Nginx opens lot of sessions | FIN_WAIT_2 & TIME_WAIT

[SeimusS]

Hello all,

First let me thank you for NPM, I am a beginner in regards of proxies/reverse proxies and this project made my life easier.

I have however a question/observation which I try to understand.

When I do a connection for example from my PC, thru NPM towards a proxied destination. I can see on the FW that Nginx opens a lot of session, in hundreds, on the firewall with state FIN_WAIT_2 & TIME_WAIT.

My PC, NPM and Destination server are all in different VLANs.

Is this behavior normal?

I would expect that only 1 session would be opened from Nginx towards the destination server. I don't understand why I see so many sessions being opened in this state.

Regards,
S.