Index

N

name servers (NS)

authoritative, 313, 322

caching, 314, 324

domain name, 313

internet-type (IN), 321

IP addresses, 326

localhost, 321

locking down, 331

primary, 313

registrar, 313

Samba, 400

secondary, 313

TLD (top-level domain), 313

name service tools

dig, 322

host, 322

nslookup command, 321

name-based hosting, 435

named

config file, 317

daemon, 315, 316

names resolving

by Samba, 400

by Windows clients, 400

NAT (Network Address Translation)

buttons remapping, 189

routing firewall, 294

nat table, 286

NetBIOS tips, 401

netfilter, 272, 274

netstat

command, 459

listing, 77

network

backups, 109

client requests, 272

firewall configuration, 270

firewalls, 293

Network Address Translation. See NAT

Network File System. See NFS

network install boot CD, making. See boot CD creating

network install options

LAN PXE boot solution, 88

stock or custom boot CD, 87

stock or custom boot floppy, 87

network intrusion detection systems (NIDS), 241

network protocol analyzers

atmsnoop, 165

LANalyzer, 165

Microsoft Network Monitor, 165

Sniffer, 165

snoop, 165

Surveyer, 165

network securing using TCP wrappers, 275

network time protocol (NTP), 22

network troubleshooting basics, 165

network troubleshooting tools. See also troubleshooting tools

LAN monitoring via ethereal, 164

overview, 162

remote login, 163

screen utility, 165

ssh command, use of, 163

network-based backups, 119

networking/ip stack settings locking down, 78

network-node-based intrusion detection systems (NNIDS), 242

newaliases command, 499

NFS (Network File System)

installs, 85

protocols, 96

services, 277

troubleshooting references, 422

NFS behavior, monitoring

using nfsstat command, 419, 420, 421

using showmount command, 419, 420

NFS client, configuring, 410. See also NFS server, configuring

NFS commands

exportfs, 414, 422

mount, 416

nfsstat, 420, 422

rpcinfo -p, 422

showmount, 420, 422

umount, 415

NFS configuration and log files, 422

NFS directory mounting

at boot time, 410, 411

automountl, 410

manual, 410, 411

using automount, 412

NFS Server Configuration window, 414, 415

NFS server, configuring. See also NFS client, configuring

NFS service, starting, 410

shared NFS directory, adding, 408

NFS shared directory

exporting, 414

mount failure, 416

unmount failure, 415

NFS troubleshooting

export failures, 414

file and directory permissions, 417

monitoring NFS behavior, 419

mount failure, 416

slow performance, 417

unexpected NFS behavior, 418

unmount failure, 415

NFS user permissions

anonymous users, 413

read-only, sharing, 413

user IDs, mapped, 413

NFS, configuring

NFS client, 410

NFS server, 408

overview, 407

user permissions, 412

nfsstat commands, 419, 420, 421

NIDS. See network intrusion detection systems

NNIDS (network-node-based intrusion detection systems), 242

non-security-related updates, 48

non-SUSE packages, installing, 542

NOTIFY command, 335

NOTIFY message, 329

NS records, 321, 325, 330, 336

nslookup command, 321. See also dig command

NTP (network time protocol), 22

NVIDIA chipsets, 187