Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Index: L

• command (sendmail.cf)
• • sendmail, D.1. Sun Enhancements
  • sendmail, D.4. L and G Configuration Commands
• flag : sendmail, 30.8. Alphabetized F= Flags
• flag : sendmail, 30.8. Alphabetized F= Flags
• $l macro : (see UnixFromLine option)
• $L macro : sendmail, 31.10. Alphabetized Reference
• option : (see UseErrorsTo (l) option)
• option : (see LogLevel (L) option)
• L-devices file : Practical UNIX & Internet Security, 14.5.1. Hooking Up a Modem to Your Computer
• cmds file : Practical UNIX & Internet Security, 15.4.3. L.cmds: Providing Remote Command Execution
• sys file : Practical UNIX & Internet Security, 15.3.3. Security of L.sys and Systems Files
• L= equate
• • sendmail, 18.8. Alphabetized Reference
  • sendmail, 30.4. The Equates
• LA_TYPE macro : sendmail, 18.8. Alphabetized Reference
• labeling the system : Building Internet Firewalls, 13.5.2. Labeling and Diagraming Your System
• laboratory networks : Building Internet Firewalls, 4.4.1. Laboratory Networks
• Lai, Xuejia : Practical UNIX & Internet Security, 6.4.1. Summary of Private Key Systems
• laid-off employees : Practical UNIX & Internet Security, 13.2.6. Departure
• LaMacchia, Brian : Practical UNIX & Internet Security, 19.3.4. Limitations of Secure RPC
• LANs (local area networks)
• • Practical UNIX & Internet Security, 16.1. Networking
  • Practical UNIX & Internet Security, 16.2. IPv4: The Internet Protocol Version 4
  • TCP/IP Network Administration, 1.7. Application Layer
  • (see also Ethernet)
  • applications : TCP/IP Network Administration, 3.7.1. File Sharing
  • proprietary : TCP/IP Network Administration, 3.7.1. File Sharing
  • servers : TCP/IP Network Administration, 3. Network Services
• LAN-oriented service : Building Internet Firewalls, 5.6. Selecting Services Provided by the
• Lance Ethernet Interface : TCP/IP Network Administration, 6.1.1. Determining the Interface Name
• laptop computers
• • Practical UNIX & Internet Security, 12.2.6.3. Portables
  • TCP/IP Network Administration, 11.2. Diagnostic Tools
• large transmission window size : TCP/IP Network Administration, 5.2. Linux Kernel Configuration
• last connection time : sendmail, B.1. Status file lines
• last program
• • Practical UNIX & Internet Security, 8.4.3. Finding Dormant Accounts
  • Practical UNIX & Internet Security, 10.1.2. utmp and wtmp Files
  • Practical UNIX & Internet Security, 10.1.3. last Program
  • Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file
  • Practical UNIX & Internet Security, 15.3.1. Assigning Additional UUCP Logins
  • TCP/IP Network Administration, 12.4.2.2. Checking login activity
  • -f option : Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file
• lastcomm program
• • Practical UNIX & Internet Security, 10.2. The acct/pacct Process Accounting File
  • Practical UNIX & Internet Security, 10.2.2. Accounting with BSD
• lastlog file : Practical UNIX & Internet Security, 10.1.1. lastlog File
• laws
• • Practical UNIX & Internet Security, 26. Computer Security and jungle law
  • Practical UNIX & Internet Security, 26.4.7. Harassment, Threatening Communication, and Defamation
  • backups and : Practical UNIX & Internet Security, 7.1.7. Legal Issues
  • checklist for : Practical UNIX & Internet Security, A.1.1.25. Chapter 26: Computer Security and jungle law
  • copyleft
  • • Practical UNIX & Internet Security, 9.2.1. Comparison Copies
    • Practical UNIX & Internet Security, 26.4.2. copyleft Infringement
    • Practical UNIX & Internet Security, 26.4.2.1. Software piracy and the SPA
  • criminal prosecution
  • • Practical UNIX & Internet Security, 26.2. Criminal Prosecution
    • Practical UNIX & Internet Security, 26.2.7. A Final Note on Criminal Actions
  • documentation of incidents : Building Internet Firewalls, 13.1.7. Document the Incident
  • Electronic Communications Privacy Act (ECPA) : Practical UNIX & Internet Security, 26.2.3. Federal Computer Crime Laws
  • encryption
  • • Practical UNIX & Internet Security, 6.7. Encryption and jungle law
    • Practical UNIX & Internet Security, 6.7.2. Cryptography and Export Controls
    • Practical UNIX & Internet Security, 12.2.6.3. Portables
  • enforcement agencies : Practical UNIX & Internet Security, 14.4.4.1. Kinds of eavesdropping
  • export
  • • Practical UNIX & Internet Security, 6.4.4.1. Use and export of DES
    • Practical UNIX & Internet Security, 6.7.2. Cryptography and Export Controls
    • Practical UNIX & Internet Security, 26.4.1. Munitions Export
  • federal enforcement
  • • Practical UNIX & Internet Security, 26.2.2. Federal Jurisdiction
    • Practical UNIX & Internet Security, 26.2.3. Federal Computer Crime Laws
  • indecent material : Practical UNIX & Internet Security, 26.4.5. Pornography and Indecent Material
  • liability
  • • Practical UNIX & Internet Security, 26.4. Other Liability
    • Practical UNIX & Internet Security, 26.4.7. Harassment, Threatening Communication, and Defamation
  • monitoring keystrokes : Practical UNIX & Internet Security, 24.2.3. Monitoring the Intruder
  • non-citizen access : Practical UNIX & Internet Security, 26.4.1. Munitions Export
  • patents : Practical UNIX & Internet Security, 26.4.4. Patent Concerns
  • for portable computers : Practical UNIX & Internet Security, 12.2.6.3. Portables
  • pursuing intruders : Building Internet Firewalls, 13.3. Pursuing and Capturing the
  • resources on : Practical UNIX & Internet Security, D.1.1. Other Computer References
  • search warrants
  • • Practical UNIX & Internet Security, 26.2.4. Hazards of Criminal Prosecution
    • Practical UNIX & Internet Security, 26.2.5. If You or One of Your Employees Is a Target
  • security responsibilities : Building Internet Firewalls, 11.2.3. External Factors That Influence
  • smoking : Practical UNIX & Internet Security, 12.2.1.2. Smoke
  • state and local enforcement : Practical UNIX & Internet Security, 26.2.1. The Local Option
  • trademarks : Practical UNIX & Internet Security, 26.4.3. Trademark Violations
  • vendor liability : Practical UNIX & Internet Security, 18.5.2. Trusting Your Software Vendor
• lawsuits (civil) : Practical UNIX & Internet Security, 26.3. Civil Actions
• layering firewalls : Building Internet Firewalls, 3.2. Defense in Depth
• layers
• • TCP/IP Network Administration, 1.2. A Data Communications Model
  • TCP/IP Network Administration, 1.3. TCP/IP Protocol Architecture
• LCP (Link Control Protocol)
• • TCP/IP Network Administration, 6.2.1. The Serial Protocols
  • TCP/IP Network Administration, A.2. The PPP Daemon
• LD_LIBRARY_PATH variable : sendmail, 22.2. The Environment
• LDAPMAP macro : sendmail, 18.8. Alphabetized Reference
• ldapx database class : sendmail, 33.8. Alphabetized Reference
• LDOPTS= directive : sendmail, 18.4.4. LDOPTS=
• leased telephone lines : Practical UNIX & Internet Security, 14.5.4. Physical Protection of Modems
• leases on addresses : TCP/IP Network Administration, 3.6.1. Dynamic Host Configuration Protocol
• • default-lease-time : TCP/IP Network Administration, 9.5.1. dhcpd.conf
  • renewing : TCP/IP Network Administration, 9.4.2. BOOTP extensions
• least privilege
• • Building Internet Firewalls, 3.1. Least Privilege
  • Building Internet Firewalls, 9.1.4.1. Least privilege
  • Building Internet Firewalls, 9.2.3.1. Least privilege
  • Practical UNIX & Internet Security, 5.5.3.2. Another SUID example: IFS and the /usr/lib/preserve
  • Practical UNIX & Internet Security, 13.2.5. Least Privilege and Separation of Duties
• Lee, Ying-Da : Practical UNIX & Internet Security, 22.4. SOCKS
• legal : (see laws)
• Lesk, Mike
• • Practical UNIX & Internet Security, 1.3. History of UNIX
  • Practical UNIX & Internet Security, 15.2. Versions of UUCP
• level, debugging : sendmail, 4.3. Debugging (-d)
• level, logging : (see logs/logging)
• level, version : (see versions)
• level, warning
• • sendmail, 26.1.1. syslog(3)
  • sendmail, 26.1.2. Tuning syslog.conf
• LHS, rule
• • sendmail, 8.4. Rules
  • sendmail, 8.7.1. Other Text in the LHS
  • sendmail, 28.5. The LHS
  • (see also rule sets)
  • class macros in : sendmail, 12.1.3. Class Macros in the LHS
  • wildcards for : (see wildcard operators)
• liability, legal
• • Practical UNIX & Internet Security, 26.4. Other Liability
  • Practical UNIX & Internet Security, 26.4.7. Harassment, Threatening Communication, and Defamation
• /lib directory : Practical UNIX & Internet Security, 11.5.3.6. Other files
• LIBDIRS= directive : sendmail, 18.4.5. LIBDIRS=
• libresolv.a : sendmail, 18.5.1. Use libresolv.a
• LIBS= directive : sendmail, 18.4.6. LIBS=
• libwrap.a package
• • sendmail, 18.8. Alphabetized Reference
  • sendmail, 22.4.1. Accept/Reject Connections via libwrap.a
• license agreements : Practical UNIX & Internet Security, 18.5.2. Trusting Your Software Vendor
• • comparison copies and : Practical UNIX & Internet Security, 9.2.1. Comparison Copies
• lie-detector tests : Practical UNIX & Internet Security, 13.1. Background Checks
• life, queue messages : sendmail, 13.2.2. Limit the Life of Queued Messages
• lightning
• • Practical UNIX & Internet Security, 12.2. Protecting Computer Hardware
  • Practical UNIX & Internet Security, 12.2.1.9. Lightning
• Lightweight Directory Access Protocol (LDAP)
• • sendmail, 18.8. Alphabetized Reference
  • sendmail, 33.8. Alphabetized Reference
• limit command : Practical UNIX & Internet Security, 25.2.5. Soft Process Limits: Preventing Accidental Denial
• Limit command (<Directory>) : Practical UNIX & Internet Security, 18.3.2. Commands Within the <Directory>
• limited user access : Practical UNIX & Internet Security, 8.1.5.1. Limited users
• limited_masquerade feature : sendmail, 19.6. Alphabetized m4 Macros
• limiting
• • DHCP servers : TCP/IP Network Administration, 3.6.1. Dynamic Host Configuration Protocol
  • number of processable messages : sendmail, 23.5. How the Queue Is Processed
  • queue message lifetime
  • • sendmail, 13.2.2. Limit the Life of Queued Messages
    • sendmail, 34.8. Alphabetized Reference
• line length
• • sendmail, 30.4. The Equates
  • sendmail, 30.8. Alphabetized F= Flags
• line length restriction : TCP/IP Network Administration, 3.4.3. Multipurpose Internet Mail Extensions
• Line Printer (LP) print service, in Solaris : TCP/IP Network Administration, 9.2.2. Solaris Line Printer Service
• Link Control Protocol (LCP)
• • TCP/IP Network Administration, 6.2.1. The Serial Protocols
  • TCP/IP Network Administration, A.2. The PPP Daemon
• link-level encryption : Building Internet Firewalls, 10.5.1. At What Level Do You Encrypt?
• link-level security : Practical UNIX & Internet Security, 16.3.1. Link-level Security
• link-state
• • database : TCP/IP Network Administration, 7.4.3. Open Shortest Path First
  • routing protocols
  • • TCP/IP Network Administration, 7.4. Interior Routing Protocols
    • TCP/IP Network Administration, 7.4.2. RIP Version 2
• Link-State Advertisements (LSAs)
• • TCP/IP Network Administration, 7.4.3. Open Shortest Path First
  • TCP/IP Network Administration, B.8.1. The ospf Statement
• links
• • encryption of : Practical UNIX & Internet Security, 18.4.1. Eavesdropping Over the Wire
  • link-level security : Practical UNIX & Internet Security, 16.3.1. Link-level Security
  • static : Practical UNIX & Internet Security, 23.4. Tips on Writing SUID/SGID Programs
  • symbolic, following (Web)
  • • Practical UNIX & Internet Security, 18.2.2.2. Additional configuration issues
    • Practical UNIX & Internet Security, 18.3.2. Commands Within the <Directory>
• lint program : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
• LINUX operating system
• • Practical UNIX & Internet Security, 1.3. History of UNIX
  • Practical UNIX & Internet Security, 3.3. Entering Your Password
  • Practical UNIX & Internet Security, 23.1.2.1. What they found
  • TCP/IP Network Administration, UNIX Versions
  • TCP/IP Network Administration, 4.7. netconfig
  • TCP/IP Network Administration, 10.2. Running sendmail as a Daemon
  • ext2 filesystem : Practical UNIX & Internet Security, 25.2.2.6. Reserved space
  • ifconfig command on
  • • TCP/IP Network Administration, 6.1.2. Checking the Interface with ifconfig
    • TCP/IP Network Administration, 6.1.5.3. Metric
  • kernel configuration : TCP/IP Network Administration, 5.2. Linux Kernel Configuration
  • • of PPP : TCP/IP Network Administration, 6.3. Installing PPP
  • random number generators : Practical UNIX & Internet Security, 23.7.4. Other random number generators
  • remounting filesystems on : TCP/IP Network Administration, 9.1.3.2. The vfstab and fstab files
  • sharing directories on : TCP/IP Network Administration, 9.1.2.2. The /etc/exports file
  • source directory : TCP/IP Network Administration, 5.2. Linux Kernel Configuration
• linux.mc macro control file : TCP/IP Network Administration, 10.4.1.1. Building a sendmail.cf with m4 macros
• linux.smtp.cf file
• • TCP/IP Network Administration, 10.4.2. General sendmail.cf Structure
  • TCP/IP Network Administration, 10.7. Modifying a sendmail.cf File
• list-bounce alias : sendmail, 25.5.3. A list-bounced Alias
• list-of-lists : TCP/IP Network Administration, 13.5. Mailing Lists
• list precedence : sendmail, 14.4. Precedence
• list syntax : (see mailing lists)
• List:; form addresses
• • sendmail, 17.1.2.1. A rule to handle List:;
  • sendmail, 17.3. Rule Set 0
• ListProcessor package : sendmail, 25.6.3. ListProcessor
• lists, old-style address : sendmail, 13.2.7. Accept Old-Style Lists of Addresses
• LISTSERV : TCP/IP Network Administration, 13.5. Mailing Lists
• literals : TCP/IP Network Administration, 10.6.2. Transforming the Address
• Live Script : Practical UNIX & Internet Security, 18.5.2. Trusting Your Software Vendor
• Livingston routers : Building Internet Firewalls, 6.5. Conventions for Packet Filtering
• *LK* keyword : TCP/IP Network Administration, 12.2.1. The Shadow Password File
• load : (see performance)
• local
• • aliases : sendmail, 24.1.2. Local Must Be Local
  • area networks (LANs)
  • • Practical UNIX & Internet Security, 16.1. Networking
    • Practical UNIX & Internet Security, 16.2. IPv4: The Internet Protocol Version 4
  • authentication (NIS+) : Practical UNIX & Internet Security, 19.5.4. Using NIS+
  • canonical name
  • • sendmail, 21.2.1. Determine the Local Canonical Name
    • sendmail, 31.10. Alphabetized Reference
  • checking if host is : sendmail, 17.2.1. Is the Host Local?
  • delivery : sendmail, 30.8. Alphabetized F= Flags
  • delivery agent
  • • sendmail, 6.3. The local Delivery Agent
    • sendmail, 30.2.1. Required Symbolic Names
    • sendmail, 30.8. Alphabetized F= Flags
  • domains, list of : sendmail, 32.5. Alphabetized Reference
  • gateways : (see gateways)
  • law enforcement : Practical UNIX & Internet Security, 26.2.1. The Local Option
  • newsgroups : Building Internet Firewalls, 2.4. Usenet News
  • recipients
  • • sendmail, 3.2. Role in Local Delivery
    • sendmail, 19.6. Alphabetized m4 Macros
    • sendmail, 29.6.3. Delivering to Local Recipient
  • server, local delivery on : sendmail, 19.6. Alphabetized m4 Macros
  • storage
  • • Practical UNIX & Internet Security, 12.3.4. Protecting Local Storage
    • Practical UNIX & Internet Security, 12.3.4.5. Function keys
  • users
  • • Practical UNIX & Internet Security, 15.4.1.2. USERFILE entries for local users
    • sendmail, 20.2.1. Accept Mail Only From Our Domain
    • sendmail, 31.10. Alphabetized Reference
  • UUCP handling : sendmail, 29.6.5. Handling UUCP Locally
• LOCAL_CONFIG macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_NET_CONFIG macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• local_procmail feature : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_RELAY macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_REPLAY macro (m4) : sendmail, 31.10. Alphabetized Reference
• LOCAL_RULE macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_RULE_# macros (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_RULESETS macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCAL_USER macro (m4) : sendmail, 19.6. Alphabetized m4 Macros
• LOCALDOMAIN variable : TCP/IP Network Administration, 8.2.1. The Resolver Configuration File
• localhost
• • TCP/IP Network Administration, 3.2. The Host Table
  • TCP/IP Network Administration, 7.2. The Minimal Routing Table
  • TCP/IP Network Administration, 8.3.4. The named.local File
• LOCALRES environmental variable : TCP/IP Network Administration, 11.6.4. dig: An Alternative to nslookup
• lock daemon (lockd) : TCP/IP Network Administration, 9.1.1. NFS Daemons
• lock file : sendmail, 23.2.3. The Lock File (obsolete as of V5.62): lf
• lock program : Practical UNIX & Internet Security, 12.3.5.2. X screen savers
• lock requests : (see files, lock requests, handling)
• locked accounts : Practical UNIX & Internet Security, 3.3. Entering Your Password
• locking files : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
• log files and logging
• • Building Internet Firewalls, 5.8.1.4. Safeguard the system logs
  • Building Internet Firewalls, 8.11. syslog
  • Building Internet Firewalls, 13.5.4. Keeping Activity Logs
  • Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures
  • Practical UNIX & Internet Security, 10. Auditing and Logging
  • Practical UNIX & Internet Security, 10.8. Managing Log Files
  • Practical UNIX & Internet Security, 11.5.3.5. System initialization files
  • Practical UNIX & Internet Security, 21.5. Special Considerations
  • Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
  • sendmail, 13.2.6. The Default Logging Level
  • sendmail, 18.8. Alphabetized Reference
  • sendmail, 26.1. Logging with syslog
  • sendmail, 36.7. Alphabetized Reference
  • (see also syslog)
  • access_log
  • • Practical UNIX & Internet Security, 10.3.5. access_log Log File
    • Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • across networks : Practical UNIX & Internet Security, 10.5.2.2. Logging across the network
  • aculog : Practical UNIX & Internet Security, 10.3.1. aculog File
  • agent_log file : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • archiving information : Practical UNIX & Internet Security, 7.4.2. Simple Archives
  • backups and
  • • Building Internet Firewalls, 5.10.2. Do Secure Backups
    • Practical UNIX & Internet Security, 10.2.2. Accounting with BSD
  • breakins : Practical UNIX & Internet Security, 24.1.2. Rule #2: DOCUMENT
  • C2 audit : Practical UNIX & Internet Security, 10.1. The Basic Log Files
  • checklist for : Practical UNIX & Internet Security, A.1.1.9. Chapter 10: Auditing and Logging
  • creating with SOCKS : Building Internet Firewalls, 7.6. Using SOCKS for
  • critical messages
  • • Practical UNIX & Internet Security, 10.5.3. syslog Messages
    • Practical UNIX & Internet Security, 10.5.3.1. Beware false log entries
  • documenting incidents : Building Internet Firewalls, 13.1.7. Document the Incident
  • downloaded files
  • • Practical UNIX & Internet Security, 10.3.3. xferlog Log File
    • Practical UNIX & Internet Security, 10.3.5. access_log Log File
  • of dropped packets : Building Internet Firewalls, 6.9. Where to Do Packet Filtering
  • failed su attempts : Practical UNIX & Internet Security, 4.3.7. The Bad su Log
  • file format : Practical UNIX & Internet Security, 8.2. Monitoring File Format
  • files transferred by FTP : Practical UNIX & Internet Security, 10.3.3. xferlog Log File
  • to hardcopy device : Practical UNIX & Internet Security, 10.5.2.1. Logging to a printer
  • individual users
  • • Practical UNIX & Internet Security, 10.4. Per-User Trails in the Filesystem
    • Practical UNIX & Internet Security, 10.4.3. Network Setup
  • lastlog : Practical UNIX & Internet Security, 10.1.1. lastlog File
  • managing : Practical UNIX & Internet Security, 10.8. Managing Log Files
  • manually logging
  • • Practical UNIX & Internet Security, 10.7. Handwritten Logs
    • Practical UNIX & Internet Security, 10.7.2.2. Informational material
  • memory required for
  • • Building Internet Firewalls, 12.1.3. Managing Your Disk Space
    • Building Internet Firewalls, 12.2.2. What Should You Watch For?
  • mistyped passwords : Practical UNIX & Internet Security, 10.5.3. syslog Messages
  • network services : Practical UNIX & Internet Security, 10.3.6. Logging Network Services
  • outgoing mail : Practical UNIX & Internet Security, 10.4.2. Mail
  • per-machine : Practical UNIX & Internet Security, 10.7.2. Per-Machine Logs
  • per-site : Practical UNIX & Internet Security, 10.7.1. Per-Site Logs
  • potentially criminal activity : Practical UNIX & Internet Security, 26.2.6. Other Tips
  • proxy services and : Building Internet Firewalls, 7.1.1.2. Proxy services are good at logging
  • refer_log file : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • of router actions : Building Internet Firewalls, 6.4.1. Logging Actions
  • sulog : (see sulog file)
  • Swatch program
  • • Practical UNIX & Internet Security, 10.6. Swatch: A Log File Tool
    • Practical UNIX & Internet Security, 10.6.2. The Swatch Configuration File
    • Practical UNIX & Internet Security, E.4.9. Swatch
  • syslog facility
  • • Practical UNIX & Internet Security, 10.5. The UNIX System Log (syslog) Facility
    • Practical UNIX & Internet Security, 10.5.3.1. Beware false log entries
    • sendmail, 26.1.1. syslog(3)
  • system clock and : Practical UNIX & Internet Security, 17.3.14. Network Time Protocol (NTP) (UDP Port 123)
  • tracking intruders with : Practical UNIX & Internet Security, 24.3. The Log Files: Discovering an Intruder's
  • trimlog program for : Building Internet Firewalls, B.6.5. trimlog
  • unexpectedly deleted or modified : Building Internet Firewalls, 12.2.3. The Good, the Bad, and the Ugly
  • /usr/adm/messages : Practical UNIX & Internet Security, 10.2.3. messages Log File
  • utmp and wtmp
  • • Practical UNIX & Internet Security, 10.1.2. utmp and wtmp Files
    • Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file
  • UUCP : Practical UNIX & Internet Security, 10.3.4. uucp Log Files
  • /var/adm/acct : Practical UNIX & Internet Security, 10.2. The acct/pacct Process Accounting File
  • /var/adm/loginlog : Practical UNIX & Internet Security, 10.1.4. loginlog File
  • of web servers : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • what to watch for : Building Internet Firewalls, 12.2.2. What Should You Watch For?
  • what not to log : Practical UNIX & Internet Security, 10.5.3. syslog Messages
  • -X switch for : sendmail, 26.4. Log Transactions with -X
  • xferlog : Practical UNIX & Internet Security, 10.3.3. xferlog Log File
• LOG macro : sendmail, 18.8. Alphabetized Reference
• LOG_MAIL : (see facility, mail-handling program)
• LOG_PID : sendmail, 26.1.1. syslog(3)
• logdaemon package : Practical UNIX & Internet Security, 17.3.18.5. Searching for .rhosts files
• logger command : Practical UNIX & Internet Security, 10.5.3. syslog Messages
• logging in
• • Practical UNIX & Internet Security, C.5. Starting Up UNIX and Logging In
  • Practical UNIX & Internet Security, C.5.3. Running the User's Shell
  • FTP access without : Practical UNIX & Internet Security, 17.3.2.7. Allowing only FTP access
  • Kerberos system : Practical UNIX & Internet Security, 19.6.1.1. Initial login
  • last program
  • • Practical UNIX & Internet Security, 10.1.3. last Program
    • Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file
  • lastlog file : Practical UNIX & Internet Security, 10.1.1. lastlog File
  • passwords : Practical UNIX & Internet Security, 3.3. Entering Your Password
  • preventing
  • • Practical UNIX & Internet Security, 8.4. Managing Dormant Accounts
    • Practical UNIX & Internet Security, 8.4.3. Finding Dormant Accounts
  • remotely : TCP/IP Network Administration, 1.7. Application Layer
  • restricting : Practical UNIX & Internet Security, 8.3. Restricting Logins
  • with Secure RPC : Practical UNIX & Internet Security, 19.3.3. Using Secure RPC
  • startup file attacks
  • • Practical UNIX & Internet Security, 11.5.2. Start-up File Attacks
    • Practical UNIX & Internet Security, 11.5.2.7. Other initializations
• logging out with Secure RPC[logging out:Secure RPC] : Practical UNIX & Internet Security, 19.3.3. Using Secure RPC
• loghost : TCP/IP Network Administration, 3.2. The Host Table
• logic bombs
• • Practical UNIX & Internet Security, 11.1. Programmed Threats: Definitions
  • Practical UNIX & Internet Security, 11.1.3. Logic Bombs
  • Practical UNIX & Internet Security, 27.2.2. Viruses on the Distribution Disk
• login activity, checking : TCP/IP Network Administration, 12.4.2.2. Checking login activity
• login file
• • Practical UNIX & Internet Security, 8.5.1. Secure Terminals
  • Practical UNIX & Internet Security, 11.5.2.1. .login, .profile, /etc/profile
  • Practical UNIX & Internet Security, 24.4.1.6. Changes to startup files
• login program
• • Practical UNIX & Internet Security, 8.6. The UNIX Encrypted Password System
  • Practical UNIX & Internet Security, 11.1.2. Back Doors and Trap Doors
  • Practical UNIX & Internet Security, 19.5.4. Using NIS+
  • Practical UNIX & Internet Security, 26.2.6. Other Tips
  • Practical UNIX & Internet Security, 27.1.2. Trusting Trust
• logindevperm file : Practical UNIX & Internet Security, 17.3.21.1. /etc/fbtab and /etc/logindevperm
• loginlog file : Practical UNIX & Internet Security, 10.1.4. loginlog File
• logins
• • authentication : Practical UNIX & Internet Security, 17.3.5. TACACS (UDP Port 49)
  • FTP : Practical UNIX & Internet Security, 17.3.2. (FTP) File Transfer Protocol (TCP Ports 20 and 21)
  • remote : Building Internet Firewalls, 2.3. Remote Terminal Access and Command
  • successful, from unexpected site : Building Internet Firewalls, 12.2.3. The Good, the Bad, and the Ugly
  • UUCP, additional : Practical UNIX & Internet Security, 15.3.1. Assigning Additional UUCP Logins
• logins command
• • Practical UNIX & Internet Security, 8.1.1. Accounts Without Passwords
  • Practical UNIX & Internet Security, 8.2. Monitoring File Format
• LogLevel (L) option
• • sendmail, 13.2.6. The Default Logging Level
  • sendmail, 22.8.3.3. The LogLevel option
  • sendmail, 26.1.1. syslog(3)
  • sendmail, 34.8. Alphabetized Reference
  • LogLevel variable for : sendmail, 20.1.2. Global Variables
• LOGNAME= command
• • Practical UNIX & Internet Security, 15.5.1.3. A Sample Permissions file
  • Practical UNIX & Internet Security, 15.5.2. Permissions Commands
• logout file : Practical UNIX & Internet Security, 19.3.3. Using Secure RPC
• logs/logging
• • Building Internet Firewalls, 5.8.1.4. Safeguard the system logs
  • Building Internet Firewalls, 8.11. syslog
  • Building Internet Firewalls, 13.5.4. Keeping Activity Logs
  • Practical UNIX & Internet Security, 7.1.1.1. A taxonomy of computer failures
  • Practical UNIX & Internet Security, 10. Auditing and Logging
  • Practical UNIX & Internet Security, 10.8. Managing Log Files
  • Practical UNIX & Internet Security, 11.5.3.5. System initialization files
  • Practical UNIX & Internet Security, 21.5. Special Considerations
  • Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
  • sendmail, 13.2.6. The Default Logging Level
  • sendmail, 18.8. Alphabetized Reference
  • sendmail, 26.1. Logging with syslog
  • sendmail, 36.7. Alphabetized Reference
  • (see also syslog)
  • access_log
  • • Practical UNIX & Internet Security, 10.3.5. access_log Log File
    • Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • across networks : Practical UNIX & Internet Security, 10.5.2.2. Logging across the network
  • aculog : Practical UNIX & Internet Security, 10.3.1. aculog File
  • agent_log file : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • archiving information : Practical UNIX & Internet Security, 7.4.2. Simple Archives
  • backups and
  • • Building Internet Firewalls, 5.10.2. Do Secure Backups
    • Practical UNIX & Internet Security, 10.2.2. Accounting with BSD
  • breakins : Practical UNIX & Internet Security, 24.1.2. Rule #2: DOCUMENT
  • C2 audit : Practical UNIX & Internet Security, 10.1. The Basic Log Files
  • checklist for : Practical UNIX & Internet Security, A.1.1.9. Chapter 10: Auditing and Logging
  • creating with SOCKS : Building Internet Firewalls, 7.6. Using SOCKS for
  • critical messages
  • • Practical UNIX & Internet Security, 10.5.3. syslog Messages
    • Practical UNIX & Internet Security, 10.5.3.1. Beware false log entries
  • documenting incidents : Building Internet Firewalls, 13.1.7. Document the Incident
  • downloaded files
  • • Practical UNIX & Internet Security, 10.3.3. xferlog Log File
    • Practical UNIX & Internet Security, 10.3.5. access_log Log File
  • of dropped packets : Building Internet Firewalls, 6.9. Where to Do Packet Filtering
  • failed su attempts : Practical UNIX & Internet Security, 4.3.7. The Bad su Log
  • file format : Practical UNIX & Internet Security, 8.2. Monitoring File Format
  • files transferred by FTP : Practical UNIX & Internet Security, 10.3.3. xferlog Log File
  • to hardcopy device : Practical UNIX & Internet Security, 10.5.2.1. Logging to a printer
  • individual users
  • • Practical UNIX & Internet Security, 10.4. Per-User Trails in the Filesystem
    • Practical UNIX & Internet Security, 10.4.3. Network Setup
  • lastlog : Practical UNIX & Internet Security, 10.1.1. lastlog File
  • managing : Practical UNIX & Internet Security, 10.8. Managing Log Files
  • manually logging
  • • Practical UNIX & Internet Security, 10.7. Handwritten Logs
    • Practical UNIX & Internet Security, 10.7.2.2. Informational material
  • memory required for
  • • Building Internet Firewalls, 12.1.3. Managing Your Disk Space
    • Building Internet Firewalls, 12.2.2. What Should You Watch For?
  • mistyped passwords : Practical UNIX & Internet Security, 10.5.3. syslog Messages
  • network services : Practical UNIX & Internet Security, 10.3.6. Logging Network Services
  • outgoing mail : Practical UNIX & Internet Security, 10.4.2. Mail
  • per-machine : Practical UNIX & Internet Security, 10.7.2. Per-Machine Logs
  • per-site : Practical UNIX & Internet Security, 10.7.1. Per-Site Logs
  • potentially criminal activity : Practical UNIX & Internet Security, 26.2.6. Other Tips
  • proxy services and : Building Internet Firewalls, 7.1.1.2. Proxy services are good at logging
  • refer_log file : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • of router actions : Building Internet Firewalls, 6.4.1. Logging Actions
  • sulog : (see sulog file)
  • Swatch program
  • • Practical UNIX & Internet Security, 10.6. Swatch: A Log File Tool
    • Practical UNIX & Internet Security, 10.6.2. The Swatch Configuration File
    • Practical UNIX & Internet Security, E.4.9. Swatch
  • syslog facility
  • • Practical UNIX & Internet Security, 10.5. The UNIX System Log (syslog) Facility
    • Practical UNIX & Internet Security, 10.5.3.1. Beware false log entries
    • sendmail, 26.1.1. syslog(3)
  • system clock and : Practical UNIX & Internet Security, 17.3.14. Network Time Protocol (NTP) (UDP Port 123)
  • tracking intruders with : Practical UNIX & Internet Security, 24.3. The Log Files: Discovering an Intruder's
  • trimlog program for : Building Internet Firewalls, B.6.5. trimlog
  • unexpectedly deleted or modified : Building Internet Firewalls, 12.2.3. The Good, the Bad, and the Ugly
  • /usr/adm/messages : Practical UNIX & Internet Security, 10.2.3. messages Log File
  • utmp and wtmp
  • • Practical UNIX & Internet Security, 10.1.2. utmp and wtmp Files
    • Practical UNIX & Internet Security, 10.1.3.1. Pruning the wtmp file
  • UUCP : Practical UNIX & Internet Security, 10.3.4. uucp Log Files
  • /var/adm/acct : Practical UNIX & Internet Security, 10.2. The acct/pacct Process Accounting File
  • /var/adm/loginlog : Practical UNIX & Internet Security, 10.1.4. loginlog File
  • of web servers : Practical UNIX & Internet Security, 18.4.2. Eavesdropping Through Log Files
  • what to watch for : Building Internet Firewalls, 12.2.2. What Should You Watch For?
  • what not to log : Practical UNIX & Internet Security, 10.5.3. syslog Messages
  • -X switch for : sendmail, 26.4. Log Transactions with -X
  • xferlog : Practical UNIX & Internet Security, 10.3.3. xferlog Log File
• long distance service
• • Practical UNIX & Internet Security, 14.5.4. Physical Protection of Modems
  • Practical UNIX & Internet Security, 17.3.3. TELNET (TCP Port 23)
• looking up database keys : sendmail, 20.3. Alphabetized V8.8 Subroutines
• lookups, DNS
• • Building Internet Firewalls, 8.10.1. Packet Filtering Characteristics of
  • Building Internet Firewalls, 8.10.4.2. Mismatched data between the hostname
• loopback
• • address
  • • 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, 3.2. The Host Table
    • TCP/IP Network Administration, 8.3.4. The named.local File
  • devices : TCP/IP Network Administration, 5.3.1.2. Pseudo-device
  • domain : TCP/IP Network Administration, 8.3.1.1. Configuring a caching-only nameserver
  • files : TCP/IP Network Administration, 8.1.1. BIND Configurations
  • interface
  • • TCP/IP Network Administration, 4.7. netconfig
    • TCP/IP Network Administration, 6.1.1. Determining the Interface Name
    • TCP/IP Network Administration, 6.1.5.6. Putting ifconfig in the startup files
  • route
  • • TCP/IP Network Administration, 2.5. The Routing Table
    • TCP/IP Network Administration, 7.2. The Minimal Routing Table
    • TCP/IP Network Administration, 12.7.2. Routing control
• loops
• • forwarding : sendmail, 25.7.2. Forwarding Loops
  • in HELO command : sendmail, 30.8. Alphabetized F= Flags
  • in rule sets : sendmail, 28.6.2. Rewrite Once Prefix: $:
• losses, cost of preventing
• • Practical UNIX & Internet Security, 2.3. Cost-Benefit Analysis
  • Practical UNIX & Internet Security, 2.3.4. Convincing Management
• LOTUS_NOTES_HACK macro : sendmail, 18.8. Alphabetized Reference
• lowest-cost path : TCP/IP Network Administration, 7.4.3. Open Shortest Path First
• lp (user) : Practical UNIX & Internet Security, 4.1. Users and Groups
• lp directory : TCP/IP Network Administration, 9.2.2. Solaris Line Printer Service
• lp printing system : Building Internet Firewalls, 2.14. Printing Systems
• • configuring : Building Internet Firewalls, 8.17. Printing Protocols (lpr and lp)
• lpd (Line Printer Daemon)
• • Practical UNIX & Internet Security, 17.3.18.6. /etc/hosts.lpd file
  • TCP/IP Network Administration, 9.2. Line Printer Daemon
  • commands, listed : TCP/IP Network Administration, 9.2.1.2. Using LPD
• lpr printing system
• • Building Internet Firewalls, 2.14. Printing Systems
  • TCP/IP Network Administration, 3.7.2. Print Services
  • TCP/IP Network Administration, 9.2.1.2. Using LPD
  • configuring : Building Internet Firewalls, 8.17. Printing Protocols (lpr and lp)
• lpr server, IP address of : TCP/IP Network Administration, 9.4. A BOOTP Server
• lpsystem command : TCP/IP Network Administration, 9.2.2. Solaris Line Printer Service
• lrand48 function : Practical UNIX & Internet Security, 23.7.3. drand48 ( ), lrand48 ( ), and mrand48 ( )
• ls command
• • Practical UNIX & Internet Security, 5.1.4. Using the ls Command
  • Practical UNIX & Internet Security, 5.1.5. File Times
  • Practical UNIX & Internet Security, 9.2.2. Checklists and Metadata
  • TCP/IP Network Administration, 8.4. Using nslookup
  • TCP/IP Network Administration, 11.6. Checking Name Service
  • -c option
  • • Practical UNIX & Internet Security, 5.1.5. File Times
    • Practical UNIX & Internet Security, 24.4.1.6. Changes to startup files
  • -d option : Practical UNIX & Internet Security, 9.2.2.1. Simple listing
  • -e option : Practical UNIX & Internet Security, 5.2.5.1. AIX Access Control Lists
  • -F option : Practical UNIX & Internet Security, 5.1.4. Using the ls Command
  • -g option : Practical UNIX & Internet Security, 5.1.4. Using the ls Command
  • -H option
  • • Practical UNIX & Internet Security, 5.9.2. Context-Dependent Files
    • Practical UNIX & Internet Security, 24.4.1.7. Hidden files and directories
  • -i option : Practical UNIX & Internet Security, 9.2.2.1. Simple listing
  • -l option
  • • Practical UNIX & Internet Security, 5.1.4. Using the ls Command
    • Practical UNIX & Internet Security, 5.2.5.1. AIX Access Control Lists
    • Practical UNIX & Internet Security, 5.5.1. SUID, SGID, and Sticky Bits
    • Practical UNIX & Internet Security, 24.4.1.6. Changes to startup files
  • -q option : Practical UNIX & Internet Security, 5.4. Using Directory Permissions
  • -u option : Practical UNIX & Internet Security, 5.1.5. File Times
• lsacl command : Practical UNIX & Internet Security, 5.2.5.2. HP-UX access control lists
• lsof program : Practical UNIX & Internet Security, 25.2.2.7. Hidden space
• lstat function : Practical UNIX & Internet Security, 23.2. Tips on Avoiding Security-related Bugs
• Lucifer algorithm
• • Practical UNIX & Internet Security, 6.4.4. DES
  • Practical UNIX & Internet Security, 6.4.4.3. DES strength
• LUCIFER cipher : Practical UNIX & Internet Security, 6.4.4. DES
• LUSER-RELAY macro (m4)
• • sendmail, 19.6. Alphabetized m4 Macros
  • sendmail, 31.10. Alphabetized Reference

Search | Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

[ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ]