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A DoS attack on the TCP Listener (port 443) has been detecte

Posted: Thu Oct 08, 2015 6:11 pm
by Mada
Why am I getting this log entry's? Is it something to worry about?

Thanks,

2015-10-08 00:44:02.703 On the TCP Listener (Port 443), a Client (IP address 208.100.26.233, Host name "ajax.dewahost.net", Port number 55250) has connected.

2015-10-08 00:44:02.703 For the client (IP address: 208.100.26.233, host name: "ajax.dewahost.net", port number: 55250), connection "CID-103-7522F0E489" has been created.

2015-10-08 00:44:02.828 SSL communication for connection "CID-103-7522F0E489" has been started. The encryption algorithm name is "RC4-MD5".


2015-10-08 00:44:02.859 A DoS attack on the TCP Listener (port 443) has been detected. The connecting source IP address is 208.100.26.233, port number is 55799. This connection will be forcefully disconnected now.

2015-10-08 00:44:03.031 Connection "CID-103-7522F0E489" terminated by the cause "A client which is non-SoftEther VPN software has connected to the port." (code 5).

2015-10-08 00:44:03.031 Connection "CID-103-7522F0E489" has been terminated.

Re: A DoS attack on the TCP Listener (port 443) has been det

Posted: Thu Oct 22, 2015 6:39 am
by thisjun
I think a port scanner.