Linux Server Hacks, Volume Two: Tips & Tools for Connecting, Monitoring, and Troubleshooting

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Linux Server Hacks, Volume Two: Tips & Tools for Connecting, Monitoring, and Troubleshooting

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Description

Today's system administrators deal with a vast number of situations,
operating systems, software packages, and problems. Those who are in the know
have kept their copy of Linux Server Hacks close at hand to ease their
burden. And while this helps, it's not enough: any sys admin knows there are
many more hacks, cool tips, and ways of solving problems than can fit in a
single volume (one that mere mortals can lift, that is).
Which is why we created Linux Server Hacks, Volume Two, a second
collection of incredibly useful tips and tricks for finding and using dozens
of open source tools you can apply to solve your sys admin problems. The power
and flexibility of Linux and Open Source means that there is an astounding
amount of great software out there waiting to be applied to your sys admin
problems -- if only you knew about it and had enough information to get
started. Hence, Linux Server Hacks, Volume Two.
 
This handy reference offers 100 completely new server management tips
and techniques designed to improve your productivity and sharpen your
administrative skills. Each hack represents a clever way to accomplish a
specific task, saving you countless hours of searching for the right answer.
No more sifting through man pages, HOWTO websites, or source code comments --
the only resource you need is right here. And you don't have to be a system
administrator with hundreds of boxen to get something useful from this book as
many of the hacks apply equally well to a single system or a home network.

Compiled by experts, these hacks not only give you the step-by-step
instructions necessary to implement the software, but they also provide the
context to truly enable you to learn the technology. Topics include:

Authentication
Remote GUI connectivity
Storage management
File sharing and synchronizing resources
Security/lockdown instruction
Log files and monitoring
Troubleshooting
System rescue, recovery, and repair
Table of
Contents

Credits  
Preface  
Chapter 1. Linux Authentication       

1. Disable User Accounts Instantly        
2. Edit Your Password File for Greater Access Control  
         3. Deny All Access in One Second or Less  
         4. Customize Authentication with
   PAMs         5. Authenticate Linux Users
   with a Windows Domain Controller         6.
   Centralize Logins with LDAP         7.
   Secure Your System with Kerberos         8.
   Authenticate NFS-Lovers with NIS         9.
   Sync LDAP Data with NIS  
   Chapter 2. Remote GUI Connectivity     
     10. Access Systems Remotely with VNC      
     11. Access VNC Servers over the Web      
     12. Secure VNC via SSH         13.
   Autostart VNC Servers on Demand         14.
   Put Your Desktops on a Thin Client Diet      
     15. Run Windows over the Network      
     16. Secure, Lightweight X Connections with FreeNX  
         17. Secure VNC Connections with FreeNX  
         18. Secure Windows Terminal Connections with
   FreeNX         19. Remote Administration
   with Webmin  
   Chapter 3. System Services        20.
   Quick and Easy DHCP Setup         21.
   Integrate DHCP and DNS with Dynamic DNS Updates    
       22. Synchronize Your Watches!      
     23. Centralize X Window System Font Resources  
         24. Create a CUPS Print Server  
         25. Configure Linux Connections to Remote CUPS
   Printers         26. Integrate Windows
   Printing with CUPS         27. Centralize
   Macintosh Printing with CUPS         28.
   Define a Secure CUPS Printer  
   Chapter 4. Cool Sysadmin Tools and Tips     
     29. Execute Commands Simultaneously on Multiple Servers  
         30. Collaborate Safely with a Secured
   Wiki         31. Edit Your GRUB
   Configuration with grubby         32. Give
   Your Tab Key a Workout         33. Keep
   Processes Running After a Shell Exits      
     34. Disconnect Your Console Without Ending Your Session  
         35. Use script to Save Yourself Time and Train
   Others         36. Install Linux Simply by
   Booting         37. Turn Your Laptop into a
   Makeshift Console         38. Usable
   Documentation for the Inherently Lazy      
     39. Exploit the Power of Vim        
3. Move Your PHP Web Scripting Skills to the Command Line  
         41. Enable Quick telnet/SSH Connections from the
   Desktop         42. Speed Up
   Compiles         43. Avoid Common Junior
   Mistakes         44. Get Linux Past the
   Gatekeeper         45. Prioritize Your
   Work  
   Chapter 5. Storage Management and Backups   
       46. Create Flexible Storage with LVM    
       47. Combine LVM and Software RAID    
       48. Create a Copy-on-Write Snapshot of an LVM Volume  
         49. Clone Systems Quickly and Easily  
         50. Make Disk-to-Disk Backups for Large
   Drives         51. Free Up Disk Space
   Now         52. Share Files Using Linux
   Groups         53. Refine Permissions with
   ACLs         54. Make Files Easier to Find
   with Extended Attributes         55. Prevent
   Disk Hogs with Quotas  
   Chapter 6. Standardizing, Sharing, and Synchronizing Resources 
         56. Centralize Resources Using
   NFS         57. Automount NFS Home
   Directories with autofs         58. Keep
   Filesystems Handy, but Out of Your Way      
     59. Synchronize root Environments with rsync  
         60. Share Files Across Platforms Using Samba  
         61. Quick and Dirty NAS  
         62. Share Files and Directories over the Web  

Chapter 7. Security        63. Increase
Security by Disabling Unnecessary Services      
  64. Allow or Deny Access by IP Address    
    65. Detect Network Intruders with snort  
      66. Tame Tripwire      
  67. Verify Fileystem Integrity with Afick    
    68. Check for Rootkits and Other Attacks  
Chapter 8. Troubleshooting and Performance   
    69. Find Resource Hogs with Standard Commands  
      70. Reduce Restart Times with Journaling
Filesystems         71. Grok and Optimize
Your System with sysctl         72. Get the
Big Picture with Multiple Displays        

1. Maximize Resources with a Minimalist Window Manager  
         74. Profile Your Systems Using /proc  
         75. Kill Processes the Right Way  
         76. Use a Serial Console for Centralized Access to Your
   Systems         77. Clean Up NIS After Users
   Depart  
   Chapter 9. Logfiles and Monitoring     
     78. Avoid Catastrophic Disk Failure      
     79. Monitor Network Traffic with MRTG    
       80. Keep a Constant Watch on Hosts    
       81. Remotely Monitor and Configure a Variety of Networked
   Equipment         82. Force Standalone Apps
   to Use syslog         83. Monitor Your
   Logfiles         84. Send Log Messages to
   Your Jabber Client         85. Monitor
   Service Availability with Zabbix         86.
   Fine-Tune the syslog Daemon         87.
   Centralize System Logs Securely         88.
   Keep Tabs on Systems and Services  
   Chapter 10. System Rescue, Recovery, and Repair 
         89. Resolve Common Boot and Startup Problems  
         90. Rescue Me!    
       91. Bypass the Standard Init Sequence for Quick
   Repairs         92. Find Out Why You Can't
   Unmount a Partition         93. Recover Lost
   Partitions         94. Recover Data from
   Crashed Disks         95. Repair and Recover
   ReiserFS Filesystems         96. Piece
   Together Data from the lost+found        
2. Recover Deleted Files         98.
   Permanently Delete Files         99.
   Permanently Erase Hard Disks         100.
   Recover Lost Files and Perform Forensic Analysis  
   Index