<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/3.28.3"> </HEAD> <BODY> Hi all, Three days ago had a new internet connection installed and today have checked the logs on my router. I was a little concerned to find 4-5 TCP/UDP port scans followed by 15-20 SYN floods occuring about every 20 minutes for the past THREE days! With my admittedly limited knowledge of computer security I already know these are consistent with DOS attacks but why would anyone be trying to block my services? I also came home today to find my router had been knocked offline so had to re-start it to restore my internet connection. Should I be concerned or are these just random attacks that are being handled safely by my router? If not then how do I go about stopping these and monitoring my system for something a little more sinister. I have installed and monitored Wireshark for a while this evening but am not really sure what I am looking for. Any help/advise would be fantastic. Ade </BODY> </HTML>