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Special Forums News, Links, Events and Announcements Software Releases - RSS News Port Scan Attack Detector 2.1.2 (Default branch)
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Old 04-04-2008
Port Scan Attack Detector 2.1.2 (Default branch)
The Port Scan Attack Detector (psad) is acollection of three system daemons that aredesigned to work with the Linux iptablesfirewalling code to detect port scans and othersuspect traffic. It features a set of highlyconfigurable danger thresholds (with sensibledefaults), verbose alert messages, email alerting,DShield reporting, and automatic blocking ofoffending IP addresses. Psad incorporates many ofthe packet signatures included in Snort to detectvarious kinds of suspicious scans, and implementsthe same passive OS fingerprinting algorithm usedby p0f.License: GNU General Public License (GPL)Changes:
A bug was fixed so that kernel timestamps are notincluded in iptables log prefixes that containspaces like "[ 65.026008] DROP". Non-resolved IPaddresses are now skipped. p0f output in --debugmode was improved to display when a passive OSfingerprint cannot be calculated based on iptableslog messages that include TCP options (i.e. with--log-tcp-options when building a LOG rule on theiptables command line).Image

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LEARN ABOUT CENTOS

kmsgsd

KMSGSD(8)                                                     System Manager's Manual                                                    KMSGSD(8)

NAME

       kmsgsd - separates iptables messages from all other kernel messages.

SYNOPSIS

       kmsgsd

DESCRIPTION

       kmsgsd  reads  messages  from  the  /var/lib/psad/psadfifo  named  pipe  and prints any firewall related log messages to the psad data file
       "/var/log/psad/fwdata".  psad cannot detect port scans or other suspect traffic without kmsgsd running on the  machine.   kmsgsd  uses  the
       psad.conf configuration file which by default is located at /etc/psad/psad.conf, but a different path can be specified on the command line.

OPTIONS

       -c <config-file>
              Specify path to config file instead of using the default configuration file /etc/psad/psad.conf.

       -D     Dump the configuration values that kmsgd derives from /etc/psad/psad.conf (or other override files) on STDERR.

       -h     Display usage information and exit.

       -O <config-file>
              Override  config variable values that are normally read from the /etc/psad/psad.conf file with values from the specified file.  Mul-
              tiple override config files can be given as a comma separated list.

SEE ALSO

       psad(8), psadwatchd(8),

AUTHOR

       Michael Rash (mbr@cipherdyne.org)

       This manual page was written by Daniel Gubser <daniel.gubser@gutreu.ch> for the Debian GNU/Linux system (but may be used by others).

DISTRIBUTION

       psad is distributed under the GNU General Public License (GPL), and the latest version may be downloaded from http://www.cipherdyne.org

Debian GNU/Linux                                                   November 2002                                                         KMSGSD(8)