S
SAD (security association database), 655
Samba, 693, 709, 1021
authentication
mode, 712
server, 712
checking for installation, 710
clients, setup, 727-729
configuration, 711-714
SWAT, 714-723
domain master, 721
encrypt passwords setting, 718
file sharing, netatalk, 942
files, smb.conf, editing, 723-726
global settings, SWAT, 716-722
guest account setting, 718-719
hosts allow setting, 719
hosts deny setting, 719
interfaces setting, 716
local master, 721
Mac OS X and, 926
netbios alias setting, 716
netbios name setting, 716
obey pam restrictions setting, 718
packages, listing, 710
pam password change setting, 718
passwd chat setting, 718
passwd program setting, 718
passwords, 711
encrypted, 712
Mac OS X and, 931
permissions, testing, 726
preferred master, 721
printers
shared, configuration, 689-691
SMB clients, 690
realm settings, 716
security, 711
security setting, 717
server string setting, 716
servers
Mac OS X and, 929-931
troubleshooting, 729-731
shared directories
status checking, 726
SWAT, 722-723
using from Linux, 727-728
using from Windows, 728-729
sharing, 713
starting, 726
unix password sync setting, 718
update encrypted setting, 718
username, 713
username map setting, 718
users
adding, 725
guest account, 713
guest user account, 711
smb.conf file, 725
workgroup settings, 716
Samba window, Server Settings, 364
SANE (Scanner Access Now Easy), 252-253
/sbin directory, 155, 366
scanners, SANE (Scanner Access Now Easy), 252-253
scheduling
kernel and, 954
system tasks
at command, 471
at.allow, 470
at.deny, 470
atq command, 472
atrm, 472
batch command, 472-473
cron command, 473-476
cron files, 475-476
crontab, 475
scheduled jobs, 472-476
scheduled jobs deletion, 472
scheduled jobs submission, 471
scheduled jobs view, 472
when jobs run, 470-471
schemas, LDAP, 827
scp command, 355, 569-571
screen captures, GIMP, 251
Screen section, xorg.conf file, 127
screensaver, 85, 121
Screensaver, GNOME preferences, 101
scripts
Navigator (Mozilla), 321
netatalk, atalk (startup), 934
run-level
run level determination, 469
shut down run levels, 469
run-level, system startup/shutdown, 459-462
adding, 466
behavior changes, 464
removing, 465-466
reorganization, 465-466
xinetd, 467
shell scripts, 441
arithmetic, 445
backup example, 453
case command, 448-449
command-line arguments and, 442
debugging, 442
executing, 442
for do loop, 449-450
if then statements, 446-448
overview, 441
telephone list example, 453
until do loops, 450
variables, 443
while do loops, 450
startup, quota package, 434-435
system startup/shutdown, 462-464
searches
Firefox (Mozilla), 329
grep, 451
htdig.conf file, 815
Konqueror File Manager, 112
LDAP, 838
vi text editor, 167
seaudit, SELinux, 964
secondary (slave) name server, DNS, 910
SECONDS environment variable, 148
security
attacks
DDOS (Distributed Denial of Service), 514, 518-522
DOS (Denial of Service), 514-518
intrusion, 579, 580
intrusion attacks, 523-528
intrustion attacks, 515
log file intrusions, 540, 543-546
log file monitoring, 546-555
encryption
private-key cryptography, 559
public-key cryptography, 559
SSH, 569-571
SSL (secure sockets layer), 560-568
symmetric crypography, 559
technology exportation, 568
Firefox (Mozilla), 329
firewalls, 528-540
hackers/cracker comparison, 513-514
NSA (National Security Agency), 962
passwords, 555
encrypted, 557
selection tips, 555-556
shadow password file, 556-558
PortSentry, 571
as is use, 573
configuration, 573-578
downloading, 572
installation, 572
modes, 572
testing, 578-579
tracking intrusions, 579-580
remote X applications, 205
Samba, 711
Samba global settings options, 717-719
scriptkiddies, 514
server-info page (Apache Web server), 820-821
servers, 907
firewalls, 908
logs, 908
system files, 908
updates, 909
server-status page (Apache Web server), 820-821
Transport Layer Security, LDAP, 837
volumes (netatalk)
directory-level, 939-942
file-level, 939-942
host-level, 938
user-level, 938
security enhancement, SELinux, 962-963
Security Level Configuration window (SELinux), 967
Security Level window, administration and, 365
security option, Samba, 717
security services, networks, 1029
proxy/caching server, 1029
system logging, 1029
VPNs, 1029
Security Violations, Log Sentry, 547
sed (Stream Editor) command, bash shell, 452
seinfo, SELinux, 964
self-signed certificates, SSL, 563-568
SELinux (Security Enhanced Linux), 16, 961
enabling, 965-966
Fedora Core 3 and, 964-965
libselinux, 965
policies, 963
changing, 969-970
enforcing, 963
permissions, 961
permissive, 963
policycoreutils, 965
roles, 962
seaudit, 964
Security Level Configuration window, 967
seinfo, 964
selinux-doc, 965
selinux-policy-strict, 965
selinux-policy-strict-sources, 965
selinux-policy-targeted, 965
selinux-policy-targeted-sources, 965
sepcut, 964
SePCuT (SELinux Policy Customization Tool), 969
sesearch, 964
setools, 965
seuser, 964
seuseradd, 964
seuserdel, 964
seusermod, 964
status checking, 966-968
system-config-securitylevel, 964
types, 962
users, 963
Web sites, 970
selinux-doc, SELinux, 965
selinux-policy-strict, SELinux, 965
selinux-policy-strict-sources, SELinux, 965
selinux-policy-targeted, SELinux, 965
selinux-policy-targeted-sources, SELinux, 965
semicolon (;), sequential commands, 144
sending e-mail messages
all users, 438-439
Evolution, 334-335
Mozilla Mail client, 337
sendmail
Mac OS X and, 926
mailbombing attack proctection, 516-517
SePCuT (SELinux Policy Customization Tool), 969
sepcut, SELinux, 964
sequential access, magnetic tape backups, 485
sequential commands, 144
server name, httpd.conf (Apache Web server) configuration, 791
server processes, httpd.conf file, 782
server root directory, httpd.conf global environment, 781
server settings, KDE versus GNOME, 82
Server Settings window, administration and, 364
server string option, Samba, 716
server-info page (Apache Web server), 818
security, 820-821
ServerLayout section, xorg.conf file, 127
servers
AppleTalk
Linux configuration, 931-945
settings, netatalk and, 935-936
configuration, 907
FTP server, 907
mail servers, 907
networking, 906-907
Web servers, 907
CUPS, administration, 683-684
DHCP
setup, 842-846, 850-851
starting, 850-851
dhcpd.conf file options, 847
DNS servers, 905
status, checking, 922-923
e-mail servers, 1023
file server, 1021
FTP servers, 1021
Netatalk server, 1022
Samba server, 1021
FTP, 763
hosting services and, 900
information servers, 1025
DHCP, 1026
DNS, 1027
LDAP, 1026
NIS (Network Information System), 1026
RARP, 1027
install servers, 45
disk images and, 46
files and, 45-46
FTP server and, 47
hard disk and, 47
NFS server and, 46
Web server and, 47
installation and, 32
hardware and, 27
kernel and performance, 956
login servers, 1022
MySQL
configuration, 866-874
starting, 874
status, 875-876
name servers, 910, 913-914
netatalk
settings configuration, 933
setup, 933-937
network administration, 1024
Arpwatch server, 1025
NTP (Network Time Protocol) server, 1024
portmap server, 1024
SNMP (Simple Network Management Protocol), 1025
SWAT (Samba Web Administration Tool), 1025
network servers, 9
news servers, 1023
NFS, access from Macintosh, 945-948
NIS
Fedora as master server, 857-861
Fedora as slave server, setup, 861
OpenLDAP
configuration (slapd.conf), 829-831
package installation, 829
print servers
configuration, 688-691
CUPS, 1024
proxy/caching server, 1029
public, connecting, 901-906
remote execution servers, 1027
finger server, 1028
remote user identification, 1029
talk server, 1028
write-to-all server, 1029
Samba
Mac OS X and, 929-931
troubleshooting, 729-731
security, 907
firewalls, 908
logs, 908
system files, 908
updates, 909
VPNs (virtual private networks), 1029
Web server, 1020
Web servers. See Web servers
server-status page (Apache Web server), 819-820
security, 820-821
Servertec iServer 1.1 Web server, 776
Service Configuration window, run-level scripts and, 465
services, amanda services, 507-508
services configuration file, /etc directory, 369
Services window, Server Settings, 364
sesearch, SELinux, 964
Set Root Password, installation and, 23
setkey command, VPNs, IPsec setup, 656
setools, SELinux, 965
seuser, SELinux, 964
seuseradd, SELinux, 964
seuserdel, SELinux, 964
seusermod, SELinux, 964
sftp command, 569-571
SGML (Standard Generalized Markup Language), 241
DocBooks and, 241-244
shadow configuration file, /etc directory, 369
shadow password file, 556-558
shared directories
netatalk, 932
Samba
mounting in Linux, 727
status check, 726
using from Linux, 727-728
using from Windows, 728-729
SWAT, 722-723
sharing
file systems, NFS, 696-709
files, netatalk and Samba, 942
printers, netatalk, 934, 943
Samba, 713
volumes
netatalk, 932-937
sharing files, NIS and, 852-853
shell
arguments, 135
bash shell, 134
external programs, 451-452
C Shell, 134
command line, editing, 138-140
commands, 136
aliases, 137
built-in, 137
file system, 137
functions, 137
rerunning, 138-143
reserved words, 137
type, 138
configuration, 151-154
~/.bash logout file, 152
~/.bash profile file, 151
~/.bashrc file, 151
aliases, 154
environment variables, 153-154
/etc/bashrc file, 151
/etc/profile file, 151
prompt, 152-153
directories, 131-132
dot (.) files, 132
environment variables, 135, 146-149
BASH, 146
BASH_EUID, 146
BASH_VERSION, 146
FCEDIT, 147
HISTCMD, 147
HISTFILE, 147
HISTFILESIZE, 147
HOME, 147
HOSTTYPE, 147
MAIL, 147
OLDPWD, 147
OSTTYPE, 147
PATH, 147
PPID, 147
PROMPT_COMMAND, 147
PS1, 147
PWD, 147
RANDOM, 147
SECONDS, 148
SHLVL, 148
TMOUT, 148
UID, 148
exiting, 133
Help, 136
help command, 136
--help command, 136
history, 138
Korn Shell, 134
login sessions, 130-131
man command, 136
metacharacters, 135, 158
file-matching, 158-160
file-redirection, 160
Nautilus (GNOME), 90
operators, 158
options, 134
PATH command, 136
permissions, 131, 132
printing from, 245
prompt, 129, 152-153
Terminal window and, 129
user defaults, configuration, 422, 423
variables, special variables, 443
working directory, 131
shell scripts, 441
arguments, filename, 442
arithmetic, 445
backup example, 453
case command, 448-449
command-line arguments and, 442
comments, 442
debugging, 442
executing, 442
if then statements, 446-448
interpreter, name, 442
loops
for do, 449-450
until do, 450
while do, 450
overview, 441
system initialization, 441
telephone list example, 453
variables, 443
shell variables, 443
shells configuration file, /etc directory, 369
SHLVL environment variable, 148
shutdown, GNOME desktop, 86
Side Pane option, 83
sidebar, Nautilus, 98
signatures, user directories (httpd.conf file), 801
slapd.conf file, 829-831
slave server names, Fedora as NIS client, 854
Smart Browsing option, Navigator (Mozilla), 320
SMB (Server Message Block) protocol, 709
SMB daemon, starting, 726
SMB protocol, 693. See also Samba
smb.conf file
editing, 723-726
Samba, 689-690
users, adding, 725
smbstatus command, 726
smurfing attacks (DOS), 517-518
.snd files, Sox utility, 293
SNMP (Simple Network Management Protocol), 1025
enabling, 657
soa record, /etc/named.conf file, 919-920
soft mounting, NFS file systems, 706
software
alternatives
mail, 401-402
printing, 401-402
e-mail readers, 314
free, 19
installation
Navigator (Mozilla), 321
wireless networks, 603
up2date facility, 403-409
Sony digital cameras as storage device, 306
sorting databases, MySQL, 890
sound file formats, SoX utility support, 292-294
Soundcard Detection window, administration and, 365
Soundcards, 279-281
configuration, 281-282
full-duplex support, 280
input/output ports, 280
internal CD audio, 280
joystick/MIDI, 280
line-in, 280
line-out, 280
microphone, 280
playback and, 280
recording and, 280
source code
HTML, 316-318
kernel, 952
package installation from, 195-198
source directory, package installation, 196
SourceForge Web site, application download, 176
SoX, audio file conversion tool, 292, 294-295
spam relaying attacks (DOS), 517
special variables, shells, 443
.sph files, Sox utility, 293
spreadsheets
Konqueror, 113
OpenOffice.org Calc, 220
StarOffice Calc, 222
SQL (structured query language), 865
Squid, 656
debugging
/etc/squid/squid.conf file, 664
log files and, 664-665
/etc/squid/squid.conf file, 658-660
FTP proxy services, 656
gopher proxy services, 656
HTTP proxy services, 656
log files, debugging and, 664-665
SMMP, enabling, 657
top command, 665
squid daemon, starting, 657-658
squid.conf file. See /etc/squid/squid.conf file
squirrelmail.conf file, Apache Web server, 815
SSH (Secure Shell) package, 569
remote login/execution, 354-355
remote X applications, 205-206
scp command, 569-571
sftp command, 569-571
ssh command, 569-571
starting, 569
ssh command, 569-571
ssh service
no-password login setup, 482
rsync command and backups, 481-482
SSL (secure sockets layer), 560
certificates, 560-562
requests, 564-566
self-signed, 567-568
third-party signers, 562-564
star topology, LANs, 586
StarOffice, 222
StarOffice Base, 223
StarOffice Calc, 222
StarOffice Draw, 223
StarOffice Impress, 222
StarOffice Writer, 222
startup scripts
overview, 462-464
quota package, 434-435
static IP addresses, 611, 902
Stealth mode, PortSentry, 572
storage, digital cameras as, 306
strict policies, SELinux, 961
string data types, MySQL, 885-887
strings, background processes, 151
striping, RAID disks, 392
Stronghold 4 Web server, 776
stylesheets, Konqueror, 116
su command (superuser), 360-361
subcomponents, httpd.conf global environment, 780
subfolders, 83
subscribing to newsgroups, Mozilla, 343
subtree checking, NFS file sharing and, 697
sudo, system administration and, 373-374
sudoers configuration file, /etc directory, 369
.sunau files, Sox utility, 293
super-server. See xinetd
superuser, X Window System, 362
superuser (su command), 360-361
suversion.conf file, Apache Web server, 815
swap file system, 383
SWAT (Samba Web Administration Tool), 1025
configuration, 714-723
global settings, 716
base options, 716
browse options, 720-721
logging options, 719
printing options, 720
security options, 717-719
tuning options, 719
WINS options, 721-722
switches, LANs, 589
switching desktop environments, 104
Sylpheed mail client, 314
symmetric cryptography, 559
/sys directory, 156
kernel and, 953
syslog.conf configuration file, /etc directory, 369
syslogd service, intrusion attacks and, 543, 544
system activity, process checking, 132
system administration
Add/Remove Applications window, 364
administrative logins, 372
Authentication window, 364
commands, 366-367
configuration files, 367-371
$HOME directory, 367
/etc directory, 367-371
/etc/alternatives directory, 370
/etc/amanda directory, 370
/etc/cipe directory, 370
/etc/cron* directory, 370
/etc/cups directory, 370
/etc/default directory, 370
/etc/httpd directory, 370
/etc/init.d directory, 370
/etc/mail directory, 370
/etc/pcmcia directory, 370
/etc/postfix directory, 370
/etc/ppp directory, 370
/etc/rc?.d directory, 370
/etc/security directory, 371
/etc/skel directory, 371
/etc/squid directory, 371
/etc/sysconfdirectory, 371
/etc/uucp directory, 371
/etc/vsftpd directory, 371
/etc/X11 directory, 369
/etc/xinetd.d directory, 371
Date & Time window, 364
Disk Management window, 364
disk space management, 379-382
Display window, 364
Fedora, 374
file system management, 379-382
creating, 388-389
fstab file, 384-385
mount command, 385-388
mounting systems, 382-388
supported systems, 382
umount command, 388
graphical tools, 363-366
hard disks
adding, 389-392
disk usage, checking, 395-396
RAID disks, 392-394
system space, checking, 394-395
Hardware Browser window, 364
hardware configuration, kudzu, 375-376
Internet Configuration Wizard, 364
Keyboard window, 364
Kickstart, 364
Language window, 364
log files, 371
Login screen, 365
module configuration, 376
availability, 376-377
listing loaded, 377-378
loading, 378-379
removing, 379
mouse, 365
Network Device Control window, 365
Network window, 365
performance monitoring, 396
computer usage, 396-397
CPU usage, 397
laptop power usage, 398-401
Printing Manager window, 365
Red Hat Network window, 365
Root Password window, 365
Security Level window, 365
Server Settings window, 364
software alternatives
mail, 401-402
printing, 401-402
Soundcard Detection window, 365
su command (superuser), 360-361
sudo, 373-374
System Logs window, 365
System Monitor window, 365
Task Scheduler window, 365
Users & Groups window, 365
system administrator, 359
Macintosh users and, 925
root user, 360
system config, tools, 16-17
system crash, recovery, 500
system files, server security, 908
system initialization
boot loader startup, 454
/etc/inittab file, 455
format, 456-457
line breakdown, 457-459
hardware boot, 454
init, 454
kernel boot, 454
system initialization shell scripts, 441
system logging, 1029
System Logs window, administration and, 365
System Monitor, computer usage monitoring, 396-397
System Monitor window, administration and, 365
system performance, Fedora system administration, 375
system profiles, setting, 423-424
system services, operating systems and, 6
system settings
GNOME desktop, 86
KDE versus GNOME, 82
system startup/shutdown
run-level scripts, 459-462
adding, 466
behavior changes, 464
removing, 465-466
reorganization, 465-466
xinetd, 467
scripts, 462-464
system tasks
at command
scheduled jobs submission, 471
at.allow and, 470
at.deny and, 470
atq command
scheduled jobs view, 472
atrm command
scheduled jobs deletion, 472
batch command
scheduled jobs, 472-473
cron command, 473-476
cron files, 475-476
crontab, 475
when jobs run, 470-471
system tools, KDE versus GNOME, 82
System Tools menu, GNOME desktop, 86
system-config-securitylevel, SELinux, 964
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