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# Index: W

w command
  10.1.2. utmp and wtmp Files
  17.3.1. systat (TCP Port 11)
  24.2.1. Catching One in the Act
-Wall option (in C) : 23.2. Tips on Avoiding Security-related Bugs
WANs (Wide Area Networks) : 16.1. Networking
war : 12.2.5. Defending Against Acts of War and Terrorism
warrants
  26.2.4. Hazards of Criminal Prosecution
  26.2.5. If You or One of Your Employees Is a Target of an Investigation...
water : 12.2.1.12. Water
  humidity : 12.2.1.11. Humidity
  sprinkler systems : 12.2.1.1. Fire
  stopping fires with : 12.2.1.1. Fire
web browsers
  18.5. Risks of Web Browsers
  18.5.2. Trusting Your Software Vendor
  Netscape Navigator : 18.4.1. Eavesdropping Over the Wire
Web documents : (see HTML documents)
Web servers
  access to files on
    18.3. Controlling Access to Files on Your Server
    18.3.3. Setting Up Web Users and Passwords
  log files : 18.4.2. Eavesdropping Through Log Files
  on Macintosh : 18.2. Running a Secure Server
web servers
  18.2. Running a Secure Server
  18.2.5. Other Issues
  authentication users : 18.3.3. Setting Up Web Users and Passwords
  .htaccess file bug : 18.3.1. The access.conf and .htaccess Files
  multiple suppliers of : 18.6. Dependence on Third Parties
  as superuser : 18.2.1. The Server's UID
  symbolic-link following : 18.2.2.2. Additional configuration issues
Weiner, Michael : 6.4.4.3. DES strength
Westinghouse : F.3.4.46. Westinghouse Electric Corporation
wheel group
  4.1.3.1. The /etc/group file
  4.3.6. Restricting su
  8.5.2. The wheel Group
who command
  8.1.3. Accounts That Run a Single Command
  10.1.2. utmp and wtmp Files
  17.3.1. systat (TCP Port 11)
  24.2.1. Catching One in the Act
  24.2.4. Tracing a Connection
whodo command
  10.1.2. utmp and wtmp Files
  24.2.1. Catching One in the Act
whois command : 24.2.4.2. How to contact the system administrator of a computer you don't know
Wide Area Networks (WANs) : 16.1. Networking
window, time : (see time)
windows (glass) : 12.2.3.3. Glass walls
windows servers : (see NSWS; X Window System)
wireless transmission : (see radio, transmissions)
wiretaps : (see eavesdropping)
wiz command : 17.3.4.2. Using sendmail to receive email
wizard's password (sendmail) : 17.3.4.1. sendmail and security
WN server : 18.3. Controlling Access to Files on Your Server
workstations, backing up : 7.2.1. Individual Workstation
World Wide Web (WWW)
  18. WWW Security
  18.7. Summary
  browsers : (see web browsers)
  checklist for : A.1.1.17. Chapter 18: WWW Security
  documents on : (see HTML documents)
  eavesdropping on
    18.4. Avoiding the Risks of Eavesdropping
    18.4.2. Eavesdropping Through Log Files
  encrypting information on : 18.4.1. Eavesdropping Over the Wire
  HTTP : (see HTTP)
  logging dowloaded files : 10.3.5. access_log Log File
  posting breakins on : 24.6. Resuming Operation
  references on : E.3. WWW Pages
  security mailing list : E.1.3.10. WWW-security
  servers : (see Web servers)
  trademarks and copyrights
    26.4.2. Copyright Infringement
    26.4.3. Trademark Violations
  viruses through : 11.1.5. Viruses
world-writable files/directories : 11.6.1.1. World-writable user files and directories
Worm program : 1. Introduction
worms
  11.1. Programmed Threats: Definitions
  11.1.6. Worms
wrappers, checklist for : A.1.1.21. Chapter 22: Wrappers and Proxies
write command
  5.5.3.1. write: Example of a possible SUID/SGID security hole
  23.2. Tips on Avoiding Security-related Bugs
  in Swatch program : 10.6.2. The Swatch Configuration File
  time-outs on : 23.3. Tips on Writing Network Programs
write permission
  5.1.7. File Permissions in Detail
  5.4. Using Directory Permissions
write-protecting backups : 7.1.6.2. Write-protect your backups
write-protecting filesystems : 9.1.2. Read-only Filesystems
WRITE= command : 15.5.2. Permissions Commands
writing
  passwords (on paper) : 3.6.5. Writing Down Passwords
  programmed threats : 11.3. Authors
wtmp file
  10.1.2. utmp and wtmp Files
  10.1.3.1. Pruning the wtmp file
wtmpx file : 10.1.2. utmp and wtmp Files
wuftpd server : 17.3.2.4. Setting up an FTP server
www user/group : 18.2.2. Understand Your Server's Directory Structure

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