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# Firewall Explained: How It Works, Types, and Why Every Network Needs One

# Firewall Explained: How It Works, Types, and Why Every Network Needs One

3 min read
Announcing udwall: A New Tool for Making UFW and Docker Play Nice With Each Other

Announcing udwall: A New Tool for Making UFW and Docker Play Nice With Each Other

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5 min read
Why I Don’t Trust Default Firewall Rules on Linux Servers | by Faruk Ahmed | Sep, 2025

Why I Don’t Trust Default Firewall Rules on Linux Servers | by Faruk Ahmed | Sep, 2025

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1 min read
What is a Web Application Firewall (WAF)

What is a Web Application Firewall (WAF)

5 min read
Modern Firewall Solutions Uncovered: Battle-Tested Analysis of OPNsense, CrowdSec & Maltrail for DevOps

Modern Firewall Solutions Uncovered: Battle-Tested Analysis of OPNsense, CrowdSec & Maltrail for DevOps

7 min read
How to Use a Simple All-in-One Update Script for SafeLine

How to Use a Simple All-in-One Update Script for SafeLine

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2 min read
Why Are Firewalls Necessary for Your Website

Why Are Firewalls Necessary for Your Website

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2 min read
Common Environment Variables in SafeLine WAF

Common Environment Variables in SafeLine WAF

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1 min read
Website & API Security Boost with SafeLine Web Application Firewall

Website & API Security Boost with SafeLine Web Application Firewall

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2 min read
What Comes After a VPC? Routing, Firewalls, and Security Rules in AWS

What Comes After a VPC? Routing, Firewalls, and Security Rules in AWS

4 min read
🔒 Configuring Secure Access to Workloads with Azure Firewall

🔒 Configuring Secure Access to Workloads with Azure Firewall

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2 min read
What's the Difference Between Authentication and Authorization?

What's the Difference Between Authentication and Authorization?

5
2 min read
How to Protect an Application from Cyber Attacks

How to Protect an Application from Cyber Attacks

5
2 min read
How to Use SafeLine to Upgrade Your Website from HTTP to HTTPS

How to Use SafeLine to Upgrade Your Website from HTTP to HTTPS

5
2 min read
LuCI on MGMT - Day 7

LuCI on MGMT - Day 7

7 min read
LuCI on MGMT - Day 6

LuCI on MGMT - Day 6

2 min read
Free SafeLine WAF — Initial Review

Free SafeLine WAF — Initial Review

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2 min read
What Is a Homelab, and Why It Needs a WAF

What Is a Homelab, and Why It Needs a WAF

7
2 min read
None Shall Pass: Building and Deploying My Own OPNsense Router

None Shall Pass: Building and Deploying My Own OPNsense Router

9 min read
Site Security Primer for Digital Marketers

Site Security Primer for Digital Marketers

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2 min read
SafeLine WAF v8.10.1 Release Notes

SafeLine WAF v8.10.1 Release Notes

5
2 min read
Top 10 Cloudflare WAF Alternatives in 2025

Top 10 Cloudflare WAF Alternatives in 2025

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3 min read
Setup Firewall on Linux

Setup Firewall on Linux

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2 min read
Why Everyone’s Talking About SafeLine — The Most Powerful Free WAF from Asia

Why Everyone’s Talking About SafeLine — The Most Powerful Free WAF from Asia

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2 min read
NGINX WAF Alternatives: App Protect vs. ModSecurity vs. SafeLine WAF

NGINX WAF Alternatives: App Protect vs. ModSecurity vs. SafeLine WAF

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2 min read
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