ConfigServer Community Forum

I write this post because I have a problem I can not solve despite having made ​​the changes proposed in many other posts on the forum.
My server is set up to work in pure-ftpd
Some users are blocked firewall of some not
The changes that I have made ​​I have taken from this post:
viewtopic.php?f=6&t=4091&hilit=ftp+connection+tracking

Does anyone have the same problem or has found a way to solve it?

Thank you all for any information that I want to give

If they are being blocked with too many connections then it has nothing to do with the post you references but your setting for CT_LIMIT. You either need to raise CT_LIMIT, disable it or try using CT_SKIP_TIME_WAIT.