D


D/RIP network, 195, 241, 288

daemons, 10

for resource ownership, 126–127

respawning, 138

starting, 15–21

data center example, 359–360

clients in, 362–363

cluster node manager in, 361–362

clusters in, 360–361

final product, 367–368

highly available database servers in, 365–366

highly available serial devices in, 364–365

NAS server in, 363–364

data synchronization, 69–70

data tiers in N-Tier applications, 361

database servers

highly available, 365–366

in N-Tier applications, 361

deadtime entry, 135, 161

debugging mode for Mon package, 309–310

default chain policies, 38

default routes and gateways

for Heartbeat, 150–151

for LVS-DR real server, 235–236

for LVS-NAT clusters, 219–220

for routing, 44–46

for SystemImager, 102

Denial of Service (DoS) attacks, 244, 248

dependencies, 387–388

dynamic executables and shared objects, 388–389

failures in, 391–392

rpm package shared libraries, 390–391

SystemImager server software, 98

Yum for, 392–393

design goals for high-availability cluster, 256–257

destination hashing scheduling methods, 202

destination hosts, matching packets to, 45–47

/dev/ttyS0 file, 173

/dev/watchdog file, 177–178

devices, Stonith. See Stonith (shoot the other node in the head)

df command, 63, 99, 313

DHCP servers, 101–103

diff command, 30, 344

diffie-hellman-group1-sha1 key exchange process, 74

DIP (director's IP) addresses, 195

direct I/O in NFS, 296

direct routing, 198–200, 235

Directors

connection tracking table for, 242–243

Heartbeat installation on, 263

for LVS

configuration, 221–224

installation, 220

redundant, 255–256

as real servers, 227–229

Director's IP (DIP) addresses, 195

disaster recovery, 364

discretionary locking, 280

diskless workstations, 362

distributed content, 157

Distributed Lock Manager (DLM) project, 396

distributed objects, 3, 361

distribution kernels, 55

distribution vendors, 57

DLM (Distributed Lock Manager) project, 396

dmesg command, 59

DNS (Domain Name System)

with Apache, 401, 405

with cluster node manager, 362

for iptables and ipchains, 41

monitoring, 321

reverse queries in, 404

round-robin, 155–157

DocumentRoot entry, 398

DoS (Denial of Service) attacks, 244, 248

dotlock arbitration, 286

dotlock files, 281

downloading

FTP for, 369–371

Lynx for, 371–372

Perl modules, 264–266, 306

wget for, 372–373

DRBD filesystem, 395

dynamic executables, shared objects for, 388–390

dynamic HTML, 367

dynamic scheduling methods, 203–207



The Linux Enterprise Cluster. Build a Highly Available Cluster with Commodity Hardware and Free Software
Linux Enterprise Cluster: Build a Highly Available Cluster with Commodity Hardware and Free Software
ISBN: 1593270364
EAN: 2147483647
Year: 2003
Pages: 219
Authors: Karl Kopper

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