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Full Discussion: What I think is a DoS attack
Special Forums Cybersecurity What I think is a DoS attack Post 302390618 by dpc.ucore.info on Thursday 28th of January 2010 11:27:14 AM
Old 01-28-2010
Is it coming from one or multiple sources? You could detect IPs from which such storms come from and block it on the firewall.
 

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ARNO_FWFILTER(1)														  ARNO_FWFILTER(1)

NAME
arno-fwfilter - a filter script to make iptables firewall logs more readable for humans SYNOPSIS
arno-fwfilter [OPTIONS] DESCRIPTION
arno-fwfilter is a pipe filter script to make the firewall-log better readable. Some usage examples are: Static firewall log filtering: arno-fwfilter < logfile Realtime firewall logging on tty10: tail --follow <logfile> | arno-fwfilter >/dev/tty10 & OPTIONS
--help, -h Print the available options. --html-output, -o Use basic HTML to format the output --no-locations, -l Disable to (try to) obtain the IP's geographical location. By default, http://www.hostip.info/ is visited to get this information. --no-colors, -c Disable the use of colors in the output. --single-line, -s Put all information about an event in a single line SEE ALSO
iptables(8), arno-iptables-firewall(8) The http://rocky.eld.leidenuniv.nl/ web site. AUTHOR
arno-fwfilter was written by Arno van Amersfoort <arnova@rocky.eld.leidenuniv.nl>. This manual page was written by Michael Hanke <michael.hanke@gmail.com>, for the Debian project (but may be used by others). Michael Hanke September 2005 ARNO_FWFILTER(1)
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