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
Whether they help you recover lost data, collect information from distributed clients, or synchronize administrative environments, the solutions found in Linux Server Hacks, Volume Two will simplify your life as a system administrator.
Inhaltsverzeichnis
Inhaltsverzeichnis
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
40. 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
73. 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
97. Recover Deleted Files
98. Permanently Delete Files
99. Permanently Erase Hard Disks
100. Recover Lost Files and Perform Forensic Analysis
Index
