Based on our record, OpenVAS should be more popular than Ossec. It has been mentiond 6 times since March 2021. 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.
I'd take it one step further and install OSSEC as well. It can be configured to run as a local daemon and report suspicious activity, and also intervene. So if somebody is brute-forcing the login on your web page, it'll create a burst of 401s which OSSEC will detect in the logs and block the offender for X minutes/hours. Source: over 2 years ago
Otherwise your on the right path checkout the open source Greenbones OpenVAS (this was Nessus before they closed source and became corporate) or Project Discovery Nuclei. Source: about 1 year ago
Personally, I was lucky enough to get a license to Nessus for my own scanning, however you can use OpenVAS for some free to scan. Scanners aren't 100% correct no matter where you go but it'll give you some things to look at. OpenVAS. Source: almost 2 years ago
Https://openvas.org/ OpenVAS is free and fairly capable. It might struggle cpu on a pi... Might need quite a bit of ram, but I'm hoping you've got some beefier kit in your stack. Source: about 2 years ago
Maybe OpenVAS would fill the bill. It’s been on my list of things to check out. Source: over 2 years ago
OpenVAS - https://openvas.org Try it first, its free, just download a prebuilt VM and you're off and running. I found it valuable for my clients. Source: over 2 years ago
snort - Snort is a free and open source network intrusion prevention system.
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
AIDE - AIDE (Advanced Intrusion Detection Environment) is a file and directory integrity checker.
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...