Criminal (failed) connection attempts are not shown in the security log

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augur
Posts: 11
Joined: Tue Jun 04, 2019 6:09 am

Criminal (failed) connection attempts are not shown in the security log

Post by augur » Sat May 15, 2021 12:47 pm

Hi,

I am using Softether (Bridge) to connect two homes together. In the server log I can see connection attempts from unknown IPs/Domains but they are not listed in the security log. As I like to setup fail2ban its look strange as the guide I found here in the forum is based on entries in the security log.

Do anybody knows what is behind that? Is this perhaps a port scan only?

Regards,
Nils

2021-05-11 00:14:41.659 On the TCP Listener (Port 5555), a Client (IP address 185.202.2.147, Host name "185.202.2.147", Port number 65224) has connected.
2021-05-11 00:14:41.659 For the client (IP address: 185.202.2.147, host name: "185.202.2.147", port number: 65224), connection "CID-759" has been created.
2021-05-11 00:14:41.659 Connection "CID-759" has been terminated.
2021-05-11 00:14:41.659 The connection with the client (IP address 185.202.2.147, Port number 65224) has been disconnected.
2021-05-11 00:45:09.137 On the TCP Listener (Port 5555), a Client (IP address 205.185.127.25, Host name "serveroperations.com", Port number 45142) has connected.
2021-05-11 00:45:09.137 For the client (IP address: 205.185.127.25, host name: "serveroperations.com", port number: 45142), connection "CID-760" has been created.
2021-05-11 00:45:09.137 Connection "CID-760" has been terminated.
2021-05-11 00:45:09.137 The connection with the client (IP address 205.185.127.25, Port number 45142) has been disconnected.
2021-05-11 02:00:51.466 On the TCP Listener (Port 5555), a Client (IP address 185.219.52.168, Host name "185.219.52.168", Port number 63900) has connected.
2021-05-11 02:00:51.466 For the client (IP address: 185.219.52.168, host name: "185.219.52.168", port number: 63900), connection "CID-761" has been created.
2021-05-11 02:00:51.476 Connection "CID-761" has been terminated.

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