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The following formatting conventions are used throughout this book:

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Top Top Cisco cookbook COVER Recipe 18.6. Enabling Syslog on a Unix Server Recipe 18.7. Changing the Default Log Facility Recipe 18.8. Restricting What Log Messages Are Sent to the Server Organization What's in This Book Conventions Comments and Questions Acknowledgments Recipe 18.14. Rate-Limiting Syslog Traffic Introduction Recipe 1.1. Configuring the Router via TFTP Recipe 1.2. Saving Router Configuration to Server Recipe 1.3. Booting the Router Using a Remote Configuration File Recipe 1.4. Storing Configuration Files Larger than NVRAM Recipe 1.5. Clearing the Startup Configuration Recipe 1.6. Loading a New IOS Image Recipe 1.7. Booting a Different IOS Image Recipe 1.8. Booting Over the Network Recipe 1.9. Copying an IOS Image to a Server Recipe 1.10. Copying an IOS Image Through the Console Recipe 1.11. Deleting Files from Flash Recipe 1.12. Partitioning Flash Recipe 1.13. Using the Router as a TFTP Server Recipe 1.14. Using FTP from the Router Recipe 1.15. Generating Large Numbers of Router Configurations Recipe 1.16. Changing the Configurations of Many Routers at Once Recipe 1.17. Extracting Hardware Inventory Information Recipe 1.18. Backing Up Router Configurations Recipe 20.3. Using DHCP to Dynamically Configure Router IP Addresses Introduction Recipe 2.1. Creating Command Aliases Recipe 2.2. Managing the Router's ARP Cache Recipe 2.3. Tuning Router Buffers Recipe 2.4. Using the Cisco Discovery Protocol Recipe 2.5. Disabling the Cisco Discovery Protocol Recipe 2.6. Using the Small Servers Recipe 2.7. Enabling HTTP Access to a Router Recipe 2.8. Using Static Hostname Tables Recipe 2.9. Enabling Domain Name Services Recipe 2.10. Disabling Domain Name Lookups Recipe 2.11. Specifying a Router Reload Time Recipe 2.12. Creating Exception Dump Files Recipe 2.13. Generating a Report of Interface Information Recipe 2.14. Generating a Report of Routing Table Information Recipe 2.15. Generating a Report of ARP Table Information Recipe 2.16. Generating a Server Host Table File Recipe 21.8. Changing TCP Ports for FTP Introduction Recipe 3.1. Setting Up User IDs Recipe 3.2. Encrypting Passwords Recipe 3.3. Using Better Encryption Techniques Recipe 3.4. Removing Passwords from a Router Configuration File Recipe 3.5. Deciphering Cisco's Weak Password Encryption Recipe 3.6. Displaying Active Users Recipe 3.7. Sending Messages to Other Users Recipe 3.8. Changing the Number of VTYs Recipe 3.9. Changing VTY Timeouts Recipe 3.10. Restricting VTY Access by Protocol Recipe 3.11. Enabling Absolute Timeouts on VTY Lines Recipe 3.12. Implementing Banners Recipe 3.13. Disabling Banners on a Port Recipe 3.14. Disabling Router Lines Recipe 3.15. Reserving a VTY Port for Administrative Access