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Index: L

labeling the system: 27.5.2. Labeling and Diagramming Your System

laboratory networks: 6.7.1. Laboratory Networks

LAN-oriented service: 10.6. Selecting Services Provided by a Bastion Host

LanMan format: 21.2. Passwords

LanManager: 17.4. File Sharing for Microsoft Networks

Layer 2 Transport Protocol (L2TP): 14.12. Layer 2 Transport Protocol (L2TP)

layering rewalls: 3.2. Defense in Depth

LDAP (Lightweight Directory Access Protocol): 2.7. Naming and Directory Services

20.5. Lightweight Directory Access Protocol (LDAP)

least privilege principle: 3.1. Least Privilege

24.1.4.1. Least privilege
24.2.4.1. Least privilege

legal issues

documentation of incidents: 27.1.8. Document the Incident
pursuing intruders: 27.3. Pursuing and Capturing the Intruder
security responsibilities: 25.2.3. External Factors That Influence Security Policies

lesystems, network: 2.4.2. File Sharing

Lightweight Directory Access Protocol (see LDAP)

Linux (see Unix also Unix)

11.2.1.1. syslog Linux example

(see also Unix)

bastion host: 11. Unix and Linux Bastion Hosts

Internet services on: 11.3.1. How Are Services Managed Under Unix?

11.3.3. Which Services Should You Leave Enabled?

disabling: 11.3.2. Disabling Services Under Unix

11.3.4. Specific Unix Services to Disable

installing and modifying: 11.4. Installing and Modifying Services

ipchains: 8.9.1. Linux ipchains and Masquerading

compared to ipfilter: 8.9.3. Comparing ipfilter and ipchains
using: 8.9.1.6. Using ipchains (including masquerading)

ipfilter: 8.9.2. ipfilter

example: 8.5. Conventions for Packet Filtering Rules

machine

configuring: 11.5. Reconfiguring for Production
securing: 11.2. Securing Unix

masquerading: 8.9.1.3. Masquerading

netfilter: 8.9.4. Linux netfilter

syslog example: 11.2.1.1. syslog Linux example

Linux Documentation Project: A.1.3. The Linux Documentation Project

Linux Router Project: A.1.4. The Linux Router Project

Livingston routers: 8.5. Conventions for Packet Filtering Rules

LMRepl service: 22.6.3. Windows NT Directory Replication

local newsgroups: 2.3.2. Usenet News

lockd: 17.3.4. File Locking with NFS

locking files, with NFS: 17.3.4. File Locking with NFS

logins

remote: 2.5.1. Remote Terminal Access and Command Execution
successful, from unexpected site: 26.2.4. The Good, the Bad, and the Ugly

logs: 7.3.1. Where will logs go, and how?

10.9.4. Safeguard the System Logs

22.1.1. syslog

27.5.4. Keeping Activity Logs

of accepted/dropped packets: 8.8.7. It Should Be Able to Log Accepted and Dropped Packets

backups and: 10.12.2. Do Secure Backups

creating with SOCKS: 9.5.1. Versions of SOCKS

memory required for: 26.1.3. Managing Your Disk Space

26.2.3. What Should You Watch For?

network address translation: 5.4.2.4. Dynamic allocation of addresses interferes with logging

proxy services: 5.3.1.1. Proxy services can be good at logging

of router actions: 8.3.1. Logging Actions

setting up

on Unix: 11.2.1. Setting Up System Logs on Unix
on Windows NT: 12.3.1. Setting Up System Logs Under Windows NT

trimlog program for: B.6.10. trimlog

unexpectedly deleted or modified: 26.2.4. The Good, the Bad, and the Ugly

what to watch for: 26.2.3. What Should You Watch For?

lookups, DNS: 20.1.1. Packet Filtering Characteristics of DNS

20.1.4.3. Mismatched data between the hostname and IP address DNS trees

Lotus Notes: 16.5. Lotus Notes and Domino

lp/lpr printing systems: 17.6.1. lpr and lp

L2TP (Layer 2 Transport Protocol): 14.12. Layer 2 Transport Protocol (L2TP)

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