N

name resolution methods, 437-439. See also

Domain Name System (DNS) name servers, 440 configuring, 445, 449 connecting, in DNS hierarchy, 440-441 DNS, 251

protecting, from illegal zone transfers, 458 named.conf file, 474 nameserver specification, 251 NAT, 582

negative_dns_ttl tag, 484 negative_ttl tag, 484 neighbor discovery protocol, 248 netbios name parameter, 303 netfilter, 577, 584-590 netfilter firewalls, 589-590 netstat -patune command, 575 netstat command, 256-257, 634 network cards adding manually, 234-240 changing IP address of, 241 configuring, 231-233, 243 selecting settings, 18 network configuration, 16-19 network connections configuring DNS resolver, 251-253 IPv6, 247-249 managing routes, 249, 251 testing availability of services, 255-259 testing connectivity, 253-254 testing routability, 254-255 tuning and troubleshooting, 253-265 Network Devices menu, 65 Network File System. See NFS (Network File

System) protocol Network Information System (NIS), 341,

437-438 network interface configuring, 16-19

from command line, 240-247 with YaST, 231-240 monitoring, 259-261 Network Interfaces option, 18 network load balancer, 448 Network Mode option, 17 network printers. See printers network script, configuring network interface using, 240-241 network services, testing availability of, 65,

255-259 Network Services menu, 62-66 network shares, mounting, 125-126 network tags, 481

NetworkTime Protocol (NTP), 393-400 client configuration, 398 drift file, 396-397 fundamentals, 393-394 log files, 397

securing server, 397 synchronization status, 398-399 time server configuration, 395-396 tuning server, 396-397 network traffic, monitoring, 261-265 network-bridge script, 607 network-nat script, 607 network-route script, 607 networking

NetworkManager applet, 17 networks troubleshooting, 631-634 Xen, 606-607 newaliases tool, 332 newgroup command, 101 newgrp command, 92 NFS (Network File System) protocol, 127 common options, 288 file sharing using, 285-294 mount command, 292 port numbers, 286-287 security, 285

sysconfig parameters for, 288-289 versions, 286 NFS client, 64 NFS clients, 64, 291-294 NFS installation server, 648-652 NFS server, 64

configuring, 287-291

for use in Heartbeat cluster, 563 manually, 287-289 with YaSt, 289-290 installing from, 5 tuning and monitoring, 294 using, 285-287 NFS share, mounting, 292-294 NFS4_SUPPORT parameter, 288 NFS_SECURITY_GSS parameter, 288 nice command, 211-212

NIS (Network Information System), 341, 437-438 NIS client, 65 NIS server, 65

nmap command, 257-259, 576-577 nmbd service, 300 nmblookup command, 313 noapic option, 182 node IDs, 247

nonclustered file systems, 555

nondefault software, installing with YaST, 170

nonrepudiation, 374-377

noresume option, 182

nosmp option, 182

Novell AppArmor, 12, 66

no_root_squash option, 288

nsswitch.conf, 252

NTFS file system, 127

NTP. See Network Time Protocol

NTP client, 65

ntp.conf file, 395, 398

ntpdate command, 398 ntpq command, 398-399 ntptrace command, 398

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