Articles by Tag #firewall
Browse our collection of articles on various topics related to IT technologies. Dive in and explore something new!
Why SafeLine is better than traditional WAF?
Drawbacks of traditional WAFs Traditional WAFs typically use regular expressions to define...
How This Open-Source WAF Recommended by BAT Experts Stops Hackers Cold
SafeLine WAF is an open-source web application firewall (WAF) built for developers who want...
Top 3 Free WAFs for Developers in 2025 (with Setup Guide)
In 2025, website security is no longer optional — it’s a must-have for developers launching even the...
Why Choose SafeLine? Discover the Secrets of a Top Web Application Firewall
In today's digital world, cybersecurity has become a critical concern for every business. Whether you...
How SafeLine WAF Stops Bots: Inside Its Rate Limiting Engine
In the ever-evolving landscape of web security, rate limiting has become a fundamental technique to...
Deploy And Configure An Azure Firewall Instance.
Azure Firewall is a managed, cloud-based network security service that protects Azure Virtual Network...
A User-Friendly Web Security WAF Product - Safeline
In today's cybersecurity landscape, Web Application Firewalls (WAFs) play a crucial role. They not...
Why Everyone’s Talking About SafeLine — The Most Powerful Free WAF from Asia
From SQL injection to bot attacks, protecting websites is no longer optional — it’s essential. But...
Proxmox Network Storage: Firewall Rules
In this article, we walk through the process of setting up network storage for Proxmox servers using a NAS, secured with VLANs and custom firewall rules. We explore how to create firewall aliases for easier management, configure rules for Proxmox ISO storage and backups, and secure access for virtual machines, mobile devices, and media storage. This step-by-step guide ensures that the NAS is isolated and accessible only to the devices that need it, laying the groundwork for more advanced configurations in the next article, where we'll dive into mounting external drives and further restricting Samba shares.
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Debian 12 … is amazing! How to: Create your custom codehouse #4 [Security Mechanisms Against Network-Based Attacks]
I have made the decision to split the broad topic "Debian security mechanisms and how to administer...
Firewall Testing 101: How to Secure Your Network and Block Cyber Threats
Discover how to test and secure your firewall with this comprehensive guide. Learn practical steps to identify vulnerabilities, enhance network protection, and ensure your firewall effectively defends against cyber threats. Perfect for beginners and seasoned network admins alike!
Phantom DNS Query to GCP VM Metadata Service in My AWS Workload 👻 — Revealed by Route 53 Resolver Logging 🔍
I Found Suspicious DNS Calls on AWS I was debugging flaky outbound calls from an AWS...
Setup firewall on Alpine with nftables
# Install nftables doas apk add nftables # List tables (default table is `inet filter`) doas nft...
Open Text Shield (OTS)
Open Text Shield (OTS) is an open-source, real-time, high-performance filtering and classification...
How I Secured My Self-Hosted Coolify Server With CrowdSec Firewall (Step-by-Step Guide)
Are you self-hosting Coolify as a Vercel or Netlify alternative? It’s an awesome platform, but...
Firewall Policies & NAT: Mastering Security and Network Flow
In the digital battlefield of cloud computing, firewalls stand as the first line of defense,...
Configuring Cisco firewall in Linux machine with Minicom
How to configure Cisco device in Linux machine with Minicom? You need installed Minicom utility, C-13...
Firebox T45 vs Firebox T40: WatchGuard Solutions for Small and Medium-Sized Enterprises
Selecting a suitable firewall is important for businesses of any size, and WatchGuard presents...
PHP + ip2location = PHPFirewall
I wrote a firewall application using ip2location.io lite/API that can be implemented in any...
Iptables
O Iptables é usado para configurar, manter e inspecionar as Tables (tabelas) das regras de filtro de...
Homemade application firewall for Linux
Firewalls on Linux normally work on network interfaces, managing and controlling the networking...
Setting Up A VPC And Firewall In Linode (Akamai)
Your servers are spiking and you need to be able to cope without breaking the bank. Let’s move you to...
Networking Fundamentals: Firewall
Firewall: Beyond the Basics - A Production-Grade Deep Dive Introduction Last...
Creating a Lightweight Linux Firewall with UFW and fail2ban
As a system administrator or developer, securing your Linux server is non-negotiable. In this guide,...
How to recover and update Proxmox 8 firewall configuration in SQLite when you locked yourself out
TLDR The firewall config is not in /etc/pve/firewall/cluster.fw but in a SQLite Database...
Managing traffic using iptables firewall
iptables is a powerful firewall that allows you to set up rules to control incoming, outgoing, and...
Linux Firewall: Blocking a lot with a little
I have a need to block a large list of ever changing IP addresses from servers and systems I...
Fortify Your Network with Optimal IPTables Rules for Cybersecurity
I’ve recently developed a comprehensive IPTables configuration designed to safeguard your systems...
UFW(Uncomplicated Firewall)
UFW program for managing a netfilter firewall. To install ufw sudo apt install ufw systemctl...
Configuring network access with Cisco ASA via minicom utility
Configuring Cisco ASA 5500-series as network gateway and share internet access to users through local...