Hi,
I want to protect my PureFTPd server. I have the following setup:
I forward the PureFTPd syslogs to the firewall (/var/log/pureftpd.log). The syslog works fine. I can see on the firewall the failed logins. I installed the security/sshguard-ipfw port.
I adjusted the start script from sshguard as follows:
/usr/local/etc/rc.d/sshguard
In my opinion, now sshguard should check the PureFTPd log and add an IPFW rule as soon as there are more than four failed login attemps. But I never get an IPFW rule, if I list the rules with:
In the log I can see that sshguard starts up
I also tried to adjust syslog.conf But also there the sshguard does never add an IPFW rule.
Thanks for your help.
Cheers Daniel
I want to protect my PureFTPd server. I have the following setup:
Code:
| Internet | ------ | Transparent Firewall | ------ | Pureftpd server |I forward the PureFTPd syslogs to the firewall (/var/log/pureftpd.log). The syslog works fine. I can see on the firewall the failed logins. I installed the security/sshguard-ipfw port.
I adjusted the start script from sshguard as follows:
/usr/local/etc/rc.d/sshguard
Code:
#!/bin/sh
#-
# Copyright (c) 2012 iXsystems, Inc.
# All rights reserved.
#
# Written by: Xin Li <delphij@FreeBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD: ports/security/sshguard/files/sshguard.in,v 1.3 2013/02/01 15:41:58 svnexp Exp $
#
# PROVIDE: sshguard
# REQUIRE: LOGIN cleanvar
#
# Add the following lines to /etc/rc.conf to enable sshguard:
# sshguard_enable (bool): Set to "NO" by default.
# Set it to "YES" to enable sshguard
# sshguard_pidfile (str): Path to PID file.
# Set to "/var/run/sshguard.pid" by default
# sshguard_watch_logs (str): Colon splitted list of logs to watch.
# Set to "/var/log/auth.log:/var/log/maillog"
# by default.
# The following options directly maps to their command line options,
# please read manual page sshguard(8) for detailed information:
# sshguard_blacklist (str): [thr:]/path/to/blacklist.
# Set to "40:/var/db/sshguard/blacklist.db"
# by default.
# sshguard_safety_thresh (int): Safety threshold. Set to "40" by default.
# sshguard_pardon_min_interval (int):
# Minimum pardon interval. Set to "1200"
# by default.
# sshguard_prescribe_interval (int):
# Prescribe interval. Set to "420" by
# default.
# sshguard_whitelistfile (str): Path to the whitelist.
# Set to "/usr/local/etc/sshguard.whitelist"
# by default.
. /etc/rc.subr
name="sshguard"
rcvar="sshguard_enable"
command="/usr/sbin/daemon"
actual_command="/usr/local/sbin/${name}"
procname="${actual_command}"
load_rc_config $name
: ${sshguard_enable="NO"}
: ${sshguard_pidfile="/var/run/${name}.pid"}
: ${sshguard_blacklist="40:/var/db/sshguard/blacklist.db"}
: ${sshguard_safety_thresh="4"}
: ${sshguard_pardon_min_interval="1200"}
: ${sshguard_prescribe_interval="420"}
: ${sshguard_whitelistfile="/usr/local/etc/sshguard.whitelist"}
: [color="Red"]${sshguard_watch_logs="/var/log/pureftpd.log"}[/color]
pidfile="${sshguard_pidfile}"
sshguard_watch_params=`echo ${sshguard_watch_logs} | tr : \\\n | sed -e s/^/-l\ /g | tr \\\n \ `
start_precmd="${name}_prestart"
command_args="-cf ${actual_command} -b ${sshguard_blacklist} ${sshguard_watch_params} -a ${sshguard_safety_thresh} -p ${sshguard_pardon_min_interval} -s ${sshguard_prescribe_interval} -w ${sshguard_whitelistfile} -i ${sshguard_pidfile}"
sshguard_prestart()
{
mkdir -p `dirname ${sshguard_blacklist##*:}`
[ -e ${sshguard_whitelistfile} ] || touch ${sshguard_whitelistfile}
}
run_rc_command "$1"In my opinion, now sshguard should check the PureFTPd log and add an IPFW rule as soon as there are more than four failed login attemps. But I never get an IPFW rule, if I list the rules with:
ipfw list.In the log I can see that sshguard starts up
Code:
sshguard[71977]: Started successfully [(a,p,s)=(4, 1200, 420)], now ready to scan.Thanks for your help.
Cheers Daniel
