Linux System Administration Recipes A Problem-Solution Approach

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■ CONTENTS■Chapter 11: Tracking Down Bugs ......................................................................21311-1. Saving Time....................................................................................................... 21311-2. Knowing What to Check First ............................................................................ 21511-3. Looking at diff Output........................................................................................ 21611-4. Running strace to Look at System Calls............................................................ 21811-4a. Setting strace Options ....................................................................... 22011-4b. Running strace in a Shell Script Wrapper.......................................... 22111-5. Running ltrace and Library Calls ....................................................................... 22111-5a. Setting ltrace Options ........................................................................ 22211-6. Logging with syslogd ........................................................................................ 22311-7. Performing Centralized Logging with syslog..................................................... 22611-8. Plotting Log Data to Locate Problems: perl and gnuplot ................................... 226■Chapter 12: Managing Time and People............................................................23112-1. Managing the Interrupt-Driven Nature of Sysadmin Work ............................... 23112-2. Keeping Track of Work and of Problems........................................................... 23312-3. Ticketing System: Using RT............................................................................... 234Installation..................................................................................................... 234Basic Configuration....................................................................................... 235Setting Up RT ................................................................................................ 235Rights ............................................................................................................ 238Scrips ............................................................................................................ 23912-4. Creating RT Tickets via E-mail .......................................................................... 24012-5. Creating a Secure Setup for RT......................................................................... 24112-6. Getting Big Projects Done.................................................................................. 24312-7. Dealing with Your Colleagues............................................................................ 244■Appendix: Perl Tips............................................................................................247Perl Modules and CPAN .............................................................................................. 247Useful Modules ........................................................................................................... 248Perl Syntax Notes........................................................................................................ 251open with | .................................................................................................... 251SWITCH Statements ...................................................................................... 252■Index..................................................................................................................253xDownload at WoweBook.Com
■ CONTENTSAbout the Author■Juliet Kemp first started messing around with Linux when she discovered it wasmore interesting than Finals revision, then begantaking it more seriously when she discovered that part-time systemsadministration was better than bar work for subsidizing post-graduate education.After a couple of years in political research, she found that the systemsadministration was more interesting than the M.Phil it had funded.Despite not being an astrophysicist herself, she spent the next several years atImperial College, London, sorting out the IT crises of astrophysicists andimproving the group’s server back-end software. She began writing when she realized how much timeshe spent digging up information online and concluded that making her own experiences available toothers might be helpful.She wrote most of this book while temporarily living in Sydney, Australia, but is now back inLondon. Sadly, there is rather less sunshine and ocean available in London than in Sydney, but she likesit anyway. She spends a lot of time on a bike and encouraging other people to ride bikes, has recentlystarted going climbing in place of surfing (you can’t surf on the Thames), and is currently rather takenwith the freelance lifestyle.xiDownload at WoweBook.Com
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Page 21 and 22: C H A P T E R 1■ ■ ■Saving Yo
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CHAPTER 2 ■ CENTRALIZING YOUR NET
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C H A P T E R 3■ ■ ■Monitorin
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CHAPTER 3 ■ MONITORING AND UPDATI
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C H A P T E R 4■ ■ ■Taking Ba
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CHAPTER 4 ■ TAKING BACKUPS AND MA
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C H A P T E R 5■ ■ ■Working w
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CHAPTER 5 ■ WORKING WITH FILESYST
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C H A P T E R 6■ ■ ■Securing
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CHAPTER 6 ■ SECURING YOUR SYSTEMS
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CHAPTER 7 ■ WORKING WITH APACHEOn
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CHAPTER 7 ■ WORKING WITH APACHEdi
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CHAPTER 7 ■ WORKING WITH APACHE4.
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C H A P T E R 8■ ■ ■Making Be
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CHAPTER 8 ■ USING THE COMMAND LIN
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CHAPTER 9 ■ WORKING WITH TEXT IN
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C H A P T E R 10■ ■ ■Things G
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CHAPTER 10 ■ THINGS GO IN, THINGS
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C H A P T E R 11■ ■ ■Tracking
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CHAPTER 11 ■ TRACKING DOWN BUGSTh
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CHAPTER 11 ■ TRACKING DOWN BUGS
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CHAPTER 11 ■ TRACKING DOWN BUGSTh
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CHAPTER 11 ■ TRACKING DOWN BUGSAn
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CHAPTER 11 ■ TRACKING DOWN BUGS#
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C H A P T E R 12■ ■ ■Managing
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CHAPTER 12 ■ MANAGING TIME AND PE
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APPENDIX■ ■ ■Perl TipsSee rec
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APPENDIX ■ PERL TIPS• Date::Par
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APPENDIX ■ PERL TIPSPerl Syntax N
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■ ■ ■Index■Symbols$CDPATH,
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■ INDEXenscript option (printing)
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■ INDEX■NNagiosadding hosts to,
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■ INDEXsyslogcentralized logging
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