December 2003
Intermediate to advanced
408 pages
11h 58m
English
Content preview from sendmail CookbookBecome 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.
Chapter 1. Getting Started
Introduction
To follow a recipe successfully, you must clearly understand the instructions it contains. You must understand the difference between folding and stirring and be able to find the spices when the recipe calls for a pinch of cumin. Just as you must be able to find your way around the kitchen to become a cook, you must know your way around the sendmail distribution in order to build or customize a sendmail configuration.
The directory structure—created by the sendmail source code distribution tarball— contains the tools and ingredients used to build and configure sendmail. The top-level directory created by the tarball is assigned a name that identifies the sendmail version number. At the time of this writing, the current version is sendmail 8.12.9; therefore, the top-level directory is named sendmail-8.12.9. By the time you read this, there will be a newer version of sendmail, and the directory name will reflect that new version number. An ls of the top-level directory shows the following:[1]
$ ls sendmail-8.12.9 Build doc INSTALL libsmdb mailstats praliases sendmail cf editmap KNOWNBUGS libsmutil Makefile README smrsh contrib FAQ libmilter LICENSE makemap RELEASE_NOTES test devtools include libsm mail.local PGPKEYS rmail vacation
Most of these files and directories are used to compile sendmail. The Build script uses the Makefile to compile sendmail and its utilities. The devtools directory is used to set compiler options, as discussed in ...
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.