Thiết lập pfSense Firewall – Bảo vệ hệ thống mạng hiệu quả

pfSense Firewall – Secure, Flexible, and Cost-Effective Network Protection for Businesses

In an increasingly complex cybersecurity landscape, businesses can no longer overlook the importance of building a strong, stable, and flexible firewall system to protect and control inbound and outbound data traffic. pfSense Firewall is an extremely powerful open-source solution that can replace dedicated routing devices at a significantly lower cost.

TSF Services delivers end-to-end pfSense firewall deployment services, from system design consulting to installation, configuration, and user training – suitable for small offices, multi-branch chains, and large-scale enterprises.

What is pfSense Firewall?

pfSense is an open-source firewall and router operating system based on FreeBSD, featuring a user-friendly web-based management interface and highly flexible configuration capabilities. More than just a firewall, pfSense can also function as a router, VPN server, proxy, load balancer, and provide many advanced security features.

🔹 Key Advantage: No licensing fees, supports deployment on legacy hardware, making it ideal for businesses looking to optimize costs while maintaining strong network security.

Key pfSense Firewall Features Deployed by TSF Services

🔄 Replacement for Routers / Layer 3 Switches

Internal routing between VLANs, network segmentation by departments (Sales, HR, IT, Camera, etc.)
Bandwidth control and access restriction between subnets
Cost-effective replacement for expensive Layer 3 switches using software-based solutions on standard PC hardware

🔐 Site-to-Site VPN – Secure Multi-Branch Connectivity

Connect branches, warehouses, and retail locations to headquarters via IPsec or OpenVPN
Secure data transmission with stable performance
Compatible with MikroTik, FortiGate, and other VPN-capable devices

🧑‍💻 Client-to-Site VPN with LDAP / Active Directory Integration

Employees can securely connect from home or remote locations
User authentication integrated with LDAP or Active Directory, eliminating manual account creation
Granular access control by user groups (Accounting, Engineering, Management, etc.)

🌐 Squid Proxy – Internet Access Management

Deploy Squid Proxy + SquidGuard for web content filtering
Block inappropriate websites such as social networks, streaming, and gaming
Apply policies based on IP, user, or access time
Enable detailed access logs for monitoring and reporting

⚖️ Load Balancing & Failover

Utilize multiple internet connections simultaneously to increase total bandwidth
Automatic failover when one ISP link goes down
Ideal for businesses requiring high stability for cloud applications, Zoom meetings, and online operations

💻 Firewall Built from Legacy PCs – Maximum Cost Savings

Reuse old PCs by upgrading RAM and storage to deploy pfSense
TSF Services evaluates hardware, recommends optimal configurations, and installs complete firewall features
Eliminates the need for expensive commercial firewall appliances while maintaining high performance

pfSense Firewall Deployment Packages by TSF Services

Service Package	Description	Reference Cost
🔹 Basic Package	pfSense installation, routing, NAT, DHCP, VLAN segmentation	From 3,500,000 VND
🔸 VPN Package	Adds site-to-site or client-to-site VPN, LDAP integration	From 5,500,000 VND
⚙️ Full Package	Proxy, load balancing, VPN, web filtering, logging	From 7,500,000 VND
🔧 Firewall Build from Legacy PC	RAM/SSD upgrade + pfSense installation	From 4,000,000 VND (hardware upgrades not included if required)

📍 TSF Services can deploy on-site, remotely, or build the firewall system at our workshop and deliver it ready-to-use.

Why Choose TSF Services as Your pfSense Deployment Partner?

Deep expertise in networking, security, and routing
Extensive hands-on experience with offices, retail chains, and factory environments
Structured consulting, fast deployment, and optional periodic maintenance
Integration with additional solutions: Synology NAS, Zabbix monitoring, CCTV systems, and more
Post-deployment technical support with 30-day system warranty

Conclusion

pfSense Firewall is a powerful, flexible open-source firewall solution suitable for businesses of all sizes. Its ability to replace Layer 3 routing devices, integrate secure VPNs, provide advanced web filtering, and run on legacy hardware delivers significant cost savings.

TSF Services is committed to delivering optimized, secure, and professional pfSense deployments tailored to your existing infrastructure, helping businesses manage, secure, and connect their networks efficiently and reliably.

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