Ensure Network Continuity: OPNsense High Availability Guide

Firewalls like OPNsense are essential for IT security, but sometimes they can be too secure

For instance, if your firewall crashes then yes you have a very secure network, but now nobody can access anything

In which case you'll want to have a redundant firewall to protect against outages and help with maintenance

And in this video we’ll go over how to configure High Availability for OPNSense

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For more technical information, including commands used, check out our blog post
https://www.techtutorials.tv/sections/it-security/opnsense-redundancy/

Useful links:
https://docs.opnsense.org/manual/how-tos/carp.html
https://www.zenarmor.com/docs/network-security-tutorials/how-to-configure-ha-on-opnsense

Chapters
00:00 Intro
00:32 Assumptions
01:24 Overview
05:02 Strategy
07:11 Backup Firewall Configuration
10:09 Isolate New Firewall
12:20 Restore Firewall Configuration
15:19 Initial Changes
19:01 Configure CARP
23:43 Outbound NAT
28:00 Configure HA Link
30:01 Extra Firewall Rules
33:06 pfSync and HA sync
36:26 Initial Testing
37:28 Isolate Existing Firewall
39:15 Activate New Firewall
40:30 Test New Firewall
43:09 Reconfigure Original Firewall
46:23 Activate Backup Firewall
47:34 Configure HA Link
49:11 Configure pfSync
50:24 Extra Firewall Rules
52:15 Reboot Firewalls
01:01:06 Testing Failover
01:18:17 Automated Configuration Updates
01:22:13 Dashboard Monitoring
01:24:33 Software Updates
01:30:31 Summary

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Видео Ensure Network Continuity: OPNsense High Availability Guide канала Tech Tutorials - David McKone