failback configuration, 159–160
failed cluster nodes, removing, 188
failing devices, Stonith for. See Stonith (shoot the other node in the head)
failover, 10
in Heartbeat, 161–162
license manager, 162
with Mon, 324–325
IPAT for, 116
stateful, 275–278
fallback entry, 272
fat clients, 362
fault-tolerant print spoolers, 345
cluster nodes in, 345–347
/etc/printcap file for, 349–350
/etc/printcap.local file for, 348–349
job ordering in, 345–346
LPRng for, 346–348
print jobs in, 346–347, 350–351
faxes, 362, 365
fcntl system, 282–283, 285
fdutils package, 157
fg option, 296
file lock arbitration, 281, 286
File Transfer Protocol (FTP)
for downloading software, 369–371
for iptables and ipchains, 40–41
monitoring, 264
persistent connections, 248
filesystems
for clusters, 395–396
root, 63–64
filters for packets, 34–38
FIN packets, 243–244
findif program, 149–150
finding locks held by kernel, 286–288
firewalls, 34, 92–93
firstboot script, 23
fixed scheduling methods, 202–203
floating licenses, 246–247
floppycontrol utility, 157
force-reload command, 129
forcing
CPAN module installation, 265
Heartbeat failover, 324–325
standby mode, 160
Stonith events, 323–324
system reboots, 178
FORWARD hooks, 245–246
FORWARD rules, 35–37
fping.monitor script
paths in, 319
running, 308–309
fping package
compiling and installing, 304
path to, 319
FTP (File Transfer Protocol)
for downloading software, 369–371
for iptables and ipchains, 40–41
monitoring, 264
persistent connections, 248
functions script, 23, 126
fwmarked packets, 250–253