July 2017
Intermediate to advanced
434 pages
12h 59m
English
Content preview from FreeSWITCH 1.8
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Fail2Ban
Fail2Ban is a third-party program that runs in the background and monitors logs. When specific loglines (such as the authentication challenge line shown previously) are seen a certain number of times, Fail2Ban takes an action. It can be programmed to e-mail you with an alert or automatically use IPTables to block an offending IP address after too many attempts occur within a certain period of time.
This book is not intended to be a complete guide for using Fail2Ban. However some sample scripts are given later in the chapter.
To configure Fail2Ban you will need to create several files which instruct Fail2Ban what to look for in your logs and what to do when it finds a match.
Fail2Ban default configuration has a folder where you can ...
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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.