August 2015
Intermediate to advanced
364 pages
7h 35m
English
Content preview from Mastering OpenVPNBecome 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,
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Using LDAP as a backend authentication mechanism
Normally, the security of a VPN is based on a X.509 certificate / private key pair, which all users of the VPN must possess in order to gain access. The security of your VPN can be further increased by requiring users to also supply a username and password when they connect to the OpenVPN server.
On the server side, the verification of the username and password can be done using several mechanisms:
- Using a server-side password file that contains the username and their hashed passwords.
- Using PAM (short for Pluggable Authentication Module), which is normally included in all Linux/UNIX operating systems.
- Using a central directory server based on Lightweight Directory Access Protocol (LDAP). Note that ...
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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.
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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.