Hi friends,
I tell you immediately that I am not clear whether the matter concerns Shorewall rather than Fail2ban, so you have pity for me :-)

I've configured ProFtpd to connect by tls (SSLv3 TLSv1 -> Letsencypt certificate) and if I stop shorewall the "sftp" connection works fine,
but with Shorewall up, it DROP the connection:

Aug 8 18:50:10 server kernel: [16438563.572121] Shorewall:net-fw:DROP:IN=eth0 OUT= MAC=00:50:56:3c:a8:50:00:08:e3:ff:fd:90:08:00 SRC= DST=44.320.032.111 LEN=60 TOS=0x00 PREC=0x00 TTL=56 ID=63283 DF PROTO=TCP SPT=33175 DPT=55298 WINDOW=29200 RES=0x00 SYN URGP=0

Now I wondering where is the problem,

I don't know if is Fail2ban to tell to Shorewall to Drop this connection or if I should open a specific question on Shorewall ML.

Many thanks to all!


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