Why keep a host-based firewall (e.g., Windows Firewall, ufw/nftables) enabled even with a perimeter firewall?

Problem Statement

Explanation

Host firewalls restrict inbound and outbound flows per machine, containing blast radius if an attacker lands on an endpoint. They complement, not replace, network firewalls and segmentation.

Code Solution

SolutionRead Only

Linux (ufw): ufw default deny incoming; ufw allow 22/tcp
Windows: New-NetFirewallRule -DisplayName "Allow SSH" -Direction Inbound -Protocol TCP -LocalPort 22 -Action Allow

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Hardening & Defense

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Why keep a host-based firewall (e.g., Windows Firewall, ufw/nftables) enabled even with a perimeter firewall?

Problem Statement

Explanation

Code Solution

Practice Sets

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Why keep a host-based firewall (e.g., Windows Firewall, ufw/nftables) enabled even with a perimeter firewall?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

What does the CIA triad stand for in information security?

What is the primary purpose of a firewall in network security?

Which device or service filters HTTP(S) traffic specifically to protect web applications?

What best describes an SQL injection attack?

What principle underpins the Zero Trust security model?

More from System Security

Master Interviews
Anywhere, Anytime