• Installation
• Backup configuration to Nextcloud
• DHCP and Unbound
• ACME Client (Let's Encrypt)
• User Management and LDAP
• OpenVPN
• Apcupsd (USV Management)

OPNsense is an open-source, FreeBSD-based firewall and routing platform. Developed as a fork of pfSense, it aims to provide powerful network security and routing solutions for various environments, from home networks to enterprise systems.

Key Features:

1. Firewall:

• Stateful firewall capabilities to monitor and control network traffic.
• Supports advanced features like GeoIP blocking, which restricts access based on geographic location.

1. Routing:

• Robust routing protocols including OSPF, BGP, and RIP for dynamic network management.
• Load balancing and failover capabilities ensure network reliability.

1. VPN:

• Comprehensive VPN support, including IPsec, OpenVPN, and WireGuard.
• Secure remote access and site-to-site connectivity options.

1. Intrusion Detection and Prevention (IDS/IPS):

• Integrated Suricata engine for real-time network threat detection and prevention.
• Extensive rule sets and automatic updates for enhanced security.

1. Web Proxy and Content Filtering:

• Built-in proxy server with caching capabilities to improve internet speed and bandwidth usage.
• Content filtering to block undesirable websites and ensure compliance with organizational policies.

1. User-Friendly Interface:

• Modern, intuitive web interface for easy configuration and management.
• Comprehensive dashboard with real-time network monitoring and reporting.

1. Updates and Plugins:

• Regular updates to ensure security and functionality.
• Wide range of plugins to extend features, such as network monitoring, antivirus, and two-factor authentication.

1. High Availability:

• Supports CARP (Common Address Redundancy Protocol) for high availability setups.
• Ensures continuous network operation even during hardware failures.

1. Acme Client for Let's Encrypt Certificates and Certificate Management:

• Integrated Acme client to easily obtain and renew Let's Encrypt SSL/TLS certificates.
• Comprehensive certificate management features to handle various security needs.

1. Apcupsd for UPS Management:

• Supports Apcupsd to manage APC UPS devices.
• Ensures safe shutdown and power management during power outages.

Advantages:

• Security: Strong focus on network security with continuous updates and community-driven improvements.
• Flexibility: Suitable for various network environments, from small home networks to large enterprises.
• Community and Support: Active community and professional support options provide extensive resources for users.

Conclusion: OPNsense is a versatile and robust platform that combines advanced firewall and routing features with user-friendly management. Its extensive capabilities, including Let's Encrypt certificate management and UPS management, and strong community support make it an excellent choice for anyone looking to secure and optimize their network infrastructure.