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service.switch file 566

/etc/services file 189, 271, 514, 519, 825–826

setgid bit 69, 72

setkey 297

setrlimit 767

setuid bit 69, 72

setuid execution 38

security issues 658–659

shell scripts 658

sh 2, 81, 88

/etc/shadow file 79, 82–84, 86, 514, 655–658

shadow passwords 78–79, 82–84, 656–657

share 493–494

shareall 493

shared logins 780

sharetab file 493

sharing a filesystem see NFS

/etc/shells file 81, 91, 553

shells 81, 657

.shosts file 673

shutdown 34–35, 208, 215

shutdownlog file 208

shutting down 33–36

signals 38

see also individual signal names

caught, blocked, or ignored 49

common signals 50–51

overview 48–51

sending 51

table of 49

single-user mode 13, 15–16, 22–24

FreeBSD 24

HP-UX 23

single-user mode continued

Red Hat 15, 23–24

Solaris 22–23

skel directory 87

Slackware 30

slapd 534, 561

slarpd 534

SLIP protocol 291

SMART_HOST macro 584, 592

SmartList 558, 560

SMB protocol 770–773

smb.conf file 771

smbd 770

smbstatus 773

smbtar 187, 196, 775

smrsh 540, 586, 610

SMTP 537, 539, 617, 624, 676

smtpd 547

smtpfwdd 547

Sniffer Technologies 385

sniffit 809

snitches 819

SNMP 639–650

agents 642–646

basic data types 640

communities 642

free tools 646

HP-UX 29, 643–644

MIB-II 641

MIBs and OIDs 640

protocol operations 641

RMON MIB 642

security 642

Solaris 643

table of OIDs 641

traps 642

UCD implementation 645

snmpd 644–645, 831

snmpd.conf file 643–645

snmpdx 643

snmpget 646

snmpwalk 646

snmpXdmid 643

snoop 637–638

SOA records 438–440

socket 68

soft carrier 101–102

soft links 68–69

soft mounts 501

software

patents 813–814

piracy 792

recommended 808–809

SoftWindows 776

Solaris 3

SONET 383

source routing 296, 313, 319–320, 326, 333

Spafford, Gene 668

spam 535–536, 548, 590, 595–607, 792–793

blacklists 601–602

danger of replying 596, 603

general policy 603–604

open relays 597–599

Postfix features 621–622

sendmail features 595–603

tracing 604–607

SpamCop 607

spdadd 297

spontaneous processes 14–15

spooler 704

spop 540

Squid 694–696, 792, 809

srm.conf file 690

SRP protocol 674

SSH 516, 660, 672–674, 808, 832

for Windows 773–774

sshd_config file 673

SSL (Secure Socket Layer) 686

stackers 173–174

/stand/system file 230–231

standard I/O channels 47

standards 817–819

StarOffice 776

startup files 87–88

startup scripts 13, 24–33

FreeBSD 32–33

HP-UX 28–29

Red Hat 30–32

Solaris 28

startx 88

statd 490, 829

static electricity 746–747

static routes 284, 363–364

static-routes file 323

STD documents 264

sticky bit 69

STOP signal 50, 52, 58, 767

stty 102, 111–112

stub zones 425, 456–457

su 40–41, 215

submission agents 537, 540–541

subnetting 272–275

sudo 41–43, 79, 657, 784, 808

sudo.log file 208

SUG (Sun Users Group) 815

sulog file 208

Sun Microsystems 3

SunOS 3

superblocks 133

SuperDisks 170, 175

superuser privileges 39–43

SUS specification 818

/dev/swap file 44

swap 136, 142, 761–762

swap partitions 131

swapinfo 148

swapon 135–136, 147–148, 152, 156, 761, 764

swapper 14, 827

swapping 136, 760, 764

swatch 222–223

switches (Ethernet) 375, 377–379, 636

symbolic links 68–69

sync 35, 133, 828

syncer 828

/sys directory 234

/etc/sysconfig directory 31

sysconfig directories 323

sysctl 333

sysdef 229

sysinstall 153

syslog 210–222

actions 213

configuration dump 220

configuration examples 215–218

configuring 211–215

debugging 219–220

design hints 218

facilities 211–213

forwarding hierarchy 218

FreeBSD 214–215

Red Hat 213–214

remote logging 660

severity levels 211–213

table of clients 219

time stamps 212

using from Perl 220–222

syslog 220–221

syslog.conf file 210–217, 617

syslogd 833

/etc/system file 228–229

system administration

against your will 10

checklists 779–780

disaster planning 784–787

essential tasks 8–9

hiring and firing 797–799

Internet resources 9–10

system administration continued

orgs and conferences 814–816

personality