November 2009
Beginner
376 pages
8h 49m
English
book
Linux Email
by Ian Haycox, Ralf Hildebrandt, David Rusenko, Alistair McDonald, Patrick Ben Koetter, Carl Taylor, Magnus Back
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Summary
In this chapter, we discussed how to secure your installation. There were several different topics covered, firstly, the configuration of Postfix to only accept e-mail from certain IP addresses, which is useful if all your users are office based. Next, the chapter covered using SASL to authenticate users who might connect from any IP address. Then, we looked at using TLS to encrypt the authentication between client and server. Finally, we looked at limiting clients which behave badly, using the anvil daemon to limit clients that connect too often within a certain time period, and clients that open too many connections at one time.
The measures shown in this chapter will make your life as a postmaster easier, and also help to limit the amount ...
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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.