UNIX and Linux System Administration Handbook
4th Edition
Published on 22. July 2010
Book
Paperback/Softback
1344 pages
978-0-13-148005-6 (ISBN)
Description
"As an author, editor, and publisher, I never paid much attention to the competition-except in a few cases. This is one of those cases. The UNIX System Administration Handbook is one of the few books we ever measured ourselves against."
-From the Foreword by Tim O'Reilly, founder of O'Reilly Media
"This book is fun and functional as a desktop reference. If you use UNIX and Linux systems, you need this book in your short-reach library. It covers a bit of the systems' history but doesn't bloviate. It's just straightfoward information delivered in colorful and memorable fashion."
-Jason A. Nunnelley
"This is a comprehensive guide to the care and feeding of UNIX and Linux systems. The authors present the facts along with seasoned advice and real-world examples. Their perspective on the variations among systems is valuable for anyone who runs a heterogeneous computing facility."
-Pat Parseghian
The twentieth anniversary edition of the world's best-selling UNIX system administration book has been made even better by adding coverage of the leading Linux distributions: Ubuntu, openSUSE, and RHEL.
This book approaches system administration in a practical way and is an invaluable reference for both new administrators and experienced professionals. It details best practices for every facet of system administration, including storage management, network design and administration, email, web hosting, scripting, software configuration management, performance analysis, Windows interoperability, virtualization, DNS, security, management of IT service organizations, and much more. UNIX (R) and Linux (R) System Administration Handbook, Fourth Edition, reflects the current versions of these operating systems:
Ubuntu (R) Linux
openSUSE (R) Linux
Red Hat (R) Enterprise Linux (R)
Oracle America (R) Solaris (TM) (formerly Sun Solaris)
HP HP-UX (R)
IBM AIX (R)
-From the Foreword by Tim O'Reilly, founder of O'Reilly Media
"This book is fun and functional as a desktop reference. If you use UNIX and Linux systems, you need this book in your short-reach library. It covers a bit of the systems' history but doesn't bloviate. It's just straightfoward information delivered in colorful and memorable fashion."
-Jason A. Nunnelley
"This is a comprehensive guide to the care and feeding of UNIX and Linux systems. The authors present the facts along with seasoned advice and real-world examples. Their perspective on the variations among systems is valuable for anyone who runs a heterogeneous computing facility."
-Pat Parseghian
The twentieth anniversary edition of the world's best-selling UNIX system administration book has been made even better by adding coverage of the leading Linux distributions: Ubuntu, openSUSE, and RHEL.
This book approaches system administration in a practical way and is an invaluable reference for both new administrators and experienced professionals. It details best practices for every facet of system administration, including storage management, network design and administration, email, web hosting, scripting, software configuration management, performance analysis, Windows interoperability, virtualization, DNS, security, management of IT service organizations, and much more. UNIX (R) and Linux (R) System Administration Handbook, Fourth Edition, reflects the current versions of these operating systems:
Ubuntu (R) Linux
openSUSE (R) Linux
Red Hat (R) Enterprise Linux (R)
Oracle America (R) Solaris (TM) (formerly Sun Solaris)
HP HP-UX (R)
IBM AIX (R)
More details
Edition
4th edition
Language
English
Place of publication
Upper Saddle River
United States
Publishing group
Pearson Education (US)
Target group
College/higher education
Dimensions
Height: 233 mm
Width: 180 mm
Thickness: 42 mm
Weight
1644 gr
ISBN-13
978-0-13-148005-6 (9780131480056)
Schweitzer Classification
Other editions
New editions
Evi Nemeth | Garth Snyder | Trent R. Hein
UNIX and Linux System Administration Handbook
Book
08/2017
5th Edition
Prentice Hall Press
€70.49
Available immediately
Previous edition
Evi Nemeth | Garth Snyder | Trent R. Hein
Linux Administration Handbook
Book
11/2006
2nd Edition
Prentice Hall
€43.32
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Persons
Evi Nemeth has retired from the Computer Science faculty at the University of Colorado. She is currently exploring the Pacific on her 40-foot sailboat named Wonderland. Garth Snyder has worked at NeXT and Sun and holds a BS in Engineering from Swarthmore College and an MD and an MBA from the University of Rochester. Trent R. Hein is the co-founder of Applied Trust, a company that provides IT infrastructure consulting services. Trent holds a BS in Computer Science from the University of Colorado. Ben Whaley is the Director of Enterprise Architecture at Applied Trust. Ben earned a BS in Computer Science from the University of Colorado. He is an expert in storage management, virtualization, and web infrastructure.
Content
Foreword xlii
Preface xliv
Acknowledgments xlvi
Section One: Basic Administration
Chapter 1: Where to Start 3
Essential duties of the system administrator 4
Suggested background 6
Friction between UNIX and Linux 7
Linux distributions 9
Example systems used in this book 10
System-specific administration tools 13
Notation and typographical conventions 13
Units 14
Man pages and other on-line documentation 16
Other authoritative documentation 18
Other sources of information 20
Ways to find and install software 21
System administration under duress 26
Recommended reading 27
Exercises 28
Chapter 2: Scripting and the Shell 29
Shell basics 30
bash scripting 37
Regular expressions 48
Perl programming 54
Python scripting 66
Scripting best practices 73
Recommended reading 74
Exercises 76
Chapter 3: Booting and Shutting Down 77
Bootstrapping 78
Booting PCs 82
GRUB: The GRand Unified Boot loader 83
Booting to single-user mode 86
Working with startup scripts 87
Booting Solaris 97
Rebooting and shutting down 100
Exercises 102
Chapter 4: Access Control and Rootly Powers 103
Traditional UNIX access control 104
Modern access control 106
Real-world access control 110
Pseudo-users other than root 118
Exercises 119
Chapter 5: Controlling Processes 120
Components of a process 120
The life cycle of a process 123
Signals 124
kill: send signals 127
Process states 128
nice and renice: influence scheduling priority 129
ps: monitor processes 130
Dynamic monitoring with top, prstat, and topas 133
The /proc filesystem 135
strace, truss, and tusc: trace signals and system calls 136
Runaway processes 138
Recommended reading 139
Exercises 139
Chapter 6: The Filesystem 140
Pathnames 142
Filesystem mounting and unmounting 143
The organization of the file tree 145
File types 147
File attributes 152
Access control lists 159
Exercises 173
Chapter 7: Adding New Users 174
The /etc/passwd file 176
The /etc/shadow and /etc/security/passwd files 183
The /etc/group file 186
Adding users: the basic steps 187
Adding users with useradd 191
Adding users in bulk with newusers (Linux) 197
Removing users 198
Disabling logins 200
Managing users with system-specific tools 201
Reducing risk with PAM 201
Centralizing account management 201
Recommended reading 204
Exercises 205
Chapter 8: Storage 206
I just want to add a disk! 207
Storage hardware 209
Storage hardware interfaces 213
Peeling the onion: the software side of storage 220
Attachment and low-level management of drives 223
Disk partitioning 231
RAID: redundant arrays of inexpensive disks 237
Logical volume management 246
Filesystems 254
ZFS: all your storage problems solved 264
Storage area networking 274
Exercises 281
Chapter 9: Periodic Processes 283
cron: schedule commands 283
The format of crontab files 284
Crontab management 286
Linux and Vixie-cron extensions 287
Some common uses for cron 288
Exercises 291
Chapter 10: Backups 292
Motherhood and apple pie 293
Backup devices and media 299
Saving space and time with incremental backups 305
Setting up a backup regime with dump 307
Dumping and restoring for upgrades 314
Using other archiving programs 315
Using multiple files on a single tape 317
Bacula 318
Commercial backup products 335
Recommended reading 337
Exercises 337
Chapter 11: Syslog and Log Files 340
Finding log files 341
Syslog: the system event logger 344
AIX logging and error handling 353
logrotate: manage log files 356
Condensing log files to useful information 358
Logging policies 359
Exercises 361
Chapter 12: Software Installation and Management 362
Installing Linux and OpenSolaris 363
Installing Solaris 370
Installing HP-UX 377
Installing AIX with the Network Installation Manager 380
Managing packages 381
Managing Linux packages 382
Using high-level Linux package management systems 384
Managing packages for UNIX 393
Revision control 397
Software localization and configuration 404
Using configuration management tools 408
Sharing software over NFS 411
Recommended reading 413
Exercises 414
Chapter 13: Drivers and the Kernel 415
Kernel adaptation 416
Drivers and device files 417
Linux kernel configuration 421
Solaris kernel configuration 427
HP-UX kernel configuration 431
Management of the AIX kernel 432
Loadable kernel modules 434
Linux udev for fun and profit 437
Recommended reading 443
Exercises 444
Section Two: Networking
Chapter 14: TCP/IP Networking 447
TCP/IP and its relationship to the Internet 447
Networking road map 450
Packet addressing 454
IP addresses: the gory details 457
Routing 465
ARP: the Address Resolution Protocol 468
DHCP: the Dynamic Host Configuration Protocol 469
Security issues 472
PPP: the Point-to-Point Protocol 476
Basic network configuration 476
System-specific network configuration 484
Linux networking 484
Solaris networking 494
HP-UX networking 501
AIX networking 506
Recommended reading 508
Exercises 509
Chapter 15: Routing 511
Packet forwarding: a closer look 512
Routing daemons and routing protocols 515
Protocols on parade 518
Routing strategy selection criteria 521
Routing daemons 522
Cisco routers 525
Recommended reading 528
Exercises 530
Chapter 16: Network Hardware 531
Ethernet: the Swiss Army knife of networking 532
Wireless: ethernet for nomads 541
DSL and cable modems: the last mile 543
Network testing and debugging 544
Building wiring 545
Network design issues 547
Management issues 549
Recommended vendors 550
Recommended reading 550
Exercises 551
Chapter 17: DNS: The Domain Name System 552
Who needs DNS? 554
How DNS works 555
DNS for the impatient 558
Name servers 563
The DNS namespace 566
Designing your DNS environment 568
What's new in DNS 572
The DNS database 574
The BIND software 597
BIND configuration examples 618
The NSD/Unbound software 625
Updating zone files 638
Security issues 642
Microsoft and DNS 667
Testing and debugging 667
Vendor specifics 681
Recommended reading 686
Exercises 688
Chapter 18: The Network File System 690
Introduction to network file services 690
The NFS approach 692
Server-side NFS 698
Client-side NFS 706
Identity mapping for NFS version 4 709
nfsstat: dump NFS statistics 710
Dedicated NFS file servers 711
Automatic mounting 711
Recommended reading 717
Exercises 718
Chapter 19: Sharing System Files 719
What to share 720
Copying files around 721
LDAP: the Lightweight Directory Access Protocol 728
NIS: the Network Information Service 736
Prioritizing sources of administrative information 739
Recommended reading 741
Exercises 741
Chapter 20: Electronic Mail 742
Mail systems 744
The anatomy of a mail message 748
The SMTP protocol 750
Mail system design 753
Mail aliases 756
Content scanning: spam and malware 761
Email configuration 774
sendmail 775
sendmail configuration 778
sendmail configuration primitives 782
Security and sendmail 795
sendmail performance 802
sendmail testing and debugging 805
Exim 807
Postfix 828
DKIM Configuration 845
Integrated email solutions 853
Recommended reading 854
Exercises 855
Chapter 21: Network Management and Debugging 859
Network troubleshooting 860
ping: check to see if a host is alive 861
SmokePing: gather ping statistics over time 864
traceroute: trace IP packets 865
netstat: get network statistics 868
Inspection of live interface activity 873
Packet sniffers 874
The ICSI Netalyzr 878
Network management protocols 879
SNMP: the Simple Network Management Protocol 880
The NET-SNMP agent 883
Network management applications 884
NetFlow: connection-oriented monitoring 890
Recommended reading 893
Exercises 894
Chapter 22: Security 896
Is UNIX secure? 897
How security is compromised 898
Security tips and philosophy 901
Passwords and user accounts 906
PAM: cooking spray or authentication wonder? 908
Setuid programs 912
Effective use of chroot 913
Security power tools 914
Mandatory Access Control (MAC) 922
Cryptographic security tools 924
Firewalls 932
Linux firewall features 935
IPFilter for UNIX systems 939
Virtual private networks (VPNs) 942
Certifications and standards 944
Sources of security information 947
What to do when your site has been attacked 950
Recommended reading 952
Exercises 954
Chapter 23: Web Hosting 956
Web hosting basics 957
HTTP server installation 963
Virtual interfaces 967
The Secure Sockets Layer (SSL) 971
Caching and proxy servers 974
Scaling beyond your limits 977
Exercises 979
Section Three: Bunch O' Stuff
Chapter 24: Virtualization 983
Virtual vernacular 984
Benefits of virtualization 988
A practical approach 989
Virtualization with Linux 991
Solaris zones and containers 997
AIX workload partitions 1001
Integrity Virtual Machines in HP-UX 1003
VMware: an operating system in its own right 1005
Amazon Web Services 1005
Recommended reading 1010
Exercises 1010
Chapter 25: The X Window System 1011
The display manager 1013
Process for running an X application 1014
X server configuration 1019
X server troubleshooting and debugging 1026
A brief note on desktop environments 1028
Recommended reading 1030
Exercises 1031
Chapter 26: Printing 1032
Printing-system architecture 1033
CUPS printing 1034
Printing from desktop environments 1043
System V printing 1045
BSD and AIX printing 1054
What a long, strange trip it's been 1065
Common printing software 1067
Printer languages 1068
PPD files 1072
Paper sizes 1073
Printer practicalities 1075
Troubleshooting tips 1081
Recommended reading 1083
Exercises 1084
Chapter 27: Data Center Basics 1085
Data center reliability tiers 1086
Cooling 1087
Power 1091
Racks 1094
Tools 1095
Recommended reading 1095
Exercises 1096
Chapter 28: Green IT 1097
Green IT initiation 1098
The green IT eco-pyramid 1099
Green IT strategies: data center 1100
Green IT strategies: user workspace 1108
Green IT friends 1110
Exercises 1111
Chapter 29: Performance Analysis 1112
What you can do to improve performance 1114
Factors that affect performance 1115
How to analyze performance problems 1117
System performance checkup 1118
Help! My system just got really slow! 1131
Recommended reading 1133
Exercises 1134
Chapter 30: Cooperating with Windows 1135
Logging in to a UNIX system from Windows 1135
Accessing remote desktops 1136
Running Windows and Windows-like applications 1139
Using command-line tools with Windows 1140
Windows compliance with email and web standards 1141
Sharing files with Samba and CIFS 1142
Sharing printers with Samba 1149
Debugging Samba 1152
Active Directory authentication 1154
Recommended reading 1160
Exercises 1161
Chapter 31: Serial Devices and Terminals 1162
The RS-232C standard 1163
Alternative connectors 1165
Hard and soft carrier 1167
Hardware flow control 1168
Serial device files 1168
setserial: set serial port parameters under Linux 1169
Pseudo-terminals 1170
Configuration of terminals 1171
Special characters and the terminal driver 1177
stty: set terminal options 1178
tset: set options automatically 1178
Terminal unwedging 1179
Debugging a serial line 1180
Connecting to serial device consoles 1180
Exercises 1182
Chapter 32: Management, Policy, and Politics 1183
The purpose of IT 1184
The structure of an IT organization 1190
The help desk 1196
The enterprise architects 1197
The operations group 1199
Management 1206
Policies and procedures 1215
Disaster recovery 1217
Compliance: regulations and standards 1222
Legal issues 1226
Organizations, conferences, and other resources 1229
Recommended Reading 1231
Exercises 1231
Index 1233
A Brief History of System Administration 1264
In Defense of AIX 1274
Colophon 1277
About the Contributors 1278
About the Authors 1279
Preface xliv
Acknowledgments xlvi
Section One: Basic Administration
Chapter 1: Where to Start 3
Essential duties of the system administrator 4
Suggested background 6
Friction between UNIX and Linux 7
Linux distributions 9
Example systems used in this book 10
System-specific administration tools 13
Notation and typographical conventions 13
Units 14
Man pages and other on-line documentation 16
Other authoritative documentation 18
Other sources of information 20
Ways to find and install software 21
System administration under duress 26
Recommended reading 27
Exercises 28
Chapter 2: Scripting and the Shell 29
Shell basics 30
bash scripting 37
Regular expressions 48
Perl programming 54
Python scripting 66
Scripting best practices 73
Recommended reading 74
Exercises 76
Chapter 3: Booting and Shutting Down 77
Bootstrapping 78
Booting PCs 82
GRUB: The GRand Unified Boot loader 83
Booting to single-user mode 86
Working with startup scripts 87
Booting Solaris 97
Rebooting and shutting down 100
Exercises 102
Chapter 4: Access Control and Rootly Powers 103
Traditional UNIX access control 104
Modern access control 106
Real-world access control 110
Pseudo-users other than root 118
Exercises 119
Chapter 5: Controlling Processes 120
Components of a process 120
The life cycle of a process 123
Signals 124
kill: send signals 127
Process states 128
nice and renice: influence scheduling priority 129
ps: monitor processes 130
Dynamic monitoring with top, prstat, and topas 133
The /proc filesystem 135
strace, truss, and tusc: trace signals and system calls 136
Runaway processes 138
Recommended reading 139
Exercises 139
Chapter 6: The Filesystem 140
Pathnames 142
Filesystem mounting and unmounting 143
The organization of the file tree 145
File types 147
File attributes 152
Access control lists 159
Exercises 173
Chapter 7: Adding New Users 174
The /etc/passwd file 176
The /etc/shadow and /etc/security/passwd files 183
The /etc/group file 186
Adding users: the basic steps 187
Adding users with useradd 191
Adding users in bulk with newusers (Linux) 197
Removing users 198
Disabling logins 200
Managing users with system-specific tools 201
Reducing risk with PAM 201
Centralizing account management 201
Recommended reading 204
Exercises 205
Chapter 8: Storage 206
I just want to add a disk! 207
Storage hardware 209
Storage hardware interfaces 213
Peeling the onion: the software side of storage 220
Attachment and low-level management of drives 223
Disk partitioning 231
RAID: redundant arrays of inexpensive disks 237
Logical volume management 246
Filesystems 254
ZFS: all your storage problems solved 264
Storage area networking 274
Exercises 281
Chapter 9: Periodic Processes 283
cron: schedule commands 283
The format of crontab files 284
Crontab management 286
Linux and Vixie-cron extensions 287
Some common uses for cron 288
Exercises 291
Chapter 10: Backups 292
Motherhood and apple pie 293
Backup devices and media 299
Saving space and time with incremental backups 305
Setting up a backup regime with dump 307
Dumping and restoring for upgrades 314
Using other archiving programs 315
Using multiple files on a single tape 317
Bacula 318
Commercial backup products 335
Recommended reading 337
Exercises 337
Chapter 11: Syslog and Log Files 340
Finding log files 341
Syslog: the system event logger 344
AIX logging and error handling 353
logrotate: manage log files 356
Condensing log files to useful information 358
Logging policies 359
Exercises 361
Chapter 12: Software Installation and Management 362
Installing Linux and OpenSolaris 363
Installing Solaris 370
Installing HP-UX 377
Installing AIX with the Network Installation Manager 380
Managing packages 381
Managing Linux packages 382
Using high-level Linux package management systems 384
Managing packages for UNIX 393
Revision control 397
Software localization and configuration 404
Using configuration management tools 408
Sharing software over NFS 411
Recommended reading 413
Exercises 414
Chapter 13: Drivers and the Kernel 415
Kernel adaptation 416
Drivers and device files 417
Linux kernel configuration 421
Solaris kernel configuration 427
HP-UX kernel configuration 431
Management of the AIX kernel 432
Loadable kernel modules 434
Linux udev for fun and profit 437
Recommended reading 443
Exercises 444
Section Two: Networking
Chapter 14: TCP/IP Networking 447
TCP/IP and its relationship to the Internet 447
Networking road map 450
Packet addressing 454
IP addresses: the gory details 457
Routing 465
ARP: the Address Resolution Protocol 468
DHCP: the Dynamic Host Configuration Protocol 469
Security issues 472
PPP: the Point-to-Point Protocol 476
Basic network configuration 476
System-specific network configuration 484
Linux networking 484
Solaris networking 494
HP-UX networking 501
AIX networking 506
Recommended reading 508
Exercises 509
Chapter 15: Routing 511
Packet forwarding: a closer look 512
Routing daemons and routing protocols 515
Protocols on parade 518
Routing strategy selection criteria 521
Routing daemons 522
Cisco routers 525
Recommended reading 528
Exercises 530
Chapter 16: Network Hardware 531
Ethernet: the Swiss Army knife of networking 532
Wireless: ethernet for nomads 541
DSL and cable modems: the last mile 543
Network testing and debugging 544
Building wiring 545
Network design issues 547
Management issues 549
Recommended vendors 550
Recommended reading 550
Exercises 551
Chapter 17: DNS: The Domain Name System 552
Who needs DNS? 554
How DNS works 555
DNS for the impatient 558
Name servers 563
The DNS namespace 566
Designing your DNS environment 568
What's new in DNS 572
The DNS database 574
The BIND software 597
BIND configuration examples 618
The NSD/Unbound software 625
Updating zone files 638
Security issues 642
Microsoft and DNS 667
Testing and debugging 667
Vendor specifics 681
Recommended reading 686
Exercises 688
Chapter 18: The Network File System 690
Introduction to network file services 690
The NFS approach 692
Server-side NFS 698
Client-side NFS 706
Identity mapping for NFS version 4 709
nfsstat: dump NFS statistics 710
Dedicated NFS file servers 711
Automatic mounting 711
Recommended reading 717
Exercises 718
Chapter 19: Sharing System Files 719
What to share 720
Copying files around 721
LDAP: the Lightweight Directory Access Protocol 728
NIS: the Network Information Service 736
Prioritizing sources of administrative information 739
Recommended reading 741
Exercises 741
Chapter 20: Electronic Mail 742
Mail systems 744
The anatomy of a mail message 748
The SMTP protocol 750
Mail system design 753
Mail aliases 756
Content scanning: spam and malware 761
Email configuration 774
sendmail 775
sendmail configuration 778
sendmail configuration primitives 782
Security and sendmail 795
sendmail performance 802
sendmail testing and debugging 805
Exim 807
Postfix 828
DKIM Configuration 845
Integrated email solutions 853
Recommended reading 854
Exercises 855
Chapter 21: Network Management and Debugging 859
Network troubleshooting 860
ping: check to see if a host is alive 861
SmokePing: gather ping statistics over time 864
traceroute: trace IP packets 865
netstat: get network statistics 868
Inspection of live interface activity 873
Packet sniffers 874
The ICSI Netalyzr 878
Network management protocols 879
SNMP: the Simple Network Management Protocol 880
The NET-SNMP agent 883
Network management applications 884
NetFlow: connection-oriented monitoring 890
Recommended reading 893
Exercises 894
Chapter 22: Security 896
Is UNIX secure? 897
How security is compromised 898
Security tips and philosophy 901
Passwords and user accounts 906
PAM: cooking spray or authentication wonder? 908
Setuid programs 912
Effective use of chroot 913
Security power tools 914
Mandatory Access Control (MAC) 922
Cryptographic security tools 924
Firewalls 932
Linux firewall features 935
IPFilter for UNIX systems 939
Virtual private networks (VPNs) 942
Certifications and standards 944
Sources of security information 947
What to do when your site has been attacked 950
Recommended reading 952
Exercises 954
Chapter 23: Web Hosting 956
Web hosting basics 957
HTTP server installation 963
Virtual interfaces 967
The Secure Sockets Layer (SSL) 971
Caching and proxy servers 974
Scaling beyond your limits 977
Exercises 979
Section Three: Bunch O' Stuff
Chapter 24: Virtualization 983
Virtual vernacular 984
Benefits of virtualization 988
A practical approach 989
Virtualization with Linux 991
Solaris zones and containers 997
AIX workload partitions 1001
Integrity Virtual Machines in HP-UX 1003
VMware: an operating system in its own right 1005
Amazon Web Services 1005
Recommended reading 1010
Exercises 1010
Chapter 25: The X Window System 1011
The display manager 1013
Process for running an X application 1014
X server configuration 1019
X server troubleshooting and debugging 1026
A brief note on desktop environments 1028
Recommended reading 1030
Exercises 1031
Chapter 26: Printing 1032
Printing-system architecture 1033
CUPS printing 1034
Printing from desktop environments 1043
System V printing 1045
BSD and AIX printing 1054
What a long, strange trip it's been 1065
Common printing software 1067
Printer languages 1068
PPD files 1072
Paper sizes 1073
Printer practicalities 1075
Troubleshooting tips 1081
Recommended reading 1083
Exercises 1084
Chapter 27: Data Center Basics 1085
Data center reliability tiers 1086
Cooling 1087
Power 1091
Racks 1094
Tools 1095
Recommended reading 1095
Exercises 1096
Chapter 28: Green IT 1097
Green IT initiation 1098
The green IT eco-pyramid 1099
Green IT strategies: data center 1100
Green IT strategies: user workspace 1108
Green IT friends 1110
Exercises 1111
Chapter 29: Performance Analysis 1112
What you can do to improve performance 1114
Factors that affect performance 1115
How to analyze performance problems 1117
System performance checkup 1118
Help! My system just got really slow! 1131
Recommended reading 1133
Exercises 1134
Chapter 30: Cooperating with Windows 1135
Logging in to a UNIX system from Windows 1135
Accessing remote desktops 1136
Running Windows and Windows-like applications 1139
Using command-line tools with Windows 1140
Windows compliance with email and web standards 1141
Sharing files with Samba and CIFS 1142
Sharing printers with Samba 1149
Debugging Samba 1152
Active Directory authentication 1154
Recommended reading 1160
Exercises 1161
Chapter 31: Serial Devices and Terminals 1162
The RS-232C standard 1163
Alternative connectors 1165
Hard and soft carrier 1167
Hardware flow control 1168
Serial device files 1168
setserial: set serial port parameters under Linux 1169
Pseudo-terminals 1170
Configuration of terminals 1171
Special characters and the terminal driver 1177
stty: set terminal options 1178
tset: set options automatically 1178
Terminal unwedging 1179
Debugging a serial line 1180
Connecting to serial device consoles 1180
Exercises 1182
Chapter 32: Management, Policy, and Politics 1183
The purpose of IT 1184
The structure of an IT organization 1190
The help desk 1196
The enterprise architects 1197
The operations group 1199
Management 1206
Policies and procedures 1215
Disaster recovery 1217
Compliance: regulations and standards 1222
Legal issues 1226
Organizations, conferences, and other resources 1229
Recommended Reading 1231
Exercises 1231
Index 1233
A Brief History of System Administration 1264
In Defense of AIX 1274
Colophon 1277
About the Contributors 1278
About the Authors 1279