Overview

Master every topic on Red Hat’s new RHCSA™ and RHCE® exams. Assess your knowledge and focus your learning. Get the practical workplace knowledge you need!   Start-to-finish RHCSA™ and RHCE® preparation from leading Linux system administrator, IT trainer, and certification expert Damian Tommasino!   Master every RHCSA™ and RHCE® topic! Red Hat Enterprise Linux 6 local and network installation System services, runlevels, and bootup Disks, partitions, and file systems, including LUKS encryption Networking Package management User administration Logging, monitoring, and automation Kernel updates and tuning Security, including SELinux, firewalls, and policies Remote access, including SSH Apache, Squid, DNS, DHCP, NTP, and email NFS and Samba Client and network troubleshooting KVM virtualization   Test your knowledge, build your confidence, and succeed! 22 hands-on RHCSA™ and RHCE® Labs, each with multiple real-world tasks Downloadable troubleshooting scripts Practical tutorials and real-world tips Exam tips Red Hat Enterprise Linux 6 Command Quick Reference Exclusive Red Hat exam prep advice and task lists Two full length lab-based practice exams   Damian Tommasino (RHCE, RHCSA, MCSA, CCNA, CCENT, MCP, Security+, Network+, A+) is a Linux system administrator at TradeCard and CEO of Modular Learning Inc., an online IT training company. He blogs on Red Hat, Linux, and security at Security Nut (http://secnut.blogspot.com), and actively contributes to the popular IT exam certification forums at techexams.net.      

Full Product Details

Author:   Damian Tommasino
Publisher:   Pearson Education (US)
Imprint:   Addison-Wesley Educational Publishers Inc
Dimensions:   Width: 23.50cm , Height: 3.20cm , Length: 19.60cm
Weight:   1.028kg
ISBN:  

9780321767950

ISBN 10:   0321767950
Pages:   600
Publication Date:   05 May 2011
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Out of Print
Availability:   Awaiting stock  

Table of Contents

Preface xvi Introduction 3 Chapter 1 Installation 29 Starting the Installation 29 An Older Install with RHEL5 33 The Firstboot Process 37 Verifying the Installation 40 Summary 41 Review Questions 42 Answers to Review Questions 42 Chapter 2 System Initialization 47 The Boot Process 47 Working with GRUB 51 The Config File 52 The GRUB Command Line 54 Runlevels 55 Runlevel Utilities 56 Rescue and Recovery Runlevels 59 Service Management 59 The Upstart Conversion 64 Summary 66 Review Questions 66 Answers to Review Questions 67 Chapter 3 Disks and Partitioning 71 Basic Partitions 71 Creating a Partition 75 Making a Swap Partition 81 Deleting a Partition 83 Logical Volume Manager 85 Creating an LVM Partition 89 Adjusting the Size of LVM Partitions 93 Migrating Data 96 Deleting an LVM Partition 99 Setting Up RAID 101 Creating a RAID Array 102 What to Do When a Disk Fails 105 Deleting a RAID Array 108 Summary 109 Review Questions 109 Answers to Review Questions 109 Chapter 4 File Systems and Such 113 File System Setup 113 Creating a File System 114 Creating a Swap 116 Mounting a File System 119 Extra File System Commands 125 Encryption with LUKS 128 Creating Encrypted Partitions 129 Mounting LUKS at Boot 132 Managing File System Quotas 132 Setting Up Quotas 132 Enabling Quotas 134 Quota Usage Reports 137 File System Security 137 Setting Up ACLs 138 GnuPG 141 Using AutoFS 141 Summary 144 Review Questions 144 Answers to Review Questions 145 Chapter 5 Networking 149 Setting Up Networking 149 Static IP Addresses 151 Routing 155 Creating Static Routes 156 Troubleshooting Network Connections 156 Networking Utilities 157 Network Monitoring and Analysis 159 Advanced Networking 160 Ethernet Bonding 160 Client DNS Troubleshooting 161 Summary 164 Review Questions 165 Answers to Review Questions 165 Chapter 6 Package Management 169 Working with RPM 169 Installing and Removing Packages 170 Querying and Verifying Packages 172 Doing It Again with Yum 177 Installing and Removing Packages 178 Searching for Packages 182 Configuring Additional Repositories 183 Making Your Own RPM 184 Creating an RPM 185 Creating Your Own Repository 188 Adding Your Custom Packages 190 The Red Hat Network 190 Registering Your System 191 Summary 191 Review Questions 192 Answers to Review Questions 192 Chapter 7 User Administration 195 Users and Groups 195 Users 196 Passwords 199 The Password File 200 The Shadow File 201 Groups 204 The Group File 204 Switching Accounts 206 User Account Initialization 207 User-Specific Files 207 Global User Configuration 208 Group Collaboration 209 Network User Authentication 211 Summary 215 Review Questions 215 Answers to Review Questions 216 Chapter 8 Network Installs 221 Kickstart Server Setup 221 Firewall and SELinux Configuration 224 Mastering Kickstart Config Files 225 Post Install 227 Advanced Partitioning 227 Automating Kickstart 228 TFTP Server 229 PXE Boot 232 Firewall and SELinux Configuration 233 Other Network Installs 234 Summary 235 Review Questions 235 Answers to Review Questions 236 Chapter 9 System Logging, Monitoring, and Automation 239 Working with Syslog 239 The Config File 241 Log Rotation 243 Centralized Logging 244 Centralized Logging (The RHEL5 Way) 246 User Login Events 247 Monitoring System Performance 248 Automation with cron and at 252 Creating cron Jobs 254 Single Jobs with at 258 Summary 261 Review Questions 261 Answers to Review Questions 262 Chapter 10 The Kernel 265 Kernel Basics 265 Updating the Kernel 268 Tuning the Kernel with /proc/sys 272 Summary 274 Review Questions 275 Answers to Review Questions 275 Chapter 11 SELinux 277 Understanding SELinux 277 Configuring SELinux 279 File Contexts 279 Service and Boolean Options 283 SELinux Troubleshooting 286 Policy Violations 286 Summary 287 Review Questions 287 Answers to Review Questions 288 Chapter 12 System Security 291 Security Through TCP Wrappers 291 Firewall Rules Using iptables 293 Configuring iptables 294 Troubleshooting Firewall Rules 299 Working with NAT 300 Pluggable Authentication Module 301 Securing Access 301 PAM Troubleshooting 303 Managing Password Policies 304 Summary 305 Review Questions 305 Answers to the Review Questions 306 Chapter 13 Remote Access 309 Secure SHell (SSH) 309 Configuring SSH 310 Firewall and SELinux Configuration 313 SSH Security 314 Troubleshooting SSH 315 SSH Security Revisited 315 Public/Private Keys 316 Port Forwarding 317 VNC Servers 318 Connecting Clients 320 Summary 321 Review Questions 321 Answers to Review Questions 321 Chapter 14 Web Services 325 The Apache Web Server 325 Installing Apache 325 Configuring the Web Server 326 Firewall and SELinux Configuration 329 Troubleshooting Apache 332 Apache Security 334 Host-Based Security 334 User-Based Security 336 Setting Up HTTPS 339 CGI Applications 341 Virtual Hosts 342 Squid Web Proxy 343 Installing Squid 344 Configuring the Proxy 344 Firewall and SELinux Configuration 345 Web Proxy Security 346 Summary 347 Review Questions 347 Answers to Review Questions 348 Chapter 15 NFS 351 Network File Systems 351 Installing an NFS Server 352 Configuring NFS 353 Firewall and SELinux Configuration 358 NFS Security 360 Troubleshooting NFS 361 Connecting Clients 364 Summary 366 Review Questions 366 Answers to Review Questions 366 Chapter 16 Samba 369 Samba 369 Configuring Samba 370 Samba Security 377 Samba Clients 377 Summary 379 Review Questions 380 Answers to Review Questions 380 Chapter 17 FTP 383 File Transfer Protocol 383 Installing an FTP Server 384 Configuring vsftp 384 Firewall and SELinux Configuration 386 FTP Security 388 Troubleshooting FTP 389 Summary 390 Review Questions 390 Answers to Review Questions 391 Chapter 18 DNS 393 Setting Up BIND 393 Firewall and SELinux Configuration 394 Configuring a DNS Server 396 Master Server 397 Slave Server 401 Caching-Only Server 404 Forwarding-Only Server 406 DNS Utilities and Troubleshooting 406 BIND Security 412 Summary 417 Review Questions 417 Answers to Review Questions 418 Chapter 19 Network Services 421 Xinetd: The Master Service 421 Dynamic Host Configuration Protocol 426 Installing a DHCP Server 426 Configuring the DHCP Server 427 Security Configuration 431 Troubleshooting DHCP 432 Network Time Protocol 433 Installing a Time Server 434 Configuring NTP 434 Firewall and SELinux Configuration 436 NTP Security 437 Troubleshooting NTP 438 Summary 439 Review Questions 439 Answers to Review Questions 439 Chapter 20 Email Services 443 Email Service Overview 443 SMTP with Postfix 443 Configuring Postfix 445 Firewall and SELinux Configuration 449 Postfix Security 450 Alias Mapping 451 Receiving Mail with Dovecot 452 Configuring Dovecot 452 Firewall and SELinux Configuration 453 Dovecot Security 454 Testing the Mail Server 456 Summary 458 Review Questions 459 Answers to Review Questions 459 Chapter 21 Troubleshooting 463 Boot Issues 463 I Lost My Root User Password 463 Password Change Not Available in Single-User Mode 464 The MBR Is Corrupt 464 The Partition or Root File System Can't Be Found 465 Troubleshooting File Systems 466 The System Complains About a File System Label 466 The Superblock Has Become Corrupt 466 Users Can't Create Files in Their Home Directories 467 Miscellaneous 468 I Can't Remote into My System 468 I Can't Access Service X 468 When I Start a Service, It Tells Me Cannot Bind to Address 469 I Get the Error Message No Route to Host 469 My Ping to Another Host Has Failed 470 Summary 470 Chapter 22 Virtualization with KVM 473 Working with Virtual Machines 473 Setting Up the Physical Host 473 Installing a Virtual Client 474 Managing a Virtual Client 477 Monitoring Virtual Resources 479 Summary 480 Review Questions 480 Answers to Review Questions 481 Lab Exam 1 483 Lab Exam 2 485 Index 486 TOC, 9780321767950, 3/15/2011

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Author Information

Damian Tommasino is currently a Linux system administrator at TradeCard and CEO of Modular Learning, Inc., an online IT training company. His current certifications include RHCE, RHCSA, MCSA, CCNA, CCENT, MCP, Security+, Network+, and A+. He has a popular blog called Security Nut (http://secnut.blogspot.com) that covers Red Hat, Linux, security, and more. Damian also spends time over at techexams.net helping out in the forums and conversing with friends.

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