August 1999
Beginner
760 pages
23h 55m
English
Content preview from Running Linux, Third EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Electronic Mail
Electronic mail (email) is one of the most desirable features of a computer system. You can send and receive email on your Linux system locally between users on the host and between hosts on a network. You have to set up three classes of software to provide email service. These are the mail user agent or mailer, the mail transport agent (MTA), and the transport protocol.
The mailer provides the user interface for displaying mail, writing new messages, and filing messages. Linux offers you many choices for mailers. They are always being improved, and a particular mailer may provide certain features, such as the ability to serve as a newsreader or to serve as a web browser.
The mailer relies on the MTA to route mail from one user to another, whether locally or across systems. The MTA in turn uses a transport protocol, usually either UUCP (Unix-to-Unix Copy) or Simple Mail Transport Protocol (SMTP), to provide the medium for mail transfer.
There are a number of possible scenarios when using email on a Linux system, and depending on those scenarios, you will have to install a different set of software packages. However, no matter which option you choose, you will always need a mailer.
The first scenario applies to dial-up access to the Internet via an Internet Service Provider (ISP). In this scenario, there is often only one user on the Linux machine, even though this is not a requirement. The ISP accepts your mail from then Internet and stores it for you on its hard ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.