F

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