Sniffnet – monitor your Internet traffic(github.com)198 points by Brajeshwar 1 year ago | 78 comments
OpenNMS: Visualize and monitor everything on your local and distributed networks(opennms.com)74 points by teleforce 2 years ago | 38 comments
Show HN: I built a tool that watches webpages and exposes changes as RSS(sitespy.app)291 points by vkuprin 7 months ago | 75 comments
Technitium DNS Server: Self host a DNS server for privacy and security(technitium.com)83 points by thunderbong 2 years ago | 59 comments
Show HN: Netrinos – A keep it simple Mesh VPN for small teams(netrinos.com)75 points by pcarroll 10 months ago | 43 comments
Show HN: Statusduck – Website monitoring tool where the data is public(statusduck.io)64 points by duckyio 2 years ago | 36 comments