Autor                : Danesh, Arman    Das, Gautam    Samadrala, Ram Titel                : Special Edition Using Linux System Administration Dokumenttyp          : Autorenwerk       ISBN                 : 0789723522 Erscheinungsjahr     : 2000 Verlag               : QUE , Indianapolis, Indiana Standort             : 0100 (Praesenzbibliothek ; steht unter : DAN ) Signatur             : 2.2000A204 Archiviert am        : 21.9.2000 Neuerwerbungsregal   : von 26.9.2000 bis 2.10.2000 Inhaltsverzeichnis: Arman Danesh    Gautam Das    Ram Samadrala Special Edition Using Linux System Administration QUE , Indianapolis, Indiana , 2000 , 835 S. ISBN 0789723522 CONTENTS AT A GLANCE Introduction I Linux Apex Deployment and Installation 1 Issues in Linux Installation 7 2 Automated Installation 21 II General - System Administration 3 User and Group Administration   33 4 Booting Up and Shutting Down 53 5 Using xdm to Create an X Windows Applications 691   Server 71 6 Authenticating Users and Network Resources 3 7 Sheduling Tasks 103 8 Linux Process Management and Daemons 117 9 Installation and Using RAID 143 10 Back Up and Restore 157 11 Building the Linux Kernel - Kernel 193 12 Capacity Planning 213 III Network Management 13 Linux Network Configuration and TCP/IP 229 14 Printer and File Sharing with NFS and Samba 267 15 Routing with Linux 289 16 Linux Mail Services with sendmail 309 17 Fax Servers 343 IV Secirity and Stability 18 General Security 387 19 Linux and Firewalls 399 20 Log Management and Analysis 433 V The Internet and the Intranet 21 Using Linux As an Intranet Server  447 22 DNS 455   23 Apache and the World Wide Web 481 24 Linux Data_base_ Servers  517 25 Dynamic, Data-Driven Web Sites 545 26 News Services 569 27 FTP Servers 591 VI Appendixes A Linux Command Rference   625 B Linux Hardware Support   717 Index 809 Table of Contents I Linux Deployment and   Installation 5 I Issues in Linux Installation 7 Installation and the Distributions 8 Hardware Concerns 8 Linux Device Naming 10 Linux Partitioning Schemes 14  Swap Partitions 16  Using fdisk 16 2 Automated Installation 21 Issues in Automated Installation 22 Automated Installation with Red Hat's Kickstar 22 The Kickstart Concept 22  Building a Kickstart Configuration File 22  Kickstart Using a Boot Floppy Disk 27  Kickstart Using a DHCP Server 27 Troubleshooting 29 II General System Administration 31 3 User and Group Administration 33 Users and Groups in Linux 34 The / etc/passwd File 34 The /etc/group File 37 Creating Users 38  Creating Users Manually 38  Creating Users with a System  Utility 40  Changing User Information (Name,  Default Shell, and So Forth)) 42  Deleting and Disabling Users 45  Disabling Users 46 Deleting User  Accounts 47 Password Security and Shadow Passwords 48  Using MD5 Encryption 48 Using the  Shadow Password Suite 49 Troubleshooting 50 4 Booting Up and Shutting Down 53 Booting Up 54  Loading Linux into Memory 54  Kernel Initialization and  Hardware Configuration 56  Startup of Special Kernel Threads 60  Linux Run Levels 60  Running Initialization  _script_s in /etc/rc.d Directory 62  Single-User Mode 64  Mulliuser Operating Mode 65 Shutting Down 65  shutdown 65  telinit and init 66  halt 66 reboot 67  Ctrl+Alt+Del 67 Troubleshooting 67  Hardware Problems 68  File System Corruption 68  Newly Built Karnel Won't Boot 68  Errors in Startup  _script_s 69 5 Using xdm to Create an X Windows   Application Server 71 What is an X Application Server? 72  Understanding the Relationship  Between Client and Server in the  X Windows System 72 Using xdm to Create Linux-_base_d  Logins for X Workstations and Terminals 73  Customizing the xdm Login Prompt 78  Configuring a Linux Client to Obtain Its Login  Prompt from a Remote xdm Server 79 Troubleshooting 80 6 Authenticating Users and Network Resources 83 Network Authentication in UNIX and Linux 84 NIS Network Configurations 84  Routed Network 85  NIS Maps 86 Setting Up an NIS Master Server 87  Setting an NIS Domain Name 87  Populating Configuration Files for the  NIS Maps 88 Running ypinit 88  Making Sure Everytlung Is Running 88 Setting Up an NIS Client 89  Setting the NIS Domain Name in the  /etc/yp.conf File 89  Running ypbind 90  Editing the /etc/passwd File 90  Adding an NIS Slave Server 91  Setting the NIS Domain Name 91  Running ypinit 91 Moving NIS Master Functions to Another Machine 91  Creating the New Master Server  As a Slave Server 92  Adding the New Master Server to  the ypservers Data_base_ 92  Copying the /etc Configuration Files 93  Deleting Time Stamp Files from /var/yp on the  New Master 94    Running make with the NOPUSH=1    Option 94  Transfering the New NIS Maps from the  New Master Server to the Old Master Server 94  Pushing the New Maps from the Old Master  Server to All Slave Servers 95  Retiring the Old Master Server 95 Removing an NIS Slave Server 95  An Alternate Approach to Editing  ypservers 96 Maintaining NIS Maps 96  Editing NIS Maps 96 Synchronizing NIS  Maps on a Schedule 97  Other NIS Programs 97 Understanding the Name Server Switch 98 Useful _script_s 99  add-rm-ypservers 100  Troubleshooting 101 7 SchedulingTasks 103 Scheduling Tasks in Linux 104 Using the crond Daemon 104  The crontab Configuration File 105  Editing Users' crontab Files 107  Controlling Use of crontab with cron.allow  and cron.deny 108 Using the at Daemon 109 Time Formats for the at  Command 110  Checking the atd  Queue 110  Removing a Job from the atd  Queue 110  Restricting Access to at with at.allow  and at.deny 111 Useful _script_s 111  fschecker 111  syscheck 113  Troubleshooting 115 8 Linux Process Management   and Daemons 117 Linux Processes and Daemons 118 Understanding Processes 118 Properties and Attributes of Processes 115 Process Priority 120 Process Creation 120 Monitoring Processes with the ps Command 121  Process States 121  Sample ps Output 121 Monitoring Processes with the top Command 124 The Role of Daemons 126 Stopping Processes with the kill Command 127 Linux Signals 129 Changing Process Priorities 131 Tracking System Load and Performance with vmstat 133  The Procs Section 134  The Memory Section 134  The Swap  Section 135  The Io Section 135  The System Section 135  The CPU section 135  Interpreting vmstat Output 135 Useful _script_s 137  chkdaemon 137  chkload 138  chkswap 139 Troubleshooting 140 9 Installing and Using RAID 143 Understanding RAID 144  Why You Should Use RAID 144.  Striping 144. Different RAID Architectures 145 RAID Implementations 147 Installing and Configuring RAID in Linux 148  Supported Controllers 148  What Hardware Should Be Used? 149  Installation 150  Configuring and Testing Your Array 152  Features in the EATA DMA Driver 153 Troubleshooting 155 Upon Bootup, No SCSI Hosts Are Detected 155  RAID Configuration Shows Up As N Different  Disks 156  Machine or Controller Is Shut  Down in the Middle of a Format 156  SCSI_ABORT BUSY Errors Produced  During Initial File System Format 156 10 Back Up and Restore 157 Why Backup Is Important 158 Planning a Backup Strategy 158 Tape Drives 159  Testing Your Tape Drive 160 What Backup Software to Use 162  Backing Up with tar 162  Using dump and restore 164  Backing Up with Amanda 166 Disaster Recovery 184  Restoring the Operating System to a New Disk 185 Troubleshooting 189  Amanda Incorrectly  Reports the Free Space on the Holding Disk and  /tmp 189  amdump Reports All Disks Have  Failed 190 amcheck Reports Permissions  Problems 190  Amanda Has Problems Writing to  Tape 190  Using amstatus 191 11 Buliding the Linux Kernel 193 Overview of the Kernel 194 Why Rebuild the Kernel? 195 Obtaining New Versions of the Kernel 196 Configuring the Kernel 197 Compiling the Kernel 199 Testing Your New Kernel 200  Testing the Kernel Without Using a  Boot Floppy 201 Installing Modules 201 Installing the New Kernel 202 Patching the Kernel 203  Cleaning Up After Patching 204 Understanding Modules 204 Understanding the p roc File System 205  Tuning Kernel Parameters with  /proc 206 Symmetric Multiprocessing 207 Troubleshooting 209  Your Kernel Doesn't Compile 210  Your New Kernel Doesn't Boot 210  Your System Won't Boot 210  Your System Can't Find a Compressed  Kernel Image File 211  You Cannot Compile Other Programs  After a Kernel Upgrade 211  Your Kernel Is Too Large and Too  Slow 212  You Have Problems with Your Parallel  Port or Printer 212  You Have Problems with Your  CD-ROM Drive 212 12 Capacity Planning 213 Planning for Growth 214 Reasons for Capacity Planning 215 Server Sizing 215  Estimating the Workload 216  Understanding Performance  Measurement 216 Case Study: Practical Tips on Data Collection and Analysis 220  Using MRTG to Size the Internet  Connection 221 III Network Management 227 13 Linux Network Configuration and    TCP/IP 229 Understanding TCP/IP Networking 230  The OSI Reference Model 231  TCP/IP Protocol Stack 232  IP Addresses 233  Subnetworks and Network Masks 235  Limitations of Classful Addressing 237  Classless Inter-Domain Routing (CIDR) 237  Routing 239 Configuring Linux Networking 240  Configuring Networking Red Hat Linux 6.2 240  Manual Linux Network Configuration 247  Configuring Multi-Homed Hosts 252  Implementing Multiple Virtual IP Addresses 253 Troubleshooting 254  Linux Network Troubleshooting  Utilities 255 14 Printer and File Sharing with NFS    and Samba 267 What Is Samba? 268 Getting Samba Up and Running 268 The smb.conf File 270  Testing your smb.conf File 273 Sharing Linux Files with Samba 273 Sharing Linux Printers with Samba 275 Using Linux As a Samba Client 276    Accessing Shared Printers with  Samba 278  What Is NFS? 280 Configuring NFS 281  User Permissions and NFS 282 Accessing Remote Shared Directories with NFS 283 Configuring lpd for Remote Printing 283  Configuring a Local Printer 284  Allowing Remote
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Autor                : Danesh, Arman    Das, Gautam    Samadrala, Ram Titel                : Special Edition Using Linux System Administration Dokumenttyp          : Autorenwerk       ISBN                 : 0789723522 Erscheinungsjahr     : 2000 Verlag               : QUE , Indianapolis, Indiana Standort             : 0100 (Praesenzbibliothek ; steht unter : DAN ) Signatur             : 2.2000A204 Archiviert am        : 21.9.2000 Neuerwerbungsregal   : von 26.9.2000 bis 2.10.2000 Inhaltsverzeichnis: Arman Danesh    Gautam Das    Ram Samadrala Special Edition Using Linux System Administration QUE , Indianapolis, Indiana , 2000 , 835 S. ISBN 0789723522 CONTENTS AT A GLANCE Introduction I Linux Apex Deployment and Installation 1 Issues in Linux Installation 7 2 Automated Installation 21 II General - System Administration 3 User and Group Administration   33 4 Booting Up and Shutting Down 53 5 Using xdm to Create an X Windows Applications 691   Server 71 6 Authenticating Users and Network Resources 3 7 Sheduling Tasks 103 8 Linux Process Management and Daemons 117 9 Installation and Using RAID 143 10 Back Up and Restore 157 11 Building the Linux Kernel - Kernel 193 12 Capacity Planning 213 III Network Management 13 Linux Network Configuration and TCP/IP 229 14 Printer and File Sharing with NFS and Samba 267 15 Routing with Linux 289 16 Linux Mail Services with sendmail 309 17 Fax Servers 343 IV Secirity and Stability 18 General Security 387 19 Linux and Firewalls 399 20 Log Management and Analysis 433 V The Internet and the Intranet 21 Using Linux As an Intranet Server  447 22 DNS 455   23 Apache and the World Wide Web 481 24 Linux Data_base_ Servers  517 25 Dynamic, Data-Driven Web Sites 545 26 News Services 569 27 FTP Servers 591 VI Appendixes A Linux Command Rference   625 B Linux Hardware Support   717 Index 809 Table of Contents I Linux Deployment and   Installation 5 I Issues in Linux Installation 7 Installation and the Distributions 8 Hardware Concerns 8 Linux Device Naming 10 Linux Partitioning Schemes 14  Swap Partitions 16  Using fdisk 16 2 Automated Installation 21 Issues in Automated Installation 22 Automated Installation with Red Hat's Kickstar 22 The Kickstart Concept 22  Building a Kickstart Configuration File 22  Kickstart Using a Boot Floppy Disk 27  Kickstart Using a DHCP Server 27 Troubleshooting 29 II General System Administration 31 3 User and Group Administration 33 Users and Groups in Linux 34 The / etc/passwd File 34 The /etc/group File 37 Creating Users 38  Creating Users Manually 38  Creating Users with a System  Utility 40  Changing User Information (Name,  Default Shell, and So Forth)) 42  Deleting and Disabling Users 45  Disabling Users 46 Deleting User  Accounts 47 Password Security and Shadow Passwords 48  Using MD5 Encryption 48 Using the  Shadow Password Suite 49 Troubleshooting 50 4 Booting Up and Shutting Down 53 Booting Up 54  Loading Linux into Memory 54  Kernel Initialization and  Hardware Configuration 56  Startup of Special Kernel Threads 60  Linux Run Levels 60  Running Initialization  _script_s in /etc/rc.d Directory 62  Single-User Mode 64  Mulliuser Operating Mode 65 Shutting Down 65  shutdown 65  telinit and init 66  halt 66 reboot 67  Ctrl+Alt+Del 67 Troubleshooting 67  Hardware Problems 68  File System Corruption 68  Newly Built Karnel Won't Boot 68  Errors in Startup  _script_s 69 5 Using xdm to Create an X Windows   Application Server 71 What is an X Application Server? 72  Understanding the Relationship  Between Client and Server in the  X Windows System 72 Using xdm to Create Linux-_base_d  Logins for X Workstations and Terminals 73  Customizing the xdm Login Prompt 78  Configuring a Linux Client to Obtain Its Login  Prompt from a Remote xdm Server 79 Troubleshooting 80 6 Authenticating Users and Network Resources 83 Network Authentication in UNIX and Linux 84 NIS Network Configurations 84  Routed Network 85  NIS Maps 86 Setting Up an NIS Master Server 87  Setting an NIS Domain Name 87  Populating Configuration Files for the  NIS Maps 88 Running ypinit 88  Making Sure Everytlung Is Running 88 Setting Up an NIS Client 89  Setting the NIS Domain Name in the  /etc/yp.conf File 89  Running ypbind 90  Editing the /etc/passwd File 90  Adding an NIS Slave Server 91  Setting the NIS Domain Name 91  Running ypinit 91 Moving NIS Master Functions to Another Machine 91  Creating the New Master Server  As a Slave Server 92  Adding the New Master Server to  the ypservers Data_base_ 92  Copying the /etc Configuration Files 93  Deleting Time Stamp Files from /var/yp on the  New Master 94    Running make with the NOPUSH=1    Option 94  Transfering the New NIS Maps from the  New Master Server to the Old Master Server 94  Pushing the New Maps from the Old Master  Server to All Slave Servers 95  Retiring the Old Master Server 95 Removing an NIS Slave Server 95  An Alternate Approach to Editing  ypservers 96 Maintaining NIS Maps 96  Editing NIS Maps 96 Synchronizing NIS  Maps on a Schedule 97  Other NIS Programs 97 Understanding the Name Server Switch 98 Useful _script_s 99  add-rm-ypservers 100  Troubleshooting 101 7 SchedulingTasks 103 Scheduling Tasks in Linux 104 Using the crond Daemon 104  The crontab Configuration File 105  Editing Users' crontab Files 107  Controlling Use of crontab with cron.allow  and cron.deny 108 Using the at Daemon 109 Time Formats for the at  Command 110  Checking the atd  Queue 110  Removing a Job from the atd  Queue 110  Restricting Access to at with at.allow  and at.deny 111 Useful _script_s 111  fschecker 111  syscheck 113  Troubleshooting 115 8 Linux Process Management   and Daemons 117 Linux Processes and Daemons 118 Understanding Processes 118 Properties and Attributes of Processes 115 Process Priority 120 Process Creation 120 Monitoring Processes with the ps Command 121  Process States 121  Sample ps Output 121 Monitoring Processes with the top Command 124 The Role of Daemons 126 Stopping Processes with the kill Command 127 Linux Signals 129 Changing Process Priorities 131 Tracking System Load and Performance with vmstat 133  The Procs Section 134  The Memory Section 134  The Swap  Section 135  The Io Section 135  The System Section 135  The CPU section 135  Interpreting vmstat Output 135 Useful _script_s 137  chkdaemon 137  chkload 138  chkswap 139 Troubleshooting 140 9 Installing and Using RAID 143 Understanding RAID 144  Why You Should Use RAID 144.  Striping 144. Different RAID Architectures 145 RAID Implementations 147 Installing and Configuring RAID in Linux 148  Supported Controllers 148  What Hardware Should Be Used? 149  Installation 150  Configuring and Testing Your Array 152  Features in the EATA DMA Driver 153 Troubleshooting 155 Upon Bootup, No SCSI Hosts Are Detected 155  RAID Configuration Shows Up As N Different  Disks 156  Machine or Controller Is Shut  Down in the Middle of a Format 156  SCSI_ABORT BUSY Errors Produced  During Initial File System Format 156 10 Back Up and Restore 157 Why Backup Is Important 158 Planning a Backup Strategy 158 Tape Drives 159  Testing Your Tape Drive 160 What Backup Software to Use 162  Backing Up with tar 162  Using dump and restore 164  Backing Up with Amanda 166 Disaster Recovery 184  Restoring the Operating System to a New Disk 185 Troubleshooting 189  Amanda Incorrectly  Reports the Free Space on the Holding Disk and  /tmp 189  amdump Reports All Disks Have  Failed 190 amcheck Reports Permissions  Problems 190  Amanda Has Problems Writing to  Tape 190  Using amstatus 191 11 Buliding the Linux Kernel 193 Overview of the Kernel 194 Why Rebuild the Kernel? 195 Obtaining New Versions of the Kernel 196 Configuring the Kernel 197 Compiling the Kernel 199 Testing Your New Kernel 200  Testing the Kernel Without Using a  Boot Floppy 201 Installing Modules 201 Installing the New Kernel 202 Patching the Kernel 203  Cleaning Up After Patching 204 Understanding Modules 204 Understanding the p roc File System 205  Tuning Kernel Parameters with  /proc 206 Symmetric Multiprocessing 207 Troubleshooting 209  Your Kernel Doesn't Compile 210  Your New Kernel Doesn't Boot 210  Your System Won't Boot 210  Your System Can't Find a Compressed  Kernel Image File 211  You Cannot Compile Other Programs  After a Kernel Upgrade 211  Your Kernel Is Too Large and Too  Slow 212  You Have Problems with Your Parallel  Port or Printer 212  You Have Problems with Your  CD-ROM Drive 212 12 Capacity Planning 213 Planning for Growth 214 Reasons for Capacity Planning 215 Server Sizing 215  Estimating the Workload 216  Understanding Performance  Measurement 216 Case Study: Practical Tips on Data Collection and Analysis 220  Using MRTG to Size the Internet  Connection 221 III Network Management 227 13 Linux Network Configuration and    TCP/IP 229 Understanding TCP/IP Networking 230  The OSI Reference Model 231  TCP/IP Protocol Stack 232  IP Addresses 233  Subnetworks and Network Masks 235  Limitations of Classful Addressing 237  Classless Inter-Domain Routing (CIDR) 237  Routing 239 Configuring Linux Networking 240  Configuring Networking Red Hat Linux 6.2 240  Manual Linux Network Configuration 247  Configuring Multi-Homed Hosts 252  Implementing Multiple Virtual IP Addresses 253 Troubleshooting 254  Linux Network Troubleshooting  Utilities 255 14 Printer and File Sharing with NFS    and Samba 267 What Is Samba? 268 Getting Samba Up and Running 268 The smb.conf File 270  Testing your smb.conf File 273 Sharing Linux Files with Samba 273 Sharing Linux Printers with Samba 275 Using Linux As a Samba Client 276    Accessing Shared Printers with  Samba 278  What Is NFS? 280 Configuring NFS 281  User Permissions and NFS 282 Accessing Remote Shared Directories with NFS 283 Configuring lpd for Remote Printing 283  Configuring a Local Printer 284  Allowing Remote
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