Book Home

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Index: H

hardware

discovering (see device discovery)
emulators: 9.2. Network Emulators and Simulators
hardware errors: 4.2.4. Traffic Measurements with netstat
identifying: 6.3. Device Identification
inventories: 1.3.1. Documentation
load generator devices: 9.1.2.2. MGEN
monitoring (see device monitoring)
swapping: 1.1. General Approaches to Troubleshooting

headers

capturing: 5.4.2.1. Controlling program behavior

5.6.1.1. Using ethereal

displaying in packets: 5.6.1.1. Using ethereal

hping settings: 9.1.1.1. hping

structure of: 5.4.2.4.3. Packet characteristics.

helpdesks: B.1. Sources of Information

hexadecimal capture: 5.4.2.3. Controlling what's displayed

5.6.1.1. Using ethereal
9.1.1.1. hping

hexdump analysis tool: 5.4.2.3. Controlling what's displayed

hidden transmission points: 4.2.2.2. pathchar

4.2.2.3. bing

higher-level services, filtering: 5.4.2.4.2. Protocol and port filtering.

h2n name server tool: 10.1.4.3. Other tools

A.4. Sources for Tools

home pages for mrtg graphs: 8.4.1.1. mrtg configuration file

honesty in network management: 1.3.2.1. Professionalism

hops

limiting number in traceroute: 4.1.1. Options
pathchar results: 4.2.2.2. pathchar
in route discovery: 4.1. Path Discovery with traceroute
in routing tables: 2.1.3. netstat
TTL counts and: 3.3.2.2. Interpreting results

host configuration

Microsoft Windows: 2.3. Microsoft Windows
system configuration files: 2.2. System Configuration Files
utilities: 2.1. Utilities

host domain name tool: 10.1.4.1. nslookup and dig

A.4. Sources for Tools

hostname configuration tool: 2.3. Microsoft Windows

hosts

configuration (see host configuration)

connectivity: 3.3.2.4. Using ping

displaying remote X Windows sessions on: 11.1.2. vnc

host authentication: 11.1.3. ssh

host-monitoring tools: 8.1. What, When, and Where

8.2. Host-Monitoring Tools
8.6. Microsoft Windows

link-level addresses: 3.3.3. Problems with ping

listing information with nslookup: 10.1.4.1. nslookup and dig

ntop results: 8.3.1.1. Interactive mode

8.3.1.2. Web mode

pinging multiple hosts: 3.3.4.1. fping

sorting traffic display by: 8.3.1.2. Web mode

traffic capture and: 5.2. Access to Traffic

hourly charts of traffic: 8.4.3. cricket

hping packet tool

custom packet generation: 9.1.1. Custom Packets Generators
source web site: A.4. Sources for Tools
testing connectivity with: 9.1.1.1. hping
testing firewalls with: 12.2.1.1. Firewall testing

HTML pages of traffic patterns: 8.4.1. mrtg

HTTP (Hypertext Transfer Protocol)

monitoring devices with HTTP servers: 7.3. Non-SNMP Approaches

ntop traffic results: 8.3.1.2. Web mode

performance and security problems: 10.1.2. HTTP

ports: 6.2.2. nmap

6.3. Device Identification

secure HTTP: 8.3.1.2. Web mode

stack fingerprinting ports and: 6.3.2. queso

troubleshooting: 10.1.2. HTTP

hubs

compared to switches: 5.2. Access to Traffic
point-monitoring tools and: 8.3. Point-Monitoring Tools
security and: 5.7.1. Switch Security
traffic capture and: 5.2. Access to Traffic
unmanaged hubs: 6.5. Mapping or Diagramming

HUP command, using with snmpd: 7.2.1.8. Agents and traps

hypotheses in troubleshooting: 12.1. Generic Troubleshooting

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