However, sometimes you are in a circumstance where it is not feasible to have a separate machine, or maybe the firewall box that you are using is powerful enough to add an active network monitoring function to it. Maybe the most optimal way to setup ntopng is to separate it from the firewall and use a dedicated box to record and analyze network traffic by using a port mirror. This all makes it useless to put in production environments. Also in the previous version of pfsense, which had ntopng 3.8, geolocation data was not being reported correctly. In the latest pfsense 2.5 release, they updated ntopng to 4.2 which is great, but it contains a lot of bugs, sometimes ntopng keeps restarting on itself, other times it seems very slow, and I personally faced an issue that whenever an ntopng service restart occurs, all the package's config gets wiped out, so any modifications you make, like interface rename or adding alerts endpoints and recipients gets lost on next service restart. Unfortunately, the pfsense port of ntopng package which is installed through the gui package manger has been broken for a long time. It is available on pfsense firewall through the builtin package manager. ![]() Ntopng is a great tool for diagnosing and monitoring your network.
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