I've recently built a server and decided to use UFW for the first time. I was investigating a possible connection issue (turns out it was their end) but I noticed that the logs are full of entries saying that traffic was blocked on port 80 and port 443 - rather worrying for a web server. Checking ufw status confirms that all traffic on these ports is allowed - additionally, we haven't had anyone report problems connecting to the server.
I found this other question: UFW logs blocked request on open port, what am I missing? - it set my mind at ease, but I'd prefer to be able to not have these "FIN ACK" messages in my logs so I can discern legitimate entries more clearly.
Other than simply piping through grep, is it possible to selectively filter entry into the log from a UFW config setting?