N

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name resolution
     Net::DNS Perl module
name server records (see NS records)
name-based virtual hosts
named (name daemon) 2nd
     configuration files
     files
     using as local caching-only name server
named-bootconf.pl (Perl script)
named.conf file
     example
names, resolving to IP addresses with DNS
nash shell
NAT (Network Address Translation)
     iptables POSTROUTING tables
     security and
NCP (Network Control Protocol)
ncsa_auth command (Squid)
neat command
Nessus (network scanner)
net (kernel) subdirectories
Net::DNS module
     name resolution
NetBIOS name server
netcat utility (nc) 2nd 3rd
     examples
     obtaining
netconfig utility 2nd
Netfilter
netgroups
netlogon (Samba share)
netstat utility
     checking routing information
     examples
     inaccessible services, troubleshooting
     netstat command 2nd
     route command vs.
Network Administration Tool
Network Control Protocol (NCP)
network interfaces
     activating or deactivating with ifconfig
     configuration files 2nd
     configuring with ifconfig
     IP addresses
     manual tasks, common
network scanning detector
Network Time Protocol (NTP) 2nd
     software package components
networking
     client management
         DHCP
         Exam 202 review
         LDAP
         NIS
         PAM
     configuration
         advanced, and troubleshooting
         ARP and arp command
         arpwatch command
         common files
         configuration tools
         dial-up connections
         Exam 202 review
         ifconfig, using
         route command, using
     configuring Linux as PPP client
     fundamentals
         configuring Linux as PPP client
         review questions and exercises
     security, syslog and
     services 2nd
         Apache
         Apache web server
         DNS 2nd
         inetd
         MTA (Mail Transfer Agent)
         NFS and Samba daemons 2nd
         review questions and exercises
         Secure Shell (OpenSSH)
         sharing
         sharing using Samba
         TCP wrappers
         xinetd
    TCP/IP
         configuration and troubleshooting
         fundamentals
networking script
networks
     diagramming for firewall and routing
     IDS tools
     number of hosts supported
     scanning tools
     troubleshooting
         checking routing with netstat and route
         common commands
         device configuration files
         DNS errors
         essential steps
         Exam 202 review
         hardware problems
         inaccessible services
networks file
     troubleshooting
newaliases command
newgroup command
newgrp command
news readers
news server
     overview
news, Exam 202 review
newsfeeds file
newsgroups 2nd
     archives
     contributing to
     customizing for INN
     monitoring
     top-level categories
NFS (Network File System) 2nd 3rd
     client
     configuring server
         NFS packages, daemons, and utilities
         NFS server exports
         remote root users
         security
     Exam 201 review and exercises
     mounting with autofs
     remote filesystems, mounting
     services, starting and stopping
     tools
nfsstat command
nice command 2nd 3rd
     leading dash
     renice
nice number 2nd
nicknames, NIS maps
NICs (network interface cards)
     configuration
    Ethernet
         configuration files
         connecting small office to cable or DSL modem
     problems with 2nd
         reviewing screen output
NIS (Network Information Service) 2nd
     client
         compat
         setting up as slave server
     domain name
     maps and tools
         keeping maps current
         map lookups and nicknames
         netgroups
         RPC calls
     master server
nl command 2nd
nmap utility
     inaccessible services and
nmbd 2nd 3rd
nmblookup command
NNTP (Network News Transfer Protocol)
     clients
     files and directories used by innd daemon
     nntp_passwd file
nobody account, anonymous FTP and
nologin file
non-sharable data
nonrewinding device file
     verifying backups
nonvolatile memory
not operator (!)
Novell/SuSE systems, YAST/Yast2 network configuration tools
NS records
nslookup utility 2nd 3rd
nss_ldap package
     configuring
nsswitch file
nsswitch.conf file 2nd
     name resolution
ntfs filesystem
NTP (Network Time Protocol) 2nd
     software package components
ntpd
     ntp.conf file
ntpdate command
ntpdc program
ntpq program
ntptrace command
null modem cable