PDF Guide

pfSense Firewall Setup for Small Offices

A step-by-step guide to installing and configuring pfSense on a mini PC as your office firewall — WAN setup, LAN rules, NAT, VLAN routing, and OpenVPN.

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File Format Official PDF (1.6 MB)
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Revision Updated Jul 2026
Technical Standard & Runbook

pfSense Firewall Setup for Small Offices

1. Executive Overview & Operational Context

A step-by-step guide to installing and configuring pfSense on a mini PC as your office firewall — WAN setup, LAN rules, NAT, VLAN routing, and OpenVPN.

Standard engineered by Arbre IT Support & Solutions for deployment across corporate offices, industrial manufacturing facilities in SITE & Korangi, and commercial buildings in Karachi.

2. Field Commissioning & Quality Assurance Checklist

✓ Verify primary power voltage and standby battery float voltage (13.6V - 13.8V DC).
✓ Test manual override key switches and emergency break-glass push buttons.
✓ Verify event logging timestamps against localized NTP servers (GMT+05:00 Karachi).
✓ Perform simulated AC mains power failure test and confirm minimum 4-hour battery endurance.
✓ Ensure all terminal screws are torqued to manufacturer specifications and cable glands are sealed.
✓ Verify firmware is updated to current vendor-supported release with default credentials disabled.

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