absolute path names, 403
account administration
without Active Directory, 342–343
for clusters, 189–190
in SSH, 78–79
ACID techniques, 366
active-active server configuration, 154
active connections, 203
Active Directory, 341–343, 361
addclients program, 100, 105
Address Resolution Protocol (ARP)
GARP, 122–125
for LVS-DR cluster broadcasts, 233–234, 236–238
addresses, IP. See IP addresses
administrative networks, 113
ADSL (Asymmetric Digital Subscriber Line), 26
advanced power management, 22
advisory locking, 280
aep1000 script, 21
affinity, port, 250
alarms in Heartbeat, 157
alerts
Heartbeat, 157–158
Mon, 302, 319
SNMP, 28
aliases
IP
creating and deleting, 120–121
failing over, 116
in haresources file, 148–149
in Heartbeat, 116–125
for source addresses, 117
in linuxconf, 382
anacron script, 21–23, 29
Apache
CGI programs under, 286
configuration, 397–398
BindAddress entry, 399
on cluster nodes, 400–403
DocumentRoot entry, 398
Listen entry, 399–400
Port entry, 399
on real server, 218–219
self-referential URLs, 403–404
ServerName entry, 398
verifying, 404–405
for Ganglia, 330, 332
superfluous messages in, 260
apcmaster device, 168
apcmastersnmp device, 168
apcsmart device, 168
API (application programming interface), 3, 396
apmd script, 22
AppConfig module, 97
arbitration, lock, 5, 280
kernel, 280–283
NLM for, 284–285
potential methods, 395–396
ARP (Address Resolution Protocol)
GARP, 122–125
for LVS-DR cluster broadcasts, 233–234, 236–238
arpwatch script, 22
Asymmetric Digital Subscriber Line (ADSL), 26
atd script, 22, 316
attribute caching, 291
audible alarms, 157
authentication
for cluster accounts, 343–345
in SSH, 76–77
auto_failback entry, 159–160, 164, 176
autofs script, 22
automated processes
dependency failure fixing, 392
NIC selection process, 149–151
autoreload entry, 268