December 2003
Beginner
278 pages
10h 47m
English
Content preview from Postfix: The Definitive GuideBecome 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.
Shared Domains with System Accounts
Accepting mail for multiple domains where every user can receive mail for
every domain is the simplest configuration of virtual domains. Simply
add your virtual domains to the mydestination parameter. Create user accounts as you normally would,
and they can start receiving mail addressed to any of the domains. This
technique uses the local delivery agent, providing all of the same
features as your normal canonical domain hosting. Users can create their
own .forward files, and local
aliases are available. On a system whose canonical name is http://oreillynet.com, hosting two
virtual domains, http://ora.com and http://oreilly.com, the mydomain parameter is set as if http://oreillynet.com were the only
domain, and mydestination is set as
follows:
mydomain = oreillynet.com mydestination = $myhostname, $mydomain, ora.com, oreilly.com
Make sure you reload Postfix after making changes. Users can now
receive mail at any of the domains you listed in mydestination:
# postfix reloadMessages addressed to either info@ora.com or info@oreilly.com all go to the same local user account.
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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.