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Index: V

comments and : sendmail, 27.3. V8 Comments
killing and restarting daemon : sendmail, 4.1.1.1. Kill and restart, beginning with V8.7
m4 preprocessor : sendmail, 19. V8 m4 Configuration
obtaining source code : sendmail, 2.1. Get the Source
Sun Microsystem V8.8 enhancements : sendmail, D. Sun Enhancements

vacation program : sendmail, 25.5.5. Precedence: bulk

vacuums, computer : Practical UNIX & Internet Security, 12.2.1.3. Dust

VALIDATE= command : Practical UNIX & Internet Security, 15.5.2. Permissions Commands

validating firewalls : Building Internet Firewalls, 6.8.7. It Should Be Able to Log Accepted and

vampire taps : Practical UNIX & Internet Security, 12.3.1.5. Fiber optic cable

Van Jacobson header compression

Practical UNIX & Internet Security, 16.2. IPv4: The Internet Protocol Version 4
TCP/IP Network Administration, 5.2. Linux Kernel Configuration
TCP/IP Network Administration, 6.4.1. slattach
disabling : TCP/IP Network Administration, A.2. The PPP Daemon

vandalism

Building Internet Firewalls, 1.2.2.2. Vandals
Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures
Practical UNIX & Internet Security, 12.2.4. Vandalism
Practical UNIX & Internet Security, 12.2.4.3. Network connectors

/var directory

Practical UNIX & Internet Security, 4.3.7. The Bad su Log

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

(see also /usr directory)

/var/adm directory : Practical UNIX & Internet Security, 11.5.3.6. Other files

/var/adm/acct : Practical UNIX & Internet Security, 10.2. The acct/pacct Process Accounting File

/var/adm/lastlog file : Practical UNIX & Internet Security, 10.1.1. lastlog File

/var/adm/loginlog file : Practical UNIX & Internet Security, 10.1.4. loginlog File

/var/adm/messages

Practical UNIX & Internet Security, 4.3.7. The Bad su Log
Practical UNIX & Internet Security, 10.2.3. messages Log File

/var/adm/savacct : Practical UNIX & Internet Security, 10.2. The acct/pacct Process Accounting File

/var/adm/sulog file : Practical UNIX & Internet Security, 4.3.7. The Bad su Log

/var/adm/wtmp file

Practical UNIX & Internet Security, 10.1.2. utmp and wtmp Files
Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file

/var/adm/xferlog : Practical UNIX & Internet Security, 10.3.3. xferlog Log File

/var/log directory : Practical UNIX & Internet Security, 11.5.3.6. Other files

/var/run/dhcpd.pid file : TCP/IP Network Administration, D.2. The dhcpd Command

/var/spool/mqueue temporary files : TCP/IP Network Administration, 10.5.4. The Set Option Command

/var/spool/uucp/.Admin directory : Practical UNIX & Internet Security, 10.3.4. uucp Log Files

/var/yp/Makefile file : sendmail, 7.3.1. The hostname

variable-length subnet masks (VLSMs) : TCP/IP Network Administration, 4.2.2. Defining the Subnet Mask

variables

bounds checking : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs

to CGI scripts : Practical UNIX & Internet Security, 18.2.3.1. Do not trust the user's browser!

environment

sendmail, 5.3.12. Environment variables
sendmail, 22.2. The Environment

global : sendmail, 20.1.2. Global Variables

vc option (nslookup) : DNS & BIND, 11.3. Option Settings

Vendor Extensions field, in BOOTP : TCP/IP Network Administration, 3.6.1. Dynamic Host Configuration Protocol

vendors : Practical UNIX & Internet Security, 27.3.3. Your Vendor?

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

sendmail versions

sendmail, 18.2. Vendor Versus Compiling
sendmail, 27.5.1. The vendor
(see also versions)

vendor-neutral language : TCP/IP Network Administration, 11.9. Simple Network Management Protocol

vendor-specific BIND options : DNS & BIND, 6.4. Vendor-Specific Options

vendor-specific syntax : TCP/IP Network Administration, 10.5.1. The Version Level Command

ventilation

Practical UNIX & Internet Security, 12.2.1.10. Vibration
(see also dust; smoke and smoking)
air ducts : Practical UNIX & Internet Security, 12.2.3.2. Entrance through air ducts
holes (in hardware) : Practical UNIX & Internet Security, 12.2.4.1. Ventilation holes

VERB command (ESMTP) : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

VERB command (sendmail) : Practical UNIX & Internet Security, 17.3.4.3. Improving the security of Berkeley sendmail V8

VERB command (SMTP) : sendmail, 30.8. Alphabetized F= Flags

Verbose (v) option

sendmail, 34.1.3. Appropriateness of Options
sendmail, 34.8. Alphabetized Reference

verbose mode

sendmail, 4.2. Verbose (-v)
sendmail, 23.4.1. Printing the Queue in Verbose Mode
sendmail, 23.6.2.2. Combine -v with -q
sendmail, 34.8. Alphabetized Reference
sendmail, 36.7. Alphabetized Reference
TCP/IP Network Administration, 6.4.4. Troubleshooting Serial Connections
TCP/IP Network Administration, A.1. Dial-Up IP
TCP/IP Network Administration, A.3. chat

verify mode

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

verifying : (see testing)

Verisign Inc. : Practical UNIX & Internet Security, 18.6. Dependence on Third Parties

VERSIONID macro

sendmail, 19.6. Alphabetized m4 Macros
TCP/IP Network Administration, 10.4.1.1. Building a sendmail.cf with m4 macros

versions

sendmail, 5.2.1. Version

(see also V configuration command)

BIND

DNS & BIND, Versions
DNS & BIND, 3.1. Getting BIND
DNS & BIND, 10.11.1. BIND Version
DNS & BIND, 15.4.2. A Bad Example
sendmail, 21.1.1. Which DNS? 4.8.3 or 4.9?
interoperability problems : DNS & BIND, 13.5. Interoperability and Version Problems
transitions between : DNS & BIND, 13.4. Transition Problems

host status file : sendmail, B.1. Status file lines

m4

sendmail, 19.2. Build with m4
sendmail, 31.10. Alphabetized Reference

mc files : sendmail, 19.6. Alphabetized m4 Macros

qf file : sendmail, 23.9. The qf File Internals

sendmail

sendmail, UNIX and sendmail Versions
sendmail, 5.2.1. Version
sendmail, 18.2. Vendor Versus Compiling
sendmail, 27.5. The V Configuration Command
sendmail, 31.10. Alphabetized Reference
sendmail, D.2. Backward Compatibility

UUCP

Practical UNIX & Internet Security, 15.2. Versions of UUCP
Practical UNIX & Internet Security, 15.4. Security in Version 2 UUCP
Practical UNIX & Internet Security, 15.4.3. L.cmds: Providing Remote Command Execution
callback feature : Practical UNIX & Internet Security, 15.4.1.5. Requiring callback

V configuration command : sendmail, D. Sun Enhancements

vertical bar (|)

! flag : sendmail, 30.8. Alphabetized F= Flags

in addresses : (see programs, delivering to)

| prefix

sendmail, 22.4.3. The F Command - Program Form
sendmail, 24.2.3. Delivery via Programs

Veteran's Health Administration : Practical UNIX & Internet Security, F.3.4.45. U.S. Veteran's Health Administration

vi editor

Practical UNIX & Internet Security, 5.5.3.2. Another SUID example: IFS and the /usr/lib/preserve
Practical UNIX & Internet Security, 11.5.2.4. .exrc
Practical UNIX & Internet Security, 11.5.2.7. Other initializations

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

vibration : Practical UNIX & Internet Security, 12.2.1.10. Vibration

victim hosts : Building Internet Firewalls, 5.6. Selecting Services Provided by the

victim machines : Building Internet Firewalls, 5.2.2. Victim Machines

video content type : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

video tape : Practical UNIX & Internet Security, 7.1.4. Guarding Against Media Failure

view command

TCP/IP Network Administration, 8.4. Using nslookup
TCP/IP Network Administration, 11.6. Checking Name Service

views : DNS & BIND, 15.4.5. Views

vipw command : Practical UNIX & Internet Security, 8.4.1. Changing an Account's Password

virtual circuits

DNS & BIND, 11.3. Option Settings
DNS & BIND, 14.2.5. The _res Structure

virtual links : TCP/IP Network Administration, B.8.1. The ospf Statement

virtual terminal devices : TCP/IP Network Administration, 5.3.1.2. Pseudo-device

virtual terminals : (see Telnet service)

virtusertable feature : sendmail, 19.6. Alphabetized m4 Macros

Virual Private Networks (VPNs) : Practical UNIX & Internet Security, 21.1.2. Uses of Firewalls

VIRUS-L list : TCP/IP Network Administration, 12.1.2.2. Use mailing lists to distribute information

viruses

Building Internet Firewalls, 1.4.2.4. A firewall can't protect against
Practical UNIX & Internet Security, 11.1. Programmed Threats: Definitions
Practical UNIX & Internet Security, 11.1.5. Viruses
Practical UNIX & Internet Security, 27.2.2. Viruses on the Distribution Disk

visibility of name space : DNS & BIND, 15.4.6. A Shadow Namespace

voice authentication : Building Internet Firewalls, 10.2.1. Something You Are

voice-message multipart subtype : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions

voltage levels : TCP/IP Network Administration, 1.2. A Data Communications Model

voltage spikes : Practical UNIX & Internet Security, 12.2.1.8. Electrical noise

VPNs (virtual private networks) : Practical UNIX & Internet Security, 21.1.2. Uses of Firewalls

VRFY command (SMTP)

Practical UNIX & Internet Security, 17.3.4.3. Improving the security of Berkeley sendmail V8
sendmail, 22.3.2. SMTP vrfy and expn
sendmail, 22.8.3.5. The PrivacyOptions option
sendmail, 30.8. Alphabetized F= Flags
TCP/IP Network Administration, 3.4.1. Simple Mail Transfer Protocol

vsprintf function : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs

VT100 terminal : Practical UNIX & Internet Security, 27.2.1. Hardware Bugs

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