Software Alternatives, Accelerators & Startups

OPNsense VS Icinga

Compare OPNsense VS Icinga and see what are their differences

OPNsense logo OPNsense

OPNsense® you next open source firewall. Free Download. High-end Security Made Easy™. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.

Icinga logo Icinga

Icinga is a fork of Nagios and is backward compatible.
  • OPNsense Landing page
    Landing page //
    2021-12-26
  • Icinga Landing page
    Landing page //
    2023-10-23

OPNsense videos

Introduction to OPNSense firewall the PFsense fork. Overview

More videos:

  • Review - pfSense vs OPNsense
  • Review - ✅ OPNsense Install - not what i was expecting!

Icinga videos

Bernd Erk - Why favour Icinga over Nagios

More videos:

  • Review - Using The Icinga Linux Monitoring Wizard

Category Popularity

0-100% (relative to OPNsense and Icinga)
Operating Systems
100 100%
0% 0
Monitoring Tools
0 0%
100% 100
Perimeter Security And Firewalls
Log Management
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare OPNsense and Icinga

OPNsense Reviews

Best pfSense Software Alternatives and Competitors
OPNsense is the best open-source and free firewall alternative to pfSense Software. OPNsense is a user-friendly, open-source, FreeBSD firewall and router. Most of the same capabilities are available in this fork of pfSense Software. It distinguishes itself from other firewalls by combining highly sophisticated features with an open-source system. First, the OPNsense firewall...
The Best Open Source Router OS Software for Large or Small Networks
OPNsense is an open-source router OS software that is based on FreeBSD. It is designed to be used as a firewall, router, and VPN gateway, and it includes a range of advanced networking features. OPNsense is a fork of the pfSense project, and it is actively maintained by the OPNsense community.
Best free Linux router and firewall distributions of 2023
OPNsense makes the top of the list in 2023 because, for the last four years of maintaining this list, it has proved to be one of the most quickly developing operating systems on the market. It's an easy to use, mature system with a slick UI. OPNSense includes most, if not all, features found in expensive enterprise commercial firewalls. It has the quality of a commercial...
Source: teklager.se
11 Best pfsense Alternatives To Secure Your Network
By screening out unnecessary network traffic and malicious apps, firewall software protects networks and computers from attacks. For safeguarding your secure network from malware attacks and unauthorized access, OPNsenseis arguably top on our list of pfSense alternatives.
Top 7 pfSense Alternatives
OPNSense is a rising star in the router software arena. It is powered by HardenedBSD, which is a security-oriented fork of FreeBSD. Its current development pace is rapid, and it’s packed with features. It also has one of the best user interfaces of all of these options. Like a lot of these options, its primary weakness is its Wi-Fi support. A lot of OPNSense users started...

Icinga Reviews

The Best Open Source Network Monitoring Tools in 2023
Description: Icinga is an open source network monitoring tool that measures network availability and performance. Through a web interface, your enterprise can observe hosts and applications across your entire network infrastructure. The tool is natively scalable and can easily be configured to work with every kind of device. There are also a handful of Icinga modules for...
10 Best Zabbix Alternatives
Icinga is a popular enterprise-grade open-source tool for IT infrastructure and application monitoring. It checks the availability of your network resources, notifies you of outages, and generates performance data for reporting. Icinga was originally created as a fork of the Nagios Core application in 2009. The goal is to improve upon the groundwork laid by Nagios, including...
10 Best Open Source Monitoring Software for IT Infrastructure
Icinga, which began as Nagios Fork in 2009, got freed from the constraints of a fork and crafted Icinga 2, which is faster, easier to configure, more comfortable to scale significantly better.
Source: geekflare.com
13 Best Nagios Alternatives for Networks, Servers, IT Systems Monitoring
Icinga2 started as a fork of Nagios and became an expansive network monitoring solution even for enterprise-grade needs.
Best Open Source Network Monitoring Tools and Software (Linux/Windows)
The fact that you still have to use text-based configuration files coupled with the robustness of Icinga, means that there is also a steep learning curve for Icinga as with Nagios. On the plus side, Icinga has very detailed documentation to help you along the way.

Social recommendations and mentions

Based on our record, OPNsense seems to be a lot more popular than Icinga. While we know about 94 links to OPNsense, we've tracked only 8 mentions of Icinga. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OPNsense mentions (94)

  • How to bypass public IP and NAT
    Firmware's like Asuswrt-Merlin or OpenWRT can support dynamic-dns, or you can do like I do and run something like OPNsense in an x86 VM with a NIC passed through, or buy an inexpensive firewall appliance (up to 500mbps/1gbps/10gbps). Source: 6 months ago
  • Stop ISP from getting into my Router
    The easiest solution is to buy your own router, set it up, disable the router functionality on the Fritzbox 7590 and plug your router into it. It'll be cheaper and easier than a Cisco Firewall, but if you want to go the dedicated firewall route then I would recommenced OPNsense. Source: 6 months ago
  • OpenBSD Innovations
    BSDs may not have a significant presence on desktops, but they're well known in the networking world for their reliability. They also were the foundation used to build OSes for specific applications. OpnSense and XigmaNAS, for example, are two excellent FreeBSD based applications aimed at firewalling/security and NAS/services. https://opnsense.org/ https://xigmanas.com/xnaswp/. - Source: Hacker News / 10 months ago
  • Switches That You Actually Own
    For switches? OpenWrt supports a few models toward the lower end, and SONiC support a bunch at the higher-end datacenter ToR market, but none of these options are SME production-ready like Linux servers or OPNsense firewalls. Source: 11 months ago
  • Having to pay postage to ship back a DoA product sucks from a customer perspective
    That’s a stupid policy, and it looks like one of my UDMs is defective. I’m an idiot for not just buying good quality open boxes and putting https://opnsense.org/ on them. 🤦🏻‍♂️. Source: 12 months ago
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Icinga mentions (8)

  • What do you use to visualize your topology?
    Two manually updated svg maps on nagvis that integrate with our icinga checks, one for the transport system nodes and one for the routers. Source: about 1 year ago
  • SSLPing permanently goes out of service
    Might be a bit of an overkill if you just want to check the certificates, but I'm using Icinga (formerly known as Nagios) to keep track of all of the systems - including webpage certificates. Source: about 2 years ago
  • What "legacy" software are you still forced to use in 2022 that you wish would die?
    Some of it can be migrated rather easily to Icinga https://icinga.com/. Icinga forked from Nagios many years ago, they rewrote the engine and have done a nice WebUI. It is able to support e.g. Business branches using "satellites" that act as proxy to the main server/ server cluster. I was one of the two guys doing the setup for a company with multiple branch offices/ factories and during the time I was there it... Source: over 2 years ago
  • Is there any program that can alert you of a stalled Plex Server?
    Personally I run https://icinga.com/ (to all my services, including Plex) and it polls every 5sec and after 5 fails in a row it sends me an email. Source: over 2 years ago
  • Linux is dead, long-live Docker monoculture
    Fast forward 12 years and I have Icinga2 collectors in each datacenter using check_by_ssh to run check_systemd, all front-ended by Thruk. The TIG stack is something on my list of things to look into at some point, but with Dynatrace available to do all the fancy application monitoring, there's no rush. Source: almost 3 years ago
View more

What are some alternatives?

When comparing OPNsense and Icinga, you can also consider the following products

pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more

Zabbix - Track, record, alert and visualize performance and availability of IT resources

MikroTik RouterOS - The main product of MikroTik is a Linux-based operating system known as MikroTik RouterOS.

Nagios - Complete monitoring and alerting for servers, switches, applications, and services

OpenWrt - OpenWrt is an open-source firmware based on Linux for wireless routers

Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.