Security
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You're reading from  Mastering Linux Security and Hardening - Third Edition

Product typeBook
Published inFeb 2023
Reading LevelIntermediate
PublisherPackt
ISBN-139781837630516
Edition3rd Edition
Languages
C
Tools
Linux
Concepts
Information Security
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Author (1)
Donald A. Tevault
Donald A. Tevault
author image
Donald A. Tevault

Donald A. Tevault - but you can call him Donnie - got involved with Linux way back in 2006, and has been working with it ever since. He holds the Linux Professional Institute Level 3-Security certification, and the GIAC Incident Handler certification. Donnie is a professional Linux trainer, and thanks to the magic of the internet, teaches Linux classes literally the world over from the comfort of his living room. He's also a Linux security researcher for an IoT security company.
Read more about Donald A. Tevault

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Summary

In this chapter, we looked at both of the helper programs that directly interface with the netfilter firewall. First, we looked at our trusty old friend, iptables. We saw that even though it’s been around forever and still works, it does have some shortcomings. Then, we worked with nftables and saw that it has certain advantages over the old iptables.

In the space that’s been allotted for this chapter, I’ve only been able to present the essentials that you need in order to set up basic host protection. However, this should be enough to get you started.

In the next chapter, we’ll look at ufw and firewalld, which are helper programs for the two helper programs that we discussed in this chapter. I’ll see you there.

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Mastering Linux Security and Hardening - Third Edition
Published in: Feb 2023Publisher: PacktISBN-13: 9781837630516
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Donald A. Tevault

Donald A. Tevault - but you can call him Donnie - got involved with Linux way back in 2006, and has been working with it ever since. He holds the Linux Professional Institute Level 3-Security certification, and the GIAC Incident Handler certification. Donnie is a professional Linux trainer, and thanks to the magic of the internet, teaches Linux classes literally the world over from the comfort of his living room. He's also a Linux security researcher for an IoT security company.
Read more about Donald A. Tevault

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