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# Index: N

name : 3.1. Names and Addresses
name service
  1.7. Application Layer
  8. Configuring DNS Name Service
  (see also DNS)
  (see also Domain Name Service)
  addresses : (see addresses)
  process : 3.3.4. BIND, resolver, and named
  troubleshooting
    11.3. Testing Basic Connectivity
    11.6. Checking Name Service
Name Service Switch file (nsswitch.conf) : 9.3.1. The nsswitch.conf file
named server daemon
  5.4. The Internet Daemon
  8.1. BIND: UNIX Name Service
  booting : 8.3.3. The Cache Initialization File
  command : C.1. The named Command
  configuring : 8.3. Configuring named
  process : 3.3.4. BIND, resolver, and named
  starting at startup : 8.3.6.1. Starting named
  tools reference : C. A named Reference
named.boot file
  8.3.1. The named.boot File
  11.6.3. Cache corruption
  C.1. The named Command
  configuration commands : C.2. named.boot Configuration Commands
    listed : 8.3.1. The named.boot File
named.ca file : 11.6.3. Cache corruption
named.hosts file : 8.3.6. The named.hosts File
named.local file : 8.3.4. The named.local File
named.pid file : 11.6.3. Cache corruption
named.rev file : 8.3.5. The Reverse Domain File
nameserver entry, in resolv.conf : 8.2.1. The Resolver Configuration File
National Center for Supercomputer Applications (NCSA) : 13.1. The World Wide Web
National Institute of Standards and Technology (NIST)
  12.1.2.2. Use mailing lists to distribute information
  13.1. The World Wide Web
National Science Foundation (NSF) : 1.1. TCP/IP and the Internet
natural mask : 2.2.2. Classless IP Addresses
NBMA interfaces
  B.6. Interface Statements
  B.8.1. The ospf Statement
NCSA (National Center for Supercomputer Applications) : 13.1. The World Wide Web
neighbors
  acquiring : 7.5.1. Exterior Gateway Protocol
  allowing
    7.7.1.3. Exterior gateway configuration
    B.8.6. The egp Statement
net domain : 3.3.1. The Domain Hierarchy
Net/Dest : (see Net/Dest value)
Net/Dest value
  6.1.1. Determining the Interface Name
  6.1.5.5. Point-to-point
netconfig : 4.7. netconfig
Netscape browser : 13.1. The World Wide Web
netstat
  -in command : 6.1.1. Determining the Interface Name
  -ni command : 6.4.4. Troubleshooting Serial Connections
  -nr command
    2.5. The Routing Table
    7.3.1. Adding Static Routes
    11.5. Checking Routing
  to display routing table : 12.7.2. Routing control
  troubleshooting with
    11.2. Diagnostic Tools
    11.3. Testing Basic Connectivity
    11.4.3. Checking the Interface with netstat
network : (see enterprise)
  access
    balancing against computer security : 12. Network Security
    troubleshooting : 11.4. Troubleshooting Network Access
  address translation (NAT) : 4.2.1. Obtaining an IP Address
    advantages of : 4.2.1. Obtaining an IP Address
    disadvantages of : 4.2.1. Obtaining an IP Address
  administration
    1.7. Application Layer
    3.1. Names and Addresses
    avoiding problems
      11.4.2.1. ARP problem case study
      11.9. Simple Network Management Protocol
    decentralized : 2.3. Subnets
    defined
      1. Overview of TCP/IP
      11. Troubleshooting TCP/IP
    developing feel for : 12.4.1. Know Your System
    need for information about : Preface
    security responsibilites of : 12.1.3. Writing a Security Policy
    simplifying : 4.2.2. Defining the Subnet Mask
  break-ins, increasing : 12. Network Security
  building : Foreword from the First Edition
  connected or not connected to Internet : 4.1. Connected and Non-Connected Networks
  diameter : 1.7. Application Layer
    limited : 7.4.1.1. Running RIP with routed
  hardware
    1.7. Application Layer
    (see also physical, network)
    with built-in diagnostic software : 11.3.1. The ping Command
    problems with
      11.3.1. The ping Command
      11.4.3. Checking the Interface with netstat
      11.4.4.1. Network hardware problems
  heterogeneous : 1.1.2. Protocol Standards
  interfaces : 3.1. Names and Addresses
    enabling or disabling : 6.1.5.1. Enabling and disabling the interface
    information need for : 6.1. The ifconfig Command
  maps drawn by monitors : 11.9. Simple Network Management Protocol
  mask : 2.5. The Routing Table
    in RIP-2 : 7.4.2. RIP Version 2
  monitoring traffic on : 11.7. Analyzing Protocol Problems
  news : 13.5.1. Newsgroups
  numbers
    2.2.1. Address Classes
    4.2.1.1. Assigning host addresses
  problems, how to approach : 11. Troubleshooting TCP/IP
  processes : 8.2. Configuring the Resolver
  resources, controlling : 12.1.3. Writing a Security Policy
  saturated : 11.4.3. Checking the Interface with netstat
  servers : 2.7.2. Port Numbers
    configuring : 9. Configuring Network Servers
  shared media : 11.4.4. Subdividing an Ethernet
  subdividing : 11.4.3. Checking the Interface with netstat
  subnetted : 4.2.1.1. Assigning host addresses
  topology of : 2.2.2. Classless IP Addresses
  underlying : 1.4. Network Access Layer
  unreliable : 11.3.1. The ping Command
  unusual activity on : 12.4.1. Know Your System
  usage, monitoring : 5.2. Linux Kernel Configuration
  X.25 : 1.5.1.3. Fragmenting datagrams
Network Access Layer
  1.3. TCP/IP Protocol Architecture
  6.1.1. Determining the Interface Name
  protocols : 3.6. Bootstrap Protocol
Network Access Points
  1.1. TCP/IP and the Internet
  2.4. Internet Routing Architecture
  7.5.2. Border Gateway Protocol
Network Control protocols : 6.2.1. The Serial Protocols
Network File System : (see NFS)
Network Information Center : (see NIC)
Network Information Service : (see NIS)
Network Layer
  1.2. A Data Communications Model
  6.1.1. Determining the Interface Name
Network Management Station (NMS) : 11.9. Simple Network Management Protocol
Network News Transfer Protocol (NNTP) : 13.5.1. Newsgroups
Network Terminal Protocol (TELNET) : 1.7. Application Layer
network unreachable error message
  11.3. Testing Basic Connectivity
  11.5. Checking Routing
Network/Destination value
  6.1.1. Determining the Interface Name
  6.1.5.5. Point-to-point
networks file
  3.2. The Host Table
  6.1.3. Assigning a Subnet Mask
  7.3. Building a Static Routing Table
  9.3. Network Information Service
  as maps : 3.3.5. Network Information Service
newly registered hosts : 3.2. The Host Table
news message subtype : 3.4.3. Multipurpose Internet Mail Extensions
newsgroups : 13.5.1. Newsgroups
  for security information : 12.1.2.2. Use mailing lists to distribute information
  using : 4.1.1. Network Contacts
newsreader, using : 13.5.1. Newsgroups
next-hop route : 7.4.3. Open Shortest Path First
  specifying : 7.3. Building a Static Routing Table
    in RIP-2 : 7.4.2. RIP Version 2
NFS (Network File System)
  1.7. Application Layer
  3.7.1. File Sharing
  9.1. The Network File System
  9.6. Managing Distributed Servers
  benefits of : 9.1. The Network File System
NFS daemon (nfsd) : 9.1.1. NFS Daemons
NFS-based print services : 9.1.5.1. NFS print services
nfs.client script : 9.1.1. NFS Daemons
nfs.server script : 9.1.1. NFS Daemons
NFSNET backbone : 1.1. TCP/IP and the Internet
NIC (Network Information Center) : 3.3.2. Creating Domains and Subdomains
  handle : 4.4.1. Obtaining a Domain Name
NIS (Network Information Service)
  3.3.5. Network Information Service
  9.3. Network Information Service
  maps of
    3.3.5. Network Information Service
    6.1.3. Assigning a Subnet Mask
    10.6.1. Pattern Matching
NIS+ : 9.3.2. NIS+
NIST (National Institute of Standards and Technology)
  12.1.2.2. Use mailing lists to distribute information
  13.1. The World Wide Web
NMS (Network Management Station) : 11.9. Simple Network Management Protocol
NNTP (Network News Transfer Protocol) : 13.5.1. Newsgroups
no answer error message : 11.3. Testing Basic Connectivity
no more data from sender (FIN) bit : 1.6.2. Transmission Control Protocol
nobody uid
  5.4. The Internet Daemon
  9.1.2.1. The share command
non-authoritative servers : 3.3.4. BIND, resolver, and named
non-broadcast multi-access (NBMA) interfaces
  B.6. Interface Statements
  B.8.1. The ospf Statement
non-connected network : 4.1. Connected and Non-Connected Networks
non-encoded binary data : 3.4.3. Multipurpose Internet Mail Extensions
non-Internet sites, delivering mail to : C.3.1.4. Mail exchanger record
non-recursive queries : 3.3.2. Creating Domains and Subdomains
notation, dotted decimal : 2.3. Subnets
NP keyword : 12.2.1. The Shadow Password File
NS query : 11.6. Checking Name Service
NS records
  8.3.5. The Reverse Domain File
  8.3.6. The named.hosts File
NS resource records : C.3.1.2. Name server record
nservers option : 9.1.1. NFS Daemons
NSF (National Science Foundation)
  1.1. TCP/IP and the Internet
  7.5.2. Border Gateway Protocol
NSFNET : 2.4. Internet Routing Architecture
  backbone : 7.4. Interior Routing Protocols
nslookup
  4.4.1. Obtaining a Domain Name
  8.4. Using nslookup
  in troubleshooting
    11.2. Diagnostic Tools
    11.3. Testing Basic Connectivity
    11.6. Checking Name Service
nsswitch.conf file
  9.3.1. The nsswitch.conf file
  E.4.2. sendmail Options
numeric addresses : (see addresses)
numeric values, in printcap parameters : 9.2.1. The printcap File

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