Tape Archive. See tar
tape drive
cleaning, 111
devices setting up, 116
error flash codes, 111
tape rotation aspects of backups, 105, 112
tar (Tape ARchive)
file restoring features, 130
use of, 119
tar using
locally, 122
remotely, 124
TCP ports, 267
TCP wrapper services
CUPS-LPD, 276
Domain, 276
HTTPS, 276
IMAP, 276
IMAPS, 276
IPP, 276
MySQL, 276
NFS, 276
POP3
S, 276
SunRPC, 276
TCP wrappers
/etc/hosts.allow file, 279
/etc/hosts.deny file, 279
access control lists (ACL), 273
access control mechanism, 272
centralized daemon host access control, 272
for port activity monitoring, 281
for trusted network, 270
hosts.allow file, 278
hosts.deny file, 278
overview, 273
securing local services, 275
services and daemons, 275
single server access control, 270
troubleshooting, 280
using /etc/hosts.allow files, 275
using /etc/hosts.deny files, 275
TCP/IP
firewalling, 267
packet structures, 267
telnet command, 165
telnet for Sendmail problems, diagnosing, 505
terminal windows
changing colors, 143
font size changing, 143
multiple shells, 142
scrolling settings, 142
tuning, 142
testing tree, Debian, 546
text-based installation, 29
third-party
graphics drivers, 59
package repositories, 56
public keys, checking, 195
software issues, 59
tools for intrusion detection, 244
updates checking, 59
third-party updates choices
Fedora Legacy Project, 60
Progeny Linux Systems, 60
threading, UNIX, 427
threads, POSIX, 427
time command, 225
Time to Live. See TTL
TLD (top-level domain) servers, 313
TLD name servers, 313
TOH (Tower of Hanoi) backup
disadvantages, 106
imeplementation, 105
top command for
checking general processor activity, 155
checking memory leaks, 155
checking memory usage, 155
giving processes more priority, 156
kill processes, 156
processes sorting, 154
selected processes watching, 155
usage, 154
top-level domain servers. See TLD servers
Tower of Hanoi. See TOH backup
traceroute command, 166
trigger scripts
checking, 202
defined, 201
troubleshooting
Apache, 452
BIND, 315
Debian GNU/Linux, 545
Debian packages, 565
e-mail server, 485
firewall, 265
hard disk, 221
intrusion, 258
iptables, 304
kickstart problems, 96
Linux file system, 211
Linux installation, 19
Linux with Fedora, 4
modem, 341
printer setup, 374
printer, 359
remote printer access, 375
RPM packages, 207
Sendmail, 506
specialty Fedora Linux systems, 8
SUSE Linux, 523
TCP wrappers, 280
video, mouse, and keyboard, 169
web server, 427
troubleshooting tips
for mouse, 188
for video, 185
troubleshooting tools. See also network troubleshooting tools
for Linux system, 139
hardware detecting and configuring, 159, 161
rescue mode, going into, 157
root privilege, obtaining, 151, 153
screen, 139
ssh, 139
strace command, use of, 156
top command, use of, 154
trusted access control, 270
trusted network interface, 270
trusted network, 270. See also untrusted network
TTL (Time to Live) value, 314
TWM
desktop manager, 170
window manager, 174