[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [FW1] Is this a DOS - port 36121
Hi all, We are running FW1 ver 4.1 and running inbound security servers for SMTP, outbound HTTP and FTP. Lately, we have a lot of connection attempts coming from internet to the external IP of our firewall using 36121 as service. In the log file, the entries read: Action Service Src Dst Rule Src port Info. drop 36121 a.b.c.d f.w.I.P 4 51564 len 44 reject 36121 a.b.c.d f.w.I.P 0 51564 message SYNDefender warning: SYN->SYN-ACK->Timeout This is usually before a SMTP connection to our inbound smtp server. I've check the port and it doesn't seems to related to any Trojan. Any advice welcome. Ken ================================================================================ To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================================================
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