Name server, TCP/IP, 498
Named buffers (in vi), 143
Nautilus file manager (GNOME), 177–179
nawk (new awk) program, 618
Nessus program, 491
NetBSD, 20–21
NetBSD 3.0, 21
NetBSD Package Collection, 20
netcat command, 496–497
netcfg utility, 487
Netmask, explained, 486
Netnews, 273
Netnews articles
posting, 283–285
reading, 275–283
Netnews URL, 298
Netpbm, 771
Netscape Mail application, 782
Netscape web browser, 291
netstat utility, 494–496
NetTerm, using to access UNIX System, 530–531
Network, defined, 248
Network addresses, 485–486
Network administration concepts, 483–484
Network classes of service, 485–487
Network drive, 535
Network machine, finding, 504–505
Network provider setup, 487–488
Network safety, 516
Networked mail directories, 507
Networking concepts, 248
new operator, in Java, 737
newfs command, 405
newline, explained, 96
news messages (/usr/news), 387–388
Newsgroup prefixes, 274
Newsgroups, 274–275
how they are organized, 274–275
identifying, 275
moderated, 285
table of, 276
Newsreaders, 273
.newsrc file, 275, 277
NFS (Network File System), 439, 444, 483
administration of, 509–514
features of, 446–447
implementations of, 533–535
secure, 447
security of, 512–513
setting up, 510–512
troubleshooting, 514
NFS maps
direct map, 511–512
indirect map, 512
master map, 511
NFS mounting, 510–512
NFS resources
monitoring remote, 454
mounting remote, 450–452
sharing, 447–450
unmounting remote, 452
unsharing, 449–450
NFS sharing, 510
NIC (network interface card), 487–488
nice command, 313–314
Nine-track tapes, 402
NIS (Network Information Services), 447, 483
NIS client, 447
NIS compatibility mode, 509
NIS domain masters and slaves, 447
NIS servers, 446–447
NIS+, 439, 509
NIS+ servers, 446–447
nl (numbering lines) command, 556
nlsadmin, 488–489
NNTP (Network News Transfer Protocol), 274
noclobber option of set command, 117, 120
nohup (no hang up) command, 107, 319
Nonauthoritative translations (DNS), 505
Nonprinting characters, viewing, 78–79
Nontrusted system, explained, 335
notify option, 120
Novell, 11
nslookup utility, 504–505
Number base, changing, 579
Number functions
in awk, 629
in Perl, 645–646
in Python, 677–679
Numbered buffers (in vi), 144
Nvu HTML editor, 829–830
Nwebmail application, 783