Fast a Machine?

usage profile : Building Internet Firewalls, 5.9.1. Learn What the Normal Usage Profile Is

user accounts on : Building Internet Firewalls, 5.7. Don't Allow User Accounts on the

batch jobs

Practical UNIX & Internet Security, 25.2.1.2. System overload attacks
sendmail, 38.8. Batch Rule-Set Testing
(see also cron file)

baud : Practical UNIX & Internet Security, 14.1. Modems: Theory of Operation

"Bcc:" header line : sendmail, 35.10. Alphabetized Reference

bell (in Swatch program) : Practical UNIX & Internet Security, 10.6.2. The Swatch Configuration File

Bellcore : Practical UNIX & Internet Security, F.3.4.5. Bellcore

Berkeley db : (see db library package)

Berkeley Internet Name Domain : (see BIND)

Berkeley Software Distribution : (see BSD)

Berkeley UNIX : (see BSD UNIX)

Berkeley vendor specification : sendmail, 27.5.1. The vendor

Berkeley's sendmail : (see sendmail)

bestmx database class : sendmail, 33.8. Alphabetized Reference

bestmx_is_local feature : sendmail, 19.6. Alphabetized m4 Macros

BGP (Border Gateway Protocol)

TCP/IP Network Administration, Preface

TCP/IP Network Administration, 2.4. Internet Routing Architecture

TCP/IP Network Administration, 4.3.1. Obtaining an autonomous system number

TCP/IP Network Administration, 7.5. Exterior Routing Protocols

TCP/IP Network Administration, 7.5.2. Border Gateway Protocol

enabling (in gated)

TCP/IP Network Administration, 7.7.1.3. Exterior gateway configuration
TCP/IP Network Administration, B.10. Control Statements

inside autonomous systems : TCP/IP Network Administration, 7.7.1.3. Exterior gateway configuration

statement (in gated) : TCP/IP Network Administration, B.8.5. The bgp Statement

bi-lateral agreements : TCP/IP Network Administration, 2.4. Internet Routing Architecture

bidirectionality

Building Internet Firewalls, 6.2.1. Protocols Are Usually
Practical UNIX & Internet Security, 14.1. Modems: Theory of Operation
Practical UNIX & Internet Security, 14.4.1. One-Way Phone Lines

bigcrypt algorithm : Practical UNIX & Internet Security, 8.6.4. Crypt16() and Other Algorithms

/bin directory

Practical UNIX & Internet Security, 11.1.5. Viruses
Practical UNIX & Internet Security, 11.5.1.1. PATH attacks
backing up : Practical UNIX & Internet Security, 7.1.2. What Should You Back Up?
/bin/csh : (see csh)
/bin/ksh : (see ksh)
/bin/login : (see login program)
/bin/mail : (see mail program)
/bin/passwd : (see passwd command)
/bin/sh : (see sh)
in restricted filesystems : Practical UNIX & Internet Security, 8.1.5. Restricted Filesystem

binary code : Practical UNIX & Internet Security, 11.1.5. Viruses

binary encoding type : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

BIND (Berkeley Internet Name Domain)

Building Internet Firewalls, 8.10. Domain Name System

Practical UNIX & Internet Security, 16.2.6.1. DNS under UNIX

Practical UNIX & Internet Security, 17.1.3. The /etc/inetd Program

TCP/IP Network Administration, Preface

TCP/IP Network Administration, UNIX Versions

TCP/IP Network Administration, 3.3.4. BIND, resolver, and named

TCP/IP Network Administration, 8.1. BIND: UNIX Name Service

TCP/IP Network Administration, 11.2. Diagnostic Tools

compiling and installing : DNS & BIND, B. Compiling and Installing BIND on a Sun

configuration file : (see boot file)

configuration types : TCP/IP Network Administration, 8.1.1. BIND Configurations

debugging : TCP/IP Network Administration, 8.4. Using nslookup

directives and resolvers (list) : DNS & BIND, F.1. BIND Name Server Boot File Statements

firewalls and : DNS & BIND, 15.4. DNS and Internet Firewalls

history of : DNS & BIND, 1.4. The History of BIND

name server maintainence : DNS & BIND, 7. Maintaining BIND

logging (BIND 8) : DNS & BIND, 7.5. BIND 8 Logging
monitoring name servers : DNS & BIND, 7.6. Keeping Everything Running Smoothly
organizing db files : DNS & BIND, 7.3. Organizing Your Files
updating db files : DNS & BIND, 7.2. Updating db Files

name server signals : DNS & BIND, 7.1. BIND Name Server Signals

obtaining source code

DNS & BIND, 3.1. Getting BIND
DNS & BIND, B.1. Get the Source Code

resource on : sendmail, Other Books, Other Problems

resources for : DNS & BIND, 3.1.1. Handy Mailing Lists and Usenet Newsgroups

running as non-root user : DNS & BIND, 10.11.4. Running BIND as a Non-Root User

statistics : DNS & BIND, 7.6.2. Understanding the BIND Statistics

versions of

DNS & BIND, Versions
DNS & BIND, 3.1. Getting BIND
DNS & BIND, 10.11.1. BIND Version
DNS & BIND, 15.4.2. A Bad Example
interoperability problems : DNS & BIND, 13.5. Interoperability and Version Problems
transitions between : DNS & BIND, 13.4. Transition Problems

bind-users mailing list

DNS & BIND, 3.1.1. Handy Mailing Lists and Usenet Newsgroups
DNS & BIND, 4.2.9. The Root Cache Data

bind-workers mailing list : DNS & BIND, 3.1.1. Handy Mailing Lists and Usenet Newsgroups

BINDIR= directive : sendmail, 18.4.7. BINDIR=

biological threats : Practical UNIX & Internet Security, 12.2.1.7. Bugs (biological)

bit masks : TCP/IP Network Administration, 2.2.2. Classless IP Addresses

bit sets : TCP/IP Network Administration, 1.6.2. Transmission Control Protocol

bitdomain feature : sendmail, 19.6. Alphabetized m4 Macros

BITNET addresses : sendmail, 19.6. Alphabetized m4 Macros

BITNET-RELAY macro (m4)

sendmail, 19.6. Alphabetized m4 Macros
sendmail, 31.10. Alphabetized Reference

BITNET_SITECONFIG macro (m4) : sendmail, 19.6. Alphabetized m4 Macros

blackhole

interface : TCP/IP Network Administration, B.6. Interface Statements
route : TCP/IP Network Administration, B.9. static Statements

BlankSub (B) option

sendmail, 13.2.8. The Unquoted Space Replacement Character
sendmail, 28.2.3. Pasting Addresses Back Together
sendmail, 34.8. Alphabetized Reference

blind carbon copy : sendmail, 35.10. Alphabetized Reference

block devices : Practical UNIX & Internet Security, 5.6. Device Files

block send commands : Practical UNIX & Internet Security, 11.1.4. Trojan Horses

blocking systems : Practical UNIX & Internet Security, 19.2. Sun's Remote Procedure Call (RPC)

BNU UUCP

Practical UNIX & Internet Security, 15.5. Security in BNU UUCP
Practical UNIX & Internet Security, 15.5.3. uucheck: Checking Your Permissions File

BODY parameter (ESMTP)

sendmail, 31.10. Alphabetized Reference
sendmail, 36.7. Alphabetized Reference

body, message : sendmail, 1.6. The Body

B line (qf file) : sendmail, 23.9. The qf File Internals

in queue

sendmail, 3.1.2. The Queue Directory
sendmail, 23.2.2. The Data (Message Body) File: df

${bodytype} macro : sendmail, 31.10. Alphabetized Reference

Boeing CERT : Practical UNIX & Internet Security, F.3.4.5. Bellcore

bogus name servers, avoiding : DNS & BIND, 10.10. Avoiding a Bogus Name Server

bogus qf files : sendmail, 23.3. A Bogus qf File (V8 only): Qf

bogusns directive

DNS & BIND, 10.10. Avoiding a Bogus Name Server
DNS & BIND, F.1.13. bogusns (4.9.3)
Practical UNIX & Internet Security, 17.3.6.2. DNS nameserver attacks
TCP/IP Network Administration, 11.6.3. Cache corruption
TCP/IP Network Administration, C.2. named.boot Configuration Commands

bookptab file

TCP/IP Network Administration, 9.4. A BOOTP Server
TCP/IP Network Administration, 9.6.1. rdist
configuration parameters : TCP/IP Network Administration, 9.4.2. BOOTP extensions
updating : TCP/IP Network Administration, 9.4.2. BOOTP extensions

Boolean options, nslookup : DNS & BIND, 11.3. Option Settings

Boolean values

arguments, Boolean-type : sendmail, 34.5. Option Argument Types
in dhcpd parameters : TCP/IP Network Administration, 9.5.1. dhcpd.conf
in printcap parameters : TCP/IP Network Administration, 9.2.1. The printcap File

boot

Building Internet Firewalls, 5.8.2.4. Which services should you disable?
TCP/IP Network Administration, 9.4. A BOOTP Server
scripts, starting daemons from : TCP/IP Network Administration, 9.1.1. NFS Daemons
viruses : Practical UNIX & Internet Security, 11.1.5. Viruses

boot file (BIND configuration file)

DNS & BIND, 4.2. Setting Up DNS Data

DNS & BIND, 4.3. Setting Up a BIND Configuration File

DNS & BIND, 7.3. Organizing Your Files

DNS & BIND, 7.3.2. Changing the Origin in a Database File

directives

DNS & BIND, F.1. BIND Name Server Boot File Statements
DNS & BIND, F.1.14. check-names (4.9.4)
DNS & BIND, F.1.19. options (8.X.X)
DNS & BIND, F.1.21. zone (8.X.X)

syntax errors in : DNS & BIND, 13.3.5. 5. Syntax Error in the Conf File or DNS Database File

BOOTP (Bootstrap Protocol)

TCP/IP Network Administration, Preface

TCP/IP Network Administration, 3.6. Bootstrap Protocol

TCP/IP Network Administration, A.1.1. The dip Script File

bootp-2.4.3.tar file : TCP/IP Network Administration, 9.4.2. BOOTP extensions

bootp-DDS2.4.3.tar file : TCP/IP Network Administration, 9.4. A BOOTP Server

bootpd (BOOTP daemon) : TCP/IP Network Administration, 9.4. A BOOTP Server

bootpd file : TCP/IP Network Administration, 9.6.1. rdist

bootpgw (BOOTP gateway) : TCP/IP Network Administration, 9.4.1. BOOTP gateway

bootptab file

TCP/IP Network Administration, 9.4. A BOOTP Server
TCP/IP Network Administration, 9.4.2. BOOTP extensions
TCP/IP Network Administration, 9.6.1. rdist

clients : TCP/IP Network Administration, D.3.2. Configuration Parameters

expanded by DHCP : TCP/IP Network Administration, 3.6.1. Dynamic Host Configuration Protocol

Bootparams table (NIS+) : Practical UNIX & Internet Security, 19.5.3. NIS+ Tables

BOOTREPLY packet : TCP/IP Network Administration, 3.6. Bootstrap Protocol

BOOTREQUEST packet

TCP/IP Network Administration, 3.6. Bootstrap Protocol
TCP/IP Network Administration, 9.4. A BOOTP Server
TCP/IP Network Administration, 9.4.1. BOOTP gateway
TCP/IP Network Administration, 9.5.1. dhcpd.conf

Bootstrap Protocol : (see BOOTP)

Border Gateway Protocol : (see BGP)

border routers : TCP/IP Network Administration, 7.7.1.3. Exterior gateway configuration

bouncing messages

sendmail, 10.3. Missing Addresses

sendmail, 35.10. Alphabetized Reference

sendmail, 36.7. Alphabetized Reference

down sites and : sendmail, 23.7.1. Handling a Down Site

error messages and : sendmail, 34.8. Alphabetized Reference

mailing lists and

sendmail, 25.5.1. Reply Versus Bounce
sendmail, 25.5.3. A list-bounced Alias

to postmaster

sendmail, 22.8.3.4. The PostmasterCopy option
sendmail, 24.4.1. The Postmaster Alias

priority and : sendmail, 14.4. Precedence

recipient of : (see $n macro)

from retired accounts : sendmail, 19.6. Alphabetized m4 Macros

return interval : sendmail, 13.2.2. Limit the Life of Queued Messages

saved in qf file : sendmail, 23.3.6. Savemail Panic

Bourne shell

Practical UNIX & Internet Security, 5.5.3.2. Another SUID example: IFS and the /usr/lib/preserve

Practical UNIX & Internet Security, 11.5.1. Shell Features

Practical UNIX & Internet Security, C.5.3. Running the User's Shell

SUID and

Practical UNIX & Internet Security, 5.5.2. Problems with SUID
(see also shells)

bps (bits per second) : Practical UNIX & Internet Security, 14.1. Modems: Theory of Operation

braces ({})

sendmail, 5.3.2. Macros

sendmail, 5.3.5. Class Macros

sendmail, 7.1. Overview

configuration statements

TCP/IP Network Administration, 7.7.1.1. A host configuration
TCP/IP Network Administration, B.2. The gated Configuration Language
TCP/IP Network Administration, D.3. The dhcpd.conf Configuration File

long variable names : TCP/IP Network Administration, 10.5. sendmail Configuration

macro names : TCP/IP Network Administration, 10.5.2. The Define Macro Command

BREAK key : Practical UNIX & Internet Security, 14.5.3.2. Answer testing

breakdowns : (see disasters and disaster recovery)

breakins

checklist for : Practical UNIX & Internet Security, A.1.1.23. Chapter 24: Discovering a Break-in

legal options following : Practical UNIX & Internet Security, 26.1. Legal Options After a Break-in

responding to

Practical UNIX & Internet Security, 24. Discovering a Break-in
Practical UNIX & Internet Security, 24.7. Damage Control

resuming operation after : Practical UNIX & Internet Security, 24.6. Resuming Operation

broadcast addresses

Building Internet Firewalls, C.9. The IP Address
TCP/IP Network Administration, 2.2.2.1. Final notes on IP addresses
TCP/IP Network Administration, 2.6. Address Resolution
TCP/IP Network Administration, 4. Getting Started
TCP/IP Network Administration, 6.1. The ifconfig Command
TCP/IP Network Administration, 6.1.2. Checking the Interface with ifconfig
(see also addresses)

broadcast messages : sendmail, 14.4. Precedence

broadcast storm : Practical UNIX & Internet Security, 25.3.2. Message Flooding

broadcasting : Building Internet Firewalls, 8.9.3. The Multicast Backbone (MBONE)

BROKEN_RES_SEARCH macro : sendmail, 18.8. Alphabetized Reference

browsers, web

Building Internet Firewalls, 2.5. The World Wide Web

Practical UNIX & Internet Security, 18.5. Risks of Web Browsers

Practical UNIX & Internet Security, 18.5.2. Trusting Your Software Vendor

TCP/IP Network Administration, 13.1. The World Wide Web

as FTP clients : Building Internet Firewalls, 8.2.1.1. Packet filtering characteristics of

as Gopher clients : (see Gopher)

MIME in : Building Internet Firewalls, 8.1.3. Multipurpose Internet Mail Extensions

Netscape Navigator

Building Internet Firewalls, 2.5. The World Wide Web
TCP/IP Network Administration, 13.1. The World Wide Web
encryption system of : Practical UNIX & Internet Security, 18.4.1. Eavesdropping Over the Wire
random number generator : Practical UNIX & Internet Security, 23.8. Picking a Random Seed

BSD (Berkeley Software Distribution) : Building Internet Firewalls, 2.14. Printing Systems

kernel configuration file : TCP/IP Network Administration, 5.3. The BSD Kernel Configuration File

r commands

Building Internet Firewalls, 5.8.2.4. Which services should you disable?
Building Internet Firewalls, 6.1.2.2. Some protocols are not well suited to packet
configuring : Building Internet Firewalls, 8.4.1. BSD

remounting filesystems on BSD systems : TCP/IP Network Administration, 9.1.3.2. The vfstab and fstab files

BSD UNIX : Practical UNIX & Internet Security, 1.3. History of UNIX

accounting with : Practical UNIX & Internet Security, 10.2.2. Accounting with BSD
Fast Filesystem (FFS) : Practical UNIX & Internet Security, 25.2.2.6. Reserved space
groups and : Practical UNIX & Internet Security, 4.1.3.3. Groups and BSD or SVR4 UNIX
immutable files : Practical UNIX & Internet Security, 9.1.1. Immutable and Append-Only Files
modems and : Practical UNIX & Internet Security, 14.5.1. Hooking Up a Modem to Your Computer
programming references : Practical UNIX & Internet Security, D.1.11. UNIX Programming and System Administration
ps command with : Practical UNIX & Internet Security, C.1.2.2. Listing processes with Berkeley-derived versions of
published resources for : Practical UNIX & Internet Security, D.1. UNIX Security References
restricted shells : Practical UNIX & Internet Security, 8.1.4.2. Restricted shells under Berkeley versions
SUID files, list of : Practical UNIX & Internet Security, B.3. SUID and SGID Files
sulog log under : Practical UNIX & Internet Security, 4.3.7.1. The sulog under Berkeley UNIX
utmp and wtmp files : Practical UNIX & Internet Security, 10.1.2. utmp and wtmp Files

BSD UNIX operating system : DNS & BIND, 1.1. A (Very) Brief History of the Internet

BSD-Compress scheme : TCP/IP Network Administration, A.2. The PPP Daemon

BSD/OS (operating system) : Practical UNIX & Internet Security, 1.3. History of UNIX

BSD4_3 and BSD4_4 macros : sendmail, 18.8. Alphabetized Reference

bsh (Bash shell) : Practical UNIX & Internet Security, 8.1.4.4. No restricted bash

BSI/GISA : Practical UNIX & Internet Security, F.3.4.15. Germany: government institutions

bstat utility : DNS & BIND, 7.6.2. Understanding the BIND Statistics

btree database class : sendmail, 33.8. Alphabetized Reference

buffers

checking boundaries : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
for editors : Practical UNIX & Internet Security, 11.1.4. Trojan Horses
overruns : TCP/IP Network Administration, 6.1.5.4. Maximum transmission unit
tokenizations : (see workspace)

bugs

Practical UNIX & Internet Security, 1.1. What Is Computer Security?
Practical UNIX & Internet Security, 1.4.2. Software Quality
Practical UNIX & Internet Security, 23.1.2.1. What they found
Practical UNIX & Internet Security, 27.2.3. Buggy Software
Practical UNIX & Internet Security, 27.2.5. Security Bugs that Never Get Fixed
sendmail, 18.2. Vendor Versus Compiling
sendmail, 18.8. Alphabetized Reference
sendmail, 22.3.1. SMTP debug
(see also debugging)
(see
Bugtraq mailing list : Practical UNIX & Internet Security, E.1.3.3. Bugtraq
command-line : Building Internet Firewalls, 8.1. Electronic Mail
db library package : sendmail, C.2. Get the Source
fixes : sendmail, 2.2. Read the Documents
hacker challenges : Practical UNIX & Internet Security, 27.2.4. Hacker Challenges
hardware : Practical UNIX & Internet Security, 27.2.1. Hardware Bugs
.htaccess file : Practical UNIX & Internet Security, 18.3.1. The access.conf and .htaccess Files
in packet filtering packages : Building Internet Firewalls, 6.1.2.1. Current filtering tools are not perfect
keeping secret : Practical UNIX & Internet Security, 2.5. The Problem with Security Through Obscurity
nested angle brackets : sendmail, 10.4. Nested Angle Brackets
NIS and vfork : sendmail, 18.8. Alphabetized Reference
tips on avoiding : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs

bugs (biological) : Practical UNIX & Internet Security, 12.2.1.7. Bugs (biological)

BugTraq mailing list : Building Internet Firewalls, A.3.4. BugTraq

building

sendmail, 18.3.2. The makesendmail Script

(see also configuration)

alias database

sendmail, 24.5.1. Rebuild the Alias Database
sendmail, 24.5.2. Check the Right Side of Aliases

bastion hosts : Building Internet Firewalls, 5.8. Building a Bastion Host

sendmail

sendmail, 18.3.2. The makesendmail Script
sendmail, 18.5. Run Make
sendmail, 19.2. Build with m4

bulk erasers : Practical UNIX & Internet Security, 12.3.2.3. Sanitize your media before disposal

bulk precedence

sendmail, 14.4. Precedence
sendmail, 25.5.5. Precedence: bulk

byte-by-byte comparisons

Practical UNIX & Internet Security, 9.2.1. Comparison Copies
Practical UNIX & Internet Security, 9.2.1.3. rdist

byte-oriented masks : TCP/IP Network Administration, 2.3. Subnets

bytes, zero-filled : Practical UNIX & Internet Security, 7.4. Software for Backups

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