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Index: T
- class
- configuration command
- line (qf file) : sendmail, 23.9. The qf File Internals
- $t macro
- option : (see TimeZoneSpec (t) option)
- option : (see QueueTimeout (T) option)
- -t switch (sendmail) : sendmail, 36.7. Alphabetized Reference
- -T switch (sendmail) : sendmail, 36.7. Alphabetized Reference
- T= equate
- tab characters for separating fields : TCP/IP Network Administration, 10.6. Rewriting the Mail Address
- table objects (NIS+) : Practical UNIX & Internet Security, 19.5.3. NIS+ Tables
- tables, adjusting manually : TCP/IP Network Administration, 2.6. Address Resolution
- tabs : (see whitespace)
- tabular data displays drawn by monitors : TCP/IP Network Administration, 11.9. Simple Network Management Protocol
- TACACS : Practical UNIX & Internet Security, 17.3.5. TACACS (UDP Port 49)
- tainting
- taintperl
- talk conferencing system
- tandem backup : Practical UNIX & Internet Security, 7.1.4. Guarding Against Media Failure
- tapes, needs for : Building Internet Firewalls, 5.3.3. What Hardware Configuration?
- tapping networks : Building Internet Firewalls, 1.2.1.3. Information Theft
- tar program
-
- Practical UNIX & Internet Security, 6.6.1.2. Ways of improving the security of crypt
- Practical UNIX & Internet Security, 7.3.2. Building an Automatic Backup System
- Practical UNIX & Internet Security, 7.4.2. Simple Archives
- Practical UNIX & Internet Security, 7.4.4. Encrypting Your Backups
- Practical UNIX & Internet Security, 24.2.6. Anatomy of a Break-in
- targets, syslog.conf : sendmail, 26.1.2. Tuning syslog.conf
- Taylor UUCP : Practical UNIX & Internet Security, 15.2. Versions of UUCP
- tc parameter : TCP/IP Network Administration, 9.4. A BOOTP Server
- TCB (trusted computing base) : Practical UNIX & Internet Security, 8.5.3.2. Trusted computing base
- /tcb directory : Practical UNIX & Internet Security, 8.1.1. Accounts Without Passwords
- tcov tester : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
- TCP (Transmission Control Protocol)
-
- Building Internet Firewalls, 6.3.3.1. TCP
- Building Internet Firewalls, C.6.2. Transmission Control Protocol
- Practical UNIX & Internet Security, 16.2.4.2. TCP
- Practical UNIX & Internet Security, 17.1.3. The /etc/inetd Program
- sendmail, History
- TCP/IP Network Administration, 1.6. Transport Layer
- TCP/IP Network Administration, 1.6.2. Transmission Control Protocol
- TCP/IP Network Administration, 1.7. Application Layer
- (see also network services)
- connections, clogging : Practical UNIX & Internet Security, 25.3.4. Clogging
- packet layer : Building Internet Firewalls, 6.3.1.3. TCP layer
- proxying with : Building Internet Firewalls, 7.4.1. TCP Versus Other
- segment header : TCP/IP Network Administration, F.2. TCP Segment Header
- using reserved port : sendmail, 30.8. Alphabetized F= Flags
- UUCP over : (see UUCP)
- wrapper package (TCPWRAPPER) : sendmail, 22.4.1. Accept/Reject Connections via libwrap.a
- TCP Wrapper package
- TCP/IP services
-
- Building Internet Firewalls, C. TCP/IP Fundamentals
- Practical UNIX & Internet Security, 1.4.3. Add-On Functionality Breeds Problems
- Practical UNIX & Internet Security, 10.5.2.2. Logging across the network
- sendmail, Other Books, Other Problems
- sendmail, 3.3.1. TCP/IP
- (see also networks and networking)
- architecture : TCP/IP Network Administration, 1.3. TCP/IP Protocol Architecture
- benefits of
- checklist for
- in corporate intranets : TCP/IP Network Administration, Preface
- defined
- history of : TCP/IP Network Administration, 1.1. TCP/IP and the Internet
- need for basic understanding of : TCP/IP Network Administration, 11.1. Approaching a Problem
- network services : (see network services)
- networks : (see networks and networking)
- packet : Building Internet Firewalls, 6.3.1. TCP/IP/Ethernet
- protocol architecture : Building Internet Firewalls, C.3. TCP/IP Protocol Architecture
- over a serial line : TCP/IP Network Administration, 6.2. TCP/IP Over a Serial Line
- selected headers : TCP/IP Network Administration, F. Selected TCP/IP Headers
- standardizing on : TCP/IP Network Administration, 4.5.3. Planning Your Mail System
- tcpd (wrapper daemon)
- tcpdump : TCP/IP Network Administration, 11.2. Diagnostic Tools
- tcpwrapper program
- TCPWRAPPERS macro : sendmail, 18.8. Alphabetized Reference
- tcsh
- Telebit NetBlazer : Building Internet Firewalls, 6.5. Conventions for Packet Filtering
- telecommunications : Practical UNIX & Internet Security, 26.2.2. Federal Jurisdiction
- telephone
-
- Practical UNIX & Internet Security, 14.3.1. Originate and Answer
- (see also modems)
- calls, recording outgoing : Practical UNIX & Internet Security, 10.3.1. aculog File
- cellular : Practical UNIX & Internet Security, 12.2.1.8. Electrical noise
- checklist for : Practical UNIX & Internet Security, A.1.1.13. Chapter 14: Telephone Security
- hang-up signal : (see signals)
- lines : Practical UNIX & Internet Security, 14.5.4. Physical Protection of Modems
-
- leasing
- messages via : sendmail, 3.3.3. Other Protocols
- one-way : Practical UNIX & Internet Security, 14.4.1. One-Way Phone Lines
- physical security of : Practical UNIX & Internet Security, 14.5.4. Physical Protection of Modems
- Telnet versus : Practical UNIX & Internet Security, 17.3.3. TELNET (TCP Port 23)
- Telnet service
-
- Building Internet Firewalls, 2.3. Remote Terminal Access and Command
- Building Internet Firewalls, 6.7.1. Outbound Telnet Service
- Practical UNIX & Internet Security, 3.5. Verifying Your New Password
- Practical UNIX & Internet Security, 16.2.5. Clients and Servers
- Practical UNIX & Internet Security, 17.3.3. TELNET (TCP Port 23)
- TCP/IP Network Administration, 2.7.3. Sockets
- TCP/IP Network Administration, 5.3.1.2. Pseudo-device
- TCP/IP Network Administration, 1.7. Application Layer
- TCP/IP Network Administration, 13.3.1. archie
- Archie across : Building Internet Firewalls, 8.7.3.3. Providing Archie service to your
- configuring : Building Internet Firewalls, 8.3. Terminal Access (Telnet)
-
- in screened host architecture : Building Internet Firewalls, 9.2.1.1. Telnet
- in screened subnet architecture : Building Internet Firewalls, 9.1.1.1. Telnet
- inbound : Building Internet Firewalls, 6.7.2. Inbound Telnet Service
- inbound versus outbound : Building Internet Firewalls, 8.3. Terminal Access (Telnet)
- outbound : Building Internet Firewalls, 6.7.1. Outbound Telnet Service
- proxying with TIS FWTK : Building Internet Firewalls, 7.7.2. Telnet and rlogin Proxying with
- rlogin vs. : Practical UNIX & Internet Security, 17.3.18. rlogin and rsh (TCP Ports 513 and 514)
- test
- telnetd program : Practical UNIX & Internet Security, 11.1.2. Back Doors and Trap Doors
- Telstra : Building Internet Firewalls, A.1.1. Telstra
- temperature : Practical UNIX & Internet Security, 12.2.1.6. Temperature extremes
- TEMPEST system : Practical UNIX & Internet Security, 12.3.1.3. Eavesdropping by radio and using TEMPEST
- TempFileMode (F) option
- temporary customizations : sendmail, 19.6. Alphabetized m4 Macros
- temporary errors : sendmail, 36.5.8. EX_TEMPFAIL A Recoverable Error
- terminal name and last command : Practical UNIX & Internet Security, 10.1.3. last Program
- terminal servers : Building Internet Firewalls, 10.6. Terminal Servers and Modem Pools
- terminal, name of controlling : sendmail, 31.10. Alphabetized Reference
- terminology, importance of using standard
- terrorism : Practical UNIX & Internet Security, 12.2.5. Defending Against Acts of War and Terrorism
- test networks : Building Internet Firewalls, 4.4.1. Laboratory Networks
- testing
-
- address-testing mode : sendmail, 8.3. Rule Sets
- addresses : sendmail, 29.10.4. The check_compat Rule Set
- aliases
- backups : Practical UNIX & Internet Security, 12.3.2.1. Verify your backups
- CGI scripts : Practical UNIX & Internet Security, 18.2.3.2. Testing is not enough!
- core files and : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
- delivery agents
- firewalls : Building Internet Firewalls, 6.8.7. It Should Be Able to Log Accepted and
- group permissions : sendmail, 34.8. Alphabetized Reference
- identd information : sendmail, 20.2.4. Verify identd Information
- if host is local : sendmail, 17.2.1. Is the Host Local?
- macros : (see macro conditionals)
- options : sendmail, 13.3. Testing the Options
- password verification : Practical UNIX & Internet Security, 3.5. Verifying Your New Password
- programs : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
- reload of operating system : Building Internet Firewalls, 13.5.6. Testing the Reload of the Operating
- routers : Building Internet Firewalls, 4.4.1. Laboratory Networks
- rule-testing mode
- sendmail installation : sendmail, 2.6. Test It
- sendmail.cf file : sendmail, 15.1. Test the Configuration File
- seteuid and setreuid routines : sendmail, 22.1.1. Test seteuid and setreuid
- signatures with PGP : Practical UNIX & Internet Security, 6.6.3.5. Decrypting messages and verifying signatures
- software : Practical UNIX & Internet Security, 1.4.2. Software Quality
- users with SMTP commands : sendmail, 22.3.2. SMTP vrfy and expn
- text (TXT) resource records : TCP/IP Network Administration, C.3.1.9. Text record
- text data content type : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions
- text database class : sendmail, 33.8. Alphabetized Reference
- "Text:" header line : sendmail, 35.10. Alphabetized Reference
- tf file : sendmail, 23.2.6. The Temporary qf Rewrite Image: tf
- TFTP (Trivial File Transport Protocol)
-
- Building Internet Firewalls, 2.2. File Transfer
- Building Internet Firewalls, 8.2.2. Trivial File Transfer Protocol
- Practical UNIX & Internet Security, 17.3.7. Trivial File Transfer Protocol (TFTP) (UDP Port 69)
- TCP/IP Network Administration, 5.4. The Internet Daemon
- TCP/IP Network Administration, 9.6. Managing Distributed Servers
- target for intruders : TCP/IP Network Administration, C.3.1.8. Well-Known Services record
- tftpd server : Practical UNIX & Internet Security, 17.3.7. Trivial File Transfer Protocol (TFTP) (UDP Port 69)
- theft
-
- Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures
- Practical UNIX & Internet Security, 12.2.6. Preventing Theft
- Practical UNIX & Internet Security, 12.2.6.4. Minimizing downtime
- Practical UNIX & Internet Security, 12.4.1.2. Potential for eavesdropping and data theft
- of backups
- of information
- of RAM chips : Practical UNIX & Internet Security, 12.2.6. Preventing Theft
- third-party billing : Practical UNIX & Internet Security, 14.5.4. Physical Protection of Modems
- Thompson, Ken
- threats, incidents, attacks
-
- TCP/IP Network Administration, 1.7. Application Layer
- TCP/IP Network Administration, 4.2.1. Obtaining an IP Address
- accidental : Building Internet Firewalls, 1.2.3. Stupidity and Accidents
- assessing
- 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)
- backup-related
- bacteria programs : Practical UNIX & Internet Security, 11.1.7. Bacteria and Rabbits
- biological threats : Practical UNIX & Internet Security, 12.2.1.7. Bugs (biological)
- broadcast storms : Practical UNIX & Internet Security, 25.3.2. Message Flooding
- via CGI scripts : Practical UNIX & Internet Security, 18.2.3.2. Testing is not enough!
- changing file owners : Practical UNIX & Internet Security, 5.7. chown: Changing a File's Owner
- changing system clock : Practical UNIX & Internet Security, 5.1.5. File Times
- code breaking
- command channel : Building Internet Firewalls, 8.1. Electronic Mail
- commonly attacked accounts : Practical UNIX & Internet Security, 8.1.2. Default Accounts
- computer failures : Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures
- contacting service providers about : Building Internet Firewalls, 13.4.4.3. Vendors and service providers
- data-driven attacks : Building Internet Firewalls, 8.1. Electronic Mail
- decode aliases : Practical UNIX & Internet Security, 17.3.4.2. Using sendmail to receive email
- deep tree structures : Practical UNIX & Internet Security, 25.2.2.8. Tree-structure attacks
- denial of service
-
- Building Internet Firewalls, 1.2.1.2. Denial of Service
- Practical UNIX & Internet Security, 1.5. Role of this tutorial
- Practical UNIX & Internet Security, 17.1.3. The /etc/inetd Program
- Practical UNIX & Internet Security, 17.3.21.5. Denial of service attacks under X
- Practical UNIX & Internet Security, 25. Denial of Service Attacks and Solutions
- Practical UNIX & Internet Security, 25.3.4. Clogging
- TCP/IP Network Administration, 12.1.1. Assessing the Threat
- accidental
- automatic lockout : Practical UNIX & Internet Security, 3.3. Entering Your Password
- checklist for : Practical UNIX & Internet Security, A.1.1.24. Chapter 25: Denial of Service Attacks and Solutions
- destructive attacks : Practical UNIX & Internet Security, 25.1. Destructive Attacks
- disk attacks
- inodes : Practical UNIX & Internet Security, 25.2.2.3. Inode problems
- internal inetd services : Practical UNIX & Internet Security, 17.1.3. The /etc/inetd Program
- on networks
- overload attacks
- via syslog : Practical UNIX & Internet Security, 10.5.1. The syslog.conf Configuration File
- system overload attacks : Practical UNIX & Internet Security, 25.2.1.2. System overload attacks
- X Window System : Practical UNIX & Internet Security, 17.3.21.5. Denial of service attacks under X
- detecting, plan for : Building Internet Firewalls, 13.4.1. Planning for Detection
- dictionary attacks
- disposed materials : Practical UNIX & Internet Security, 12.3.3. Other Media
- DNS client flooding : Practical UNIX & Internet Security, 16.3.2. Security and Nameservice
- DNS nameserver attacks : Practical UNIX & Internet Security, 17.3.6.2. DNS nameserver attacks
- DNS zone transfers : Practical UNIX & Internet Security, 17.3.6.1. DNS zone transfers
- documenting
- dormant accounts
- evaluating, plan for : Building Internet Firewalls, 13.4.2. Planning for Evaluation of the Incident
- false syslog entries : Practical UNIX & Internet Security, 10.5.3.1. Beware false log entries
- filename attacks : Practical UNIX & Internet Security, 11.5.1.4. Filename attacks
- having tools and supplies for : Building Internet Firewalls, 13.5.5. Keeping a Cache of Tools and Supplies
- hidden space : Practical UNIX & Internet Security, 25.2.2.7. Hidden space
- hijacking : Building Internet Firewalls, 10.1.1. Hijacking
- HOME variable attacks : Practical UNIX & Internet Security, 11.5.1.3. $HOME attacks
- identifying and quantifying
- IFS variable attacks : Practical UNIX & Internet Security, 11.5.1.2. IFS attacks
- intruders/attackers
-
- Building Internet Firewalls, 1.2.1.1. Intrusion
- Practical UNIX & Internet Security, 1. Introduction
- TCP/IP Network Administration, 1.7. Application Layer
- TCP/IP Network Administration, 5.2. Linux Kernel Configuration
- (see also finger service)
- (see also firewalls)
- (see also TFTP)
- confronting : Practical UNIX & Internet Security, 24.2.2. What to Do When You Catch Somebody
- creating hidden files : Practical UNIX & Internet Security, 24.4.1.7. Hidden files and directories
- discovering
- legal options regarding : Practical UNIX & Internet Security, 26.1. Legal Options After a Break-in
- pursuing and capturing : Building Internet Firewalls, 13.3. Pursuing and Capturing the
- recovering from : Building Internet Firewalls, 13.1.6. Restore and Recover
- responding to
- revealing DNS information to : Building Internet Firewalls, 8.10.4.3. Revealing too much information to
- reviewing response strategies : Building Internet Firewalls, 13.4.8. Periodic Review of Plans
- slower machines and : Building Internet Firewalls, 5.3.2. How Fast a Machine?
- tracking from log files : Practical UNIX & Internet Security, 24.3. The Log Files: Discovering an Intruder's
- types of : Building Internet Firewalls, 1.2.2. Types of Attackers
- letting in accidentally : Practical UNIX & Internet Security, 11.4. Entry
- logic bombs
- mailing list for : Practical UNIX & Internet Security, E.1.3.9. RISKS
- media failure : Practical UNIX & Internet Security, 7.1.4. Guarding Against Media Failure
- meet-in-the-middle attacks : Practical UNIX & Internet Security, 6.4.5.1. Double DES
- MUD/IRC client programs : Practical UNIX & Internet Security, 17.3.23. Other TCP Ports: MUDs and Internet Relay Chat (IRC)
- multiple failed attacks : Building Internet Firewalls, 12.2.3. The Good, the Bad, and the Ugly
- newly created accounts : Practical UNIX & Internet Security, 24.4.1. New Accounts
- NIS, unintended disclosure : Practical UNIX & Internet Security, 19.4.5. Unintended Disclosure of Site Information with NIS
- notifying people about
- with NNTP : Practical UNIX & Internet Security, 17.3.13. Network News Transport Protocol (NNTP) (TCP Port
- open (guest) accounts
- password attacks : Building Internet Firewalls, 10.3.1. One-Time Passwords
- PATH variable attacks : Practical UNIX & Internet Security, 11.5.1.1. PATH attacks
- plaintext attacks : Practical UNIX & Internet Security, 6.2.3. Cryptographic Strength
- playback (replay) attacks : Practical UNIX & Internet Security, 19.6.1.2. Using the ticket granting ticket
- practicing drills for : Building Internet Firewalls, 13.5.7. Doing Drills
- coded
-
- Practical UNIX & Internet Security, 11. Protecting Against Programmed Threats
- Practical UNIX & Internet Security, 11.6.2. Shared Libraries
- Practical UNIX & Internet Security, A.1.1.10. Chapter 11: Protecting Against Programmed Threats
- Practical UNIX & Internet Security, D.1.4. Computer Viruses and Programmed Threats
- authors of : Practical UNIX & Internet Security, 11.3. Authors
- damage from : Practical UNIX & Internet Security, 11.2. Damage
- recovering from : Building Internet Firewalls, 13.1.6. Restore and Recover
- replay attacks : Practical UNIX & Internet Security, 17.3.14. Network Time Protocol (NTP) (UDP Port 123)
- responding to
- reviewing response strategies : Building Internet Firewalls, 13.4.8. Periodic Review of Plans
- rsh, problems with : Practical UNIX & Internet Security, 8.1.4.6. Potential problems with rsh
- sendmail problems : Practical UNIX & Internet Security, 17.3.4.1. sendmail and security
- spoofed network connection : Practical UNIX & Internet Security, 8.5.3.1. Trusted path
- start-up file attacks
- system clock : (see system clock)
- theft : (see theft)
- /tmp directory attacks : Practical UNIX & Internet Security, 25.2.4. /tmp Problems
- toll fraud : Practical UNIX & Internet Security, 14.4.1. One-Way Phone Lines
- traffic analysis : Practical UNIX & Internet Security, 18.4. Avoiding the Risks of Eavesdropping
- tree-structure attacks : Practical UNIX & Internet Security, 25.2.2.8. Tree-structure attacks
- Trojan horses
-
- Practical UNIX & Internet Security, 4.3.5. Using su with Caution
- Practical UNIX & Internet Security, 11.1.4. Trojan Horses
- Practical UNIX & Internet Security, 11.5. Protecting Yourself
- Practical UNIX & Internet Security, 27.2.2. Viruses on the Distribution Disk
- Kerberos and : Practical UNIX & Internet Security, 19.6.5. Kerberos Limitations
- X clients : Practical UNIX & Internet Security, 17.3.21.2. X security
- trusted hosts : (see trusted hosts)
- types of : Building Internet Firewalls, 1.2. What Are You Trying To Protect
- unattended terminals
- unowned files : Practical UNIX & Internet Security, 24.4.1.8. Unowned files
- vandalism
- 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
- bacteria programs : Practical UNIX & Internet Security, 11.1.7. Bacteria and Rabbits
- references on : Practical UNIX & Internet Security, D.1.4. Computer Viruses and Programmed Threats
- war and terrorism : Practical UNIX & Internet Security, 12.2.5. Defending Against Acts of War and Terrorism
- weakness-finding tools : Practical UNIX & Internet Security, 11.1.1. Security Tools
- by web browsers
- worms : Practical UNIX & Internet Security, 11.1.6. Worms
- three-way handshake
- thresholds triggering alarms : TCP/IP Network Administration, 11.9. Simple Network Management Protocol
- ticket-granting service
- tickets : (see Kerberos authentication system)
- tiff image subtype : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions
- Tiger
- tilde (~)
-
- in automatic backups : Practical UNIX & Internet Security, 18.2.3.5. Beware stray CGI scripts
- as home directory
- ~! in mail messages : Practical UNIX & Internet Security, 8.1.3. Accounts That Run a Single Command
- time and date
-
- Practical UNIX & Internet Security, 19.3.1.3. Setting the window
- sendmail, 13.2.2. Limit the Life of Queued Messages
- (see also intervals)
- (see also NTP)
- (see also system clock)
- collecting statistics regularly : sendmail, 26.2.3. Using cron for Daily and Weekly Statistics
- CPU, accounting
- current : (see $b macro; $d macro; $t macro)
- date command
- "Date:" header line
- defining random seed by : Practical UNIX & Internet Security, 23.8. Picking a Random Seed
- encrypted timestamp : Building Internet Firewalls, 10.2.2. Something You Know
- headers for : sendmail, 35.6.5. Date and Trace Headers
- integer representation ($t macro) : sendmail, 14.2.3. The Message-ID: Header
- last processing of queue : sendmail, 23.9. The qf File Internals
- macros and : sendmail, 31.7.2. Macros and the Date
- message origin date : (see $a macro)
- modification
-
- Practical UNIX & Internet Security, 5.1.2. Inodes
- Practical UNIX & Internet Security, 5.1.5. File Times
- Practical UNIX & Internet Security, 7.4.7. inode Modification Times
- Practical UNIX & Internet Security, 9.2.2. Checklists and Metadata
- Practical UNIX & Internet Security, 24.5.1. Never Trust Anything Except Hardcopy
- most recent connection : sendmail, B.1. Status file lines
- most recent login : Practical UNIX & Internet Security, 10.1.1. lastlog File
- of placing message in queue : sendmail, 23.9. The qf File Internals
- passwords based on : Building Internet Firewalls, 10.3.2. Time-based Passwords
- Q-Time : sendmail, 23.4. Printing the Queue
- Secure RPC window of : Practical UNIX & Internet Security, 19.3.1.3. Setting the window
- setting time zone : sendmail, 34.8. Alphabetized Reference
- service : Building Internet Firewalls, 2.11. Time Service
- time expressions : sendmail, 34.5. Option Argument Types
- total time to deliver : sendmail, 26.1.3.2. delay= total time to deliver
- transaction delay : sendmail, 26.1.3.13. xdelay= transaction
- time arguments : sendmail, 13.2.2. Limit the Life of Queued Messages
- Time Exceeded message : TCP/IP Network Administration, 11.5.2. Tracing Routes
- time to live (TTL)
- Timeout (r) option
- TIMEOUT keyword
- Timeout.ident option : sendmail, 18.8. Alphabetized Reference
- Timeout.queuereturn option
- timeouts
- timesharing
- timestamping : TCP/IP Network Administration, B.4. Trace Statements
- Timezone table (NIS+) : Practical UNIX & Internet Security, 19.5.3. NIS+ Tables
- TimeZoneSpec (t) option : sendmail, 34.8. Alphabetized Reference
- timing-out
- tip command
-
- Practical UNIX & Internet Security, 10.3.1. aculog File
- Practical UNIX & Internet Security, 14.5. Modems and UNIX
- Practical UNIX & Internet Security, 14.5.3.1. Originate testing
- Practical UNIX & Internet Security, 14.5.3.3. Privilege testing
- -l option : Practical UNIX & Internet Security, 14.5.3.1. Originate testing
- TIS Internet Firewall Toolkit
-
- Practical UNIX & Internet Security, E.4.12. TIS Internet Firewall Toolkit
- Building Internet Firewalls, B.1.1. TIS Internet
- authentication server : Building Internet Firewalls, 10.4.2. TIS FWTK
- FTP daemon : Building Internet Firewalls, 8.2.1.5. Using the TIS FWTK
- FTP proxy server : Building Internet Firewalls, 8.2.1.2. Proxying characteristics of
- ftp-gw-proxy server : Building Internet Firewalls, 9.1.1.2. FTP
- HTTP proxy server
- for proxying : Building Internet Firewalls, 7.7. Using the TIS
- S/Key password program : Building Internet Firewalls, 10.3.1. One-Time Passwords
- smap package : Building Internet Firewalls, 8.1.1.3. Improving SMTP
- SNK-004 card : Building Internet Firewalls, 10.3.3. Challenge-Response Schemes
- TMOUT variable : Practical UNIX & Internet Security, 12.3.5.1. Built-in shell autologout
- /tmp directory
- tmpfile function : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
- "To:" header line : sendmail, 35.10. Alphabetized Reference
- to= equate (syslog output) : sendmail, 26.1.3.12. to= show final recipient
- TOBUFSIZE macro : sendmail, 18.8. Alphabetized Reference
- token cards : Practical UNIX & Internet Security, 8.7.2. Token Cards
- token ring
- tokenization
-
- sendmail, 8.5. The Workspace
- sendmail, 12.1.3. Class Macros in the LHS
- sendmail, 28.2. Tokenizing Rules
- of header field contents : sendmail, 35.3. Header Field Contents
- quotation marks and : sendmail, 13.2.8. The Unquoted Space Replacement Character
- workspace buffer
- tokens : TCP/IP Network Administration, 10.6.1. Pattern Matching
- tokens, separation operators for
- toll fraud : Practical UNIX & Internet Security, 14.4.1. One-Way Phone Lines
- "too many named rulesets" error : sendmail, 29.1.2. Rule-Set Names
- tools and supplies
-
- Building Internet Firewalls, 13.5.5. Keeping a Cache of Tools and Supplies
- Practical UNIX & Internet Security, 1.3. History of UNIX
- TCP/IP Network Administration, 1.7. Application Layer
- (see also diagnostic tools)
- to find weaknesses : Practical UNIX & Internet Security, 11.1.1. Security Tools
- hand : TCP/IP Network Administration, 11.2. Diagnostic Tools
- quality of
- top-level domains
- topology statements (in dhcpd) : TCP/IP Network Administration, D.3.1. Topology Statements
- Totient Function : Practical UNIX & Internet Security, 6.4.6.1. How RSA works
- trace
-
- file : TCP/IP Network Administration, 7.7.2. Testing the Configuration
- headers : sendmail, 35.6.5. Date and Trace Headers
- options : TCP/IP Network Administration, B.4. Trace Statements
- statements (in gated)
- traceroute utility
-
- Building Internet Firewalls, 2.10. Network Management Services
- Building Internet Firewalls, 5.6. Selecting Services Provided by the
- TCP/IP Network Administration, 11.2. Diagnostic Tools
- TCP/IP Network Administration, 11.3. Testing Basic Connectivity
- TCP/IP Network Administration, 11.5. Checking Routing
- TCP/IP Network Administration, 11.5.2. Tracing Routes
- configuring : Building Internet Firewalls, 8.12.4. traceroute
- tracing connections
- tracking number : TCP/IP Network Administration, 4.4.1. Obtaining a Domain Name
- trademarks : Practical UNIX & Internet Security, 26.4.3. Trademark Violations
- traffic : (see performance)
- trailer encapsulation
- trailing dot : sendmail, 15.3. MX Records
- training
- transfer zones : Practical UNIX & Internet Security, 16.2.6.1. DNS under UNIX
- transferring files
- transformational operators : (see $ operators)
- Transmission Control Protocol (TCP)
-
- Practical UNIX & Internet Security, 16.2.4.2. TCP
- TCP/IP Network Administration, 1.6. Transport Layer
- TCP/IP Network Administration, 1.6.2. Transmission Control Protocol
- TCP/IP Network Administration, 1.7. Application Layer
- (see also tcpd)
- segment header : TCP/IP Network Administration, F.2. TCP Segment Header
- transmission protocol : sendmail, 26.1.3.8. proto= the protocol used in transmission
- transmission window size : TCP/IP Network Administration, 5.2. Linux Kernel Configuration
- Transmit Data (TD) : Practical UNIX & Internet Security, 14.3. The RS-232 Serial Protocol
- transmitters, radio : Practical UNIX & Internet Security, 12.2.1.8. Electrical noise
- transparency : Building Internet Firewalls, 4.1.2. Proxy Services
-
- of client changes for proxying : Building Internet Firewalls, 7.2.1. Using Custom Client Software for
- of packet filtering : Building Internet Firewalls, 6.1.1.2. Packet filtering doesn't require user knowledge or
- Transport Layer
- transposition (in encryption) : Practical UNIX & Internet Security, 6.1.2. Cryptography and Digital Computers
- trap doors : (see back doors)
- trashing : Practical UNIX & Internet Security, 12.3.3. Other Media
- tree structures : Practical UNIX & Internet Security, 25.2.2.8. Tree-structure attacks
- trees, DNS : Building Internet Firewalls, 8.10.3. DNS Data
- triggered updates : TCP/IP Network Administration, 7.4.1.1. Running RIP with routed
- trimlog
- Triple DES
- triple, RHS : sendmail, 9.2. The RHS Triple
- Tripwire package
-
- Building Internet Firewalls, 5.8.5.1. Auditing packages
- Building Internet Firewalls, B.2.3. Tripwire
- Practical UNIX & Internet Security, 9.2.4. Tripwire
- Practical UNIX & Internet Security, 9.2.4.2. Running Tripwire
- Practical UNIX & Internet Security, 19.5.5. NIS+ Limitations
- Practical UNIX & Internet Security, E.4.14. Tripwire
- TCP/IP Network Administration, 12.4.2.1. Checking files
- Trivial File Transport Protocol : (see TFTP)
- Trojan horses
-
- Practical UNIX & Internet Security, 4.3.5. Using su with Caution
- Practical UNIX & Internet Security, 11.1.4. Trojan Horses
- Practical UNIX & Internet Security, 11.5. Protecting Yourself
- Practical UNIX & Internet Security, 27.2.2. Viruses on the Distribution Disk
- Kerberos and : Practical UNIX & Internet Security, 19.6.5. Kerberos Limitations
- X clients : Practical UNIX & Internet Security, 17.3.21.2. X security
- trouble, looking for : TCP/IP Network Administration, 12.4.2. Looking for Trouble
- troubleshooting
-
- aliases : sendmail, 24.7. Pitfalls
- basic connectivity : TCP/IP Network Administration, 11.3. Testing Basic Connectivity
- class macros : sendmail, 32.4. Pitfalls
- command line : sendmail, 36.6. Pitfalls
- delivery agent execution : sendmail, 30.7. Pitfalls
- delivery to programs : sendmail, 24.2.3.1. Possible failures
- disasters : sendmail, 21.5. Prepare for Disaster
- DNS : sendmail, 21.6. Pitfalls
- handling down sites : sendmail, 23.7.1. Handling a Down Site
- headers : sendmail, 35.9. Pitfalls
- hints : TCP/IP Network Administration, 11.1.1. Troubleshooting Hints
- mailing lists : sendmail, 25.5. Problems with Mailing Lists
- name service : TCP/IP Network Administration, 11.6. Checking Name Service
- network access
- not overlooking the obvious : TCP/IP Network Administration, 11.1.1. Troubleshooting Hints
- preventing problems : TCP/IP Network Administration, 11.9. Simple Network Management Protocol
- protocol problems : TCP/IP Network Administration, 11.7. Analyzing Protocol Problems
- queue : sendmail, 23.8. Pitfalls
- routing : TCP/IP Network Administration, 11.5. Checking Routing
- sendmail options for : sendmail, 34.6.6. Problem Solving
- sendmail.cf file : sendmail, 27.6. Pitfalls
- serial connections : TCP/IP Network Administration, 6.4.4. Troubleshooting Serial Connections
- truncate system call : Practical UNIX & Internet Security, 5.1.7. File Permissions in Detail
- trust
-
- Practical UNIX & Internet Security, 1.1. What Is Computer Security?
- Practical UNIX & Internet Security, 2.1.1. Trust
- Practical UNIX & Internet Security, 8.5.3.2. Trusted computing base
- Practical UNIX & Internet Security, 17.1.1. The /etc/services File
- Practical UNIX & Internet Security, 27. Who Do You Trust?
- Practical UNIX & Internet Security, 27.4. What All This Means
- TCP/IP Network Administration, 12. Network Security
- of log files : Practical UNIX & Internet Security, 10.8. Managing Log Files
- TRUST_POPEN macro : sendmail, 18.8. Alphabetized Reference
- trusted hosts
-
- Practical UNIX & Internet Security, 17.3.18.1. Trusted hosts and users
- Practical UNIX & Internet Security, 17.3.18.4. The ~/.rhosts file
- TCP/IP Network Administration, 12.2.5. Secure the r Commands
- NFS and : Practical UNIX & Internet Security, 17.3.18.2. The problem with trusted hosts
- security : TCP/IP Network Administration, 9.1.5. NFS Authentication Server
- trusted path : Practical UNIX & Internet Security, 8.5.3.1. Trusted path
- trusted ports : Practical UNIX & Internet Security, 1.4.3. Add-On Functionality Breeds Problems
- trusted users
-
- Practical UNIX & Internet Security, 17.3.4.1. sendmail and security
- Practical UNIX & Internet Security, 17.3.18.1. Trusted hosts and users
- sendmail, 5.3.10. Trusted Users
- sendmail, 14.6. Trusted User
- sendmail, 19.6. Alphabetized m4 Macros
- sendmail, 22.8.1. Trusted Users
- sendmail, 32.5. Alphabetized Reference
- (see also configuration command)
- TRW Network Area and System Administrators : Practical UNIX & Internet Security, F.3.4.36. TRW Network Area and System Administrators
- /try command
- /tryflags command
- TryNullMXList (w) option
- TTL (time to live)
- tty device files
- ttymon program : Practical UNIX & Internet Security, C.5.2. Logging In
- TTYNAME macro : sendmail, 18.8. Alphabetized Reference
- ttys file
- ttytab file : Practical UNIX & Internet Security, C.5.1. Process #1: /etc/init
- ttywatch program : Practical UNIX & Internet Security, 24.2.3. Monitoring the Intruder
- tunefs command : Practical UNIX & Internet Security, 25.2.2.6. Reserved space
- tuning
-
- delivery agent : sendmail, 30.3.1. Tuning Without an Appropriate Keyword
- DNS lookups : sendmail, 34.8. Alphabetized Reference
- sendmail
- syslog.conf : sendmail, 26.1.2. Tuning syslog.conf
- tunneling
- tunnels, multicast : Building Internet Firewalls, 8.9.3. The Multicast Backbone (MBONE)
- twisted pair : Practical UNIX & Internet Security, 16.1. Networking
- TXT records
- types
-
- delivery agent
- message body : sendmail, 23.9. The qf File Internals
- nslookup : sendmail, 21.4. How to Use nslookup
- queue files : sendmail, 23.2. Parts of a Queued Message
- TZ variable : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
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