08-16-2017, 09:38 PM
[attachment=8136]
Submitted By:-
Manoj kumar
CONTENTS
Introduction of Linux
Why use Linux
System requirements
Linux Directory Structure
About Mail Server
Advantages
Conclusion
References
INTRODUCTION
A fully-networked 32/64-Bit Unix-like Operating System
Multi-user, Multitasking, Multiprocessor
Has the X Windows GUI
Coexists with other Operating Systems
Runs on multiple platforms
Why Use Linux
Freely Available
Provide Security
Open Source
Flexibility
Campatibility
Performance
System requirements
Physical memory-512MB
Disk space -10GB
File system the linux ext3 file system is used by default
Swap space/virtul memory equal to double of physical memory
ABOUT MAIL SERVER
A mail server is an application that receives incoming e-mail from local users and remote senders and forwards outgoing e-mail for delivery. A computer dedicated to running such applications is also called a mail server
Importance
Business and personal communication
Each company provides some type of email service
Important to learn how to install and configure sendmail
Basic configuration
Many types of configuration possible
Separate mail servers on one network
Mails forwarded to a gateway then forwarded onto individual mail-servers
One mail server with many clients
Method Chosen:
One mail server
Problems occur with too much load
Overcome by load balancing through many mail servers with same disks
Method most chosen in sites (easier to administrate)
Concepts of sendmail
Simple installation
Mail user agent-read and compose email messages
Mail transport agent- accepts mail from user agent, understand recipients address. Gets mail to correct host for delivery
Delivery agent accepts mail from transport and delivers it to appropriate recipients