R

racoon command, VPNs, IPsec setup, 706

RAM, hardware and, 32

random access, CD drives , 549

.raw files, Sox utility, 335

RBAC (Role-Based Access Control), SELinux, 460

rc (run commands), 480

rcp command, 408

read list option, Samba, 771

realm option, Samba, 768

rebuilddb option, 210

rebuilding rpm database, 210

Red Hat Desktop system, 1042

Red Hat Enterprise Linux

choosing between, 15–17

Fedora Project and, 12–15

Red Hat Network, 1045–1046

referer format, HTTP logging (httpd.conf file), 856

reiserfs file system, 438

remote backups , 543–544

remote file copy, 408

remote internet, 365

remote login, telnet, 396–397

remote login/remote execution, 407

remote X system application, SSH and, 234–235

removable storage, 116

repquota command, 497

resident drivers, 431

restore command, interactive mode, 564

restoring backups, 562

entire file system, 563–564

files, 564–566

retrans=# option, NFS file systems mounting and, 758

retry =# option, NFS file systems mounting and, 758

RFCs (Request for Comments), LDAP and, 884

RHCA (Red Hat Certified Architect), 1044

RHCE (Red Hat Certified Engineer), 1044

RHCT (Red Hat Certified Technician), 1043

RHEL

certification, 1043

evaluation subscription, 1042

GFS (Global File System), 1047

hardware compatibility, 1043

HPC (High Performance Clusters), 1046

software, commercial, 1043

system adninistration, 1044

system selection tips, 1041–1042

training, 1043

RHEL AS systems, 1042

RHEL ES sytems, 1042

RHEL WS, 1041

RHEL4

2.6 kernel, 1040

applications, 1040

development tools, 1040

features, 1040–1041

GNOME desktop, 1040

KDE desktop, 1040

network servers, 1041

SELinux and, 1040

system administration tools, 1041

Rhythmbox audio player, 326

Rhythmbox CD player, 323, 327–329

ring topology, LANs, 637

rlogin command, 408

root, forgotten password, 79

/root directory, 414

/ (slash), 174

vsFTPd, 822

Root Password window, administration and, 420

root user , 414

enabling remote as local, NFS sharing and, 749

login, 93

/sbin directory, 421

shell prompt, 148

/usr/sbin directory, 421

routers

Internet, 684–685

LAN connection, 698

Linux as, 698–701

rpm, 210

rpm command, modes, 208

rpm database, rebuilding, 210

RPM packages, pax, 573

Rpmfind FTP site, application download, 193

RPMs

binary RPMs, 220

yum and, 199

rsh command, 408

rsize option, NFS file systems mounting and, 758

rsync command

backups and, 542–544

ssh and, 544

run-level scripts

run level determination, 532

shutdown run levels, 532

telinit command, 532