tail command, 60
TAL program, 367
tar (tape archive) files, 373–374
.tar.bz file, 372
.tar.bz2 file, 372
.tar.gz file, 372
.tar.Z file, 372
.tbz file, 372
.tbz2 file, 372
tcp option, 296
tcp_states table, 244
tcpdump utility, 143, 375–377
telnet
for cluster node access, 353
for iptables and ipchains, 42
persistence for, 249
PuTTY for, 367
for user sessions, 203
xinetd for, 16, 29
telnet.monitor script, 323
telnetd daemon, 360–361
templates, persistent connection, 247–248
testing
email, 354
Heartbeat configuration, 179–181
ldirectord configuration, 273–274
ldirectord installation, 266–267
LVS-NAT cluster configuration, 224–227
Mon package installation, 308–309
NICs, 383–385
for resource ownership, 126–128
resource scripts, 128
two-node SSH client-server connections, 82–86
Thin Clients, 362–363
time command, 293
time in Heartbeat configuration, 140
time to live (TTL) setting, 156
timeouts
for connection tracking records, 243–244
persistence, 247–248
timers, watchdog, 178
title section for Ganglia Web package, 333–334
top command, 338
total I/O operations, measuring, 294–295
touch command, 218
tracking connection records
for Director, 242–243
timeout values for, 243–244
transactions in NFS performance, 289–290
traps, SNMP, 28
troubleshooting
NICs, 384–385
tcpdump for, 375–377
trust relationships in SSH, 73–77
TTL (time to live) setting, 156
tunneling, 200–202
tux script, 29
two-node SSH client-servers, 77–78
connection tests in, 82–86
copying files in, 89
firewall rules in, 92–93
host key configuration in, 79
rsync over slow WAN connections, 89–90
rsync over SSH in, 87–89
scheduled snapshots in, 90–92
secure data transport in, 86
security improvements in, 86–87
user accounts in, 78–79
user encryption keys for, 79–82
two-way trust relationships, 73–77