Linux System Administration Recipes A Problem-Solution Approach

More documents

Recommendations

Info

■ INTRODUCTIONChapter 4, “Taking Backups and Managing Data,” covers how to get your backups properly set upbefore the first time you need them and how to have rapid-restore in place in case of a serveremergency. Finally, you will learn how to rescue data from bad disks when for whatever reason yourbackups aren’t useful.Chapter 5, “Working with Filesystems,” covers editing and resizing your filesystems on the fly andusing RAID to your best advantage.Chapter 6, “Securing Your Systems,” covers SSH, password policy, sudo, Kerberos, Apache–thereare many parts of your systems where security matters. Test password strength yourself before anintruder does!Chapter 7, “Working with Apache,” includes a handful of recipes to help you out when you’re usingthe preeminent web server on the Internet.Chapter 8, “Using the Command Line Better,” covers bash, which is incredibly versatile. It pays tolearn more about it. This chapter also includes a find and xargs quick reference. Both find andxargs are great tools, but the man pages can be a bit alarming if you’re not already familiar withthem.Chapter 9, “Working with Text in Files,” covers less, sed, awk, and Perl, which all do useful thingswith text files. The final recipe looks at getting text out of other files, too.Chapter 10, “Things Going In, Things Going Out,” covers keyboard maps, printers, and remotedesktops.Chapter 11, “Tracking Down Bugs,” contains recipes about best practices and the best tools whenyou’re bug hunting, which sysadmins spend a lot of time doing, so it’s a good idea to make theprocess as pain-free as possible.Chapter 12, “Managing Time and People,” covers managing time and people. (Un?)fortunately, wedon’t spend all of our time with computers. Especially if you do any first-line user support, thinkingabout how you deal with your colleagues can make an enormous amount of difference to how yourworking life goes on a day-to-day basis. Similarly, managing your time between the multitude ofdemands on it is challenging but incredibly important to your well being at work.ConventionsLines starting with # indicate a root prompt. The code continuation character indicates that whatwould be a single line at the shell prompt or in a text file has been split onto multiple lines for ease oftypesetting in this book.PrerequisitesThe recipes have been tested on Debian 5.0 (lenny) and Ubuntu 9.04 (Jaunty Jackalope), which were thestable versions of both distributions at the time of this writing. Other Linux distros may vary slightly infile names and the way that various system issues are handled. I’ve tried to note some differences, butyou might need to make your own additional changes. The basic theory or idea behind each recipeshould be valid for any modern Linux distribution. Software versions are given in the text (in general,these will be the versions as packaged for Debian 5.0 and Ubuntu 9.04 at the time of this writing).xviDownload at WoweBook.Com
■ INTRODUCTIONDownloading the CodeThe code–config files and scripts–for this book is available to readers at http://www.apress.com in theDownloads section of this book’s home page. Please feel free to visit the Apress web site and downloadall the code there. You can also check for errata and find related titles from Apress.Contacting the AuthorI can be contacted at juliet@earth.li or via my website at http://the.earth.li/~juliet/. I writeregularly for http://www.serverwatch.com and http://www.linuxplanet.com/, as well as for themagazines Linux Format and Linux Pro Magazine.xviiDownload at WoweBook.Com
Page 2: Download at WoweBook.Com
Page 5 and 6: Download at WoweBook.Comiii
Page 7 and 8: Contents■About the Author .......
Page 9 and 10: ■ CONTENTS3-7. Writing a Nagios P
Page 11 and 12: ■ CONTENTS■Chapter 8: Using the
Page 13 and 14: ■ CONTENTSAbout the Author■Juli
Page 15 and 16: ■ CONTENTSAcknowledgmentsMany tha
Page 17: ■ CONTENTSIntroductionThis book i
Page 21 and 22: C H A P T E R 1■ ■ ■Saving Yo
Page 23 and 24: CHAPTER 1 ■ SAVING YOURSELF EFFOR
Page 41 and 42: C H A P T E R 2■ ■ ■Centraliz
Page 43 and 44: CHAPTER 2 ■ CENTRALIZING YOUR NET
Page 69 and 70:
CHAPTER 2 ■ CENTRALIZING YOUR NET
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
C H A P T E R 3■ ■ ■Monitorin
Page 85 and 86:
CHAPTER 3 ■ MONITORING AND UPDATI
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
C H A P T E R 4■ ■ ■Taking Ba
Page 117 and 118:
CHAPTER 4 ■ TAKING BACKUPS AND MA
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
C H A P T E R 5■ ■ ■Working w
Page 141 and 142:
CHAPTER 5 ■ WORKING WITH FILESYST
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
C H A P T E R 6■ ■ ■Securing
Page 157 and 158:
CHAPTER 6 ■ SECURING YOUR SYSTEMS
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
CHAPTER 7 ■ WORKING WITH APACHEOn
Page 181 and 182:
CHAPTER 7 ■ WORKING WITH APACHEdi
Page 183 and 184:
CHAPTER 7 ■ WORKING WITH APACHE4.
Page 185 and 186:
CHAPTER 7 ■ WORKING WITH APACHE
Page 187 and 188:
CHAPTER 7 ■ WORKING WITH APACHEAl
Page 189 and 190:
CHAPTER 7 ■ WORKING WITH APACHE
Page 191 and 192:
C H A P T E R 8■ ■ ■Making Be
Page 193 and 194:
CHAPTER 8 ■ USING THE COMMAND LIN
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
CHAPTER 9 ■ WORKING WITH TEXT IN
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
C H A P T E R 10■ ■ ■Things G
Page 225 and 226:
CHAPTER 10 ■ THINGS GO IN, THINGS
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
C H A P T E R 11■ ■ ■Tracking
Page 235 and 236:
CHAPTER 11 ■ TRACKING DOWN BUGSTh
Page 237 and 238:
CHAPTER 11 ■ TRACKING DOWN BUGS01
Page 239 and 240:
CHAPTER 11 ■ TRACKING DOWN BUGS
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
CHAPTER 11 ■ TRACKING DOWN BUGSTh
Page 247 and 248:
CHAPTER 11 ■ TRACKING DOWN BUGSAn
Page 249 and 250:
CHAPTER 11 ■ TRACKING DOWN BUGS#
Page 251 and 252:
C H A P T E R 12■ ■ ■Managing
Page 253 and 254:
CHAPTER 12 ■ MANAGING TIME AND PE
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
APPENDIX■ ■ ■Perl TipsSee rec
Page 269 and 270:
APPENDIX ■ PERL TIPS• Date::Par
Page 271 and 272:
APPENDIX ■ PERL TIPSPerl Syntax N
Page 273 and 274:
■ ■ ■Index■Symbols$CDPATH,
Page 275 and 276:
■ INDEXenscript option (printing)
Page 277 and 278:
■ INDEX■NNagiosadding hosts to,
Page 279 and 280:
■ INDEXsyslogcentralized logging
Page 281 and 282:
Download at WoweBook.Com
show all

Linux System Administration Recipes A Problem-Solution Approach

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?