sendmail Performance Tuning
Featuring sendmail 8.12
Résumé
As email traffic continues to increase, system administrators must be able to guarantee that their email servers can deliver reliable performance today and bear larger loads tomorrow. sendmail Performance Tuning is a practical guide to building, tuning, and testing email servers based on sendmail to function more efficiently, handle more messages, and resist both accidental and malicious load-related incidents.
Featuring sendmail 8.12 (and earlier versions), the book begins with an introduction to sendmail and performance tuning. Author Nick Christenson then describes best practices for building, installing, and maintaining a system and details proven techniques for tuning email relaying, reception, and sending. This strategic guide to configuration and security is followed by precise directions for managing bottlenecks and load testing. By the book's end, readers should know exactly how to optimize system performance.
Key topic coverage includes:
- A detailed description of the step-by-step operations that occur during email transmission and reception
- How to send and store email most efficiently
- What the performance characteristics of POP and IMAP are
- How to determine which sendmail configuration parameters might improve performance
- How to locate and eliminate bottlenecks
- Methods and pitfalls in testing email servers before they are installed in a production environment
Whether you are looking to solve an immediate problem or gain a deeper understanding of email servers, sendmail Performance Tuning provides clear guidance and valuable insight.
Contents
1. Introduction- Performance Tuning Examples
- sendmail Versions Covered
- Definitions
- Email Server Tasks
- Tuning Isn't Always Necessary
- Not So Fast
- Email System Profiling
- General Tuning Ideas
- Obtaining sendmail
- Building sendmail
- Creating a .cf file
- Why Use M4?
- System Setup
- What Happens During Relaying
- Synchronization
- File Systems
- File Space
- Networking
- What Happens During Email Reception
- Recipient Verification
- Storage Systems
- Disks
- Solid State Disks
- POP Tuning Specifics
- Message Store Hashing
- IMAP Tuning Specifics
- Mailing Lists
- Command Line Message Generation
- Draining Queues
- Another Mailing List Strategy
- SMTP Pipelining
- More Notes on Mass Mailing
- Configuration
- Security and Performance
- Other General Strategies
- Kernel Parameters Run Amok
- The Quick Fix
- Tools
- syslog
- Removing Bottlenecks
- Test System Setup
- Testing Tools
- Load Testing Pitfalls
Caractéristiques techniques
| PAPIER | |
| Éditeur(s) | Addison Wesley |
| Auteur(s) | Nick Christenson |
| Parution | 02/01/2003 |
| Nb. de pages | 256 |
| Format | 18,5 x 23,5 |
| Couverture | Broché |
| Poids | 528g |
| Intérieur | Noir et Blanc |
| EAN13 | 9780321115706 |
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