Commit 1123e00c by Heiko Kokemoor

prox-fire verbessert, öffent prox-prot nur für den per ssh eingeloggten. Jeder U…

…ser muss es für sich selbst freischalten.
1 parent 5bdadb10
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Das script öffnet und schließt einen Port in einer iptables basierende Firewall durch hinzufügen bzw. löschen einer Regel.
Es sollte in
/usr/local/sbin/
installiert werden.
#!/bin/bash
# <prox-fire Proxmox-Port öffnen und schließen>
# version: 0.2
# Copyright (C) <2013> <Heiko Kokemoor>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
EXT_IFACE='eth0'
LO_EXT_IFACE='lo'
IPTABLES='/sbin/iptables'
LOGLEVELDROP='4' # 1=alert,2=critical,3=error,4=warning,5=notice,6=info,7=debug
LOGLEVELACCEPT='4'
PROXPORT='8006'
check_rule_start()
{
$IPTABLES -L|grep "tcp dpt:$PROXPORT"
}
accept_proxmox()
{
CLIENT_IP=$(echo $SSH_CLIENT | awk '{ print $1}')
CLIENT_PORT=$(echo $SSH_CLIENT | awk '{ print $2}')
printf "$CLIENT_IP\t$CLIENT_PORT" >> $OPEN_PORTS_FILE
$IPTABLES -A INPUT -i $EXT_IFACE -p tcp --dport $PROXPORT -s $CLIENT_IP -j ACCEPT
$IPTABLES -A OUTPUT -o $EXT_IFACE -p tcp --dport $PROXPORT -s $CLIENT_IP -j ACCEPT
}
drop_proxmox()
{
EI=0
EO=0
while [ $EI = 0 ] && [ $EO = 0 ]
do
$IPTABLES -D INPUT -i $EXT_IFACE -p tcp --dport $PROXPORT -j ACCEPT
EI=$?
$IPTABLES -D OUTPUT -o $EXT_IFACE -p tcp --dport $PROXPORT -j ACCEPT
EO=$?
done
}
stop_all()
{
C=0
unset L
unset Z
unset A
A=$(iptables -L -n |grep $PROXPORT |awk '{print $4}'|uniq)
while [ $C = 0 ]
do
L=$(wcalc -q $L+1)
Z[$L]=$(echo $A|cut -d' ' -f$L)
$IPTABLES -D INPUT -i $EXT_IFACE -p tcp --dport $PROXPORT -s ${Z[$L]} -j ACCEPT
$IPTABLES -D OUTPUT -o $EXT_IFACE -p tcp --dport $PROXPORT -s ${Z[$L]} -j ACCEPT
if [ -z ${Z[$L]} ]
then C=1
fi
done
}
i=$1
case $i in
start)
check_rule_start
if [ $? = 1 ]
then
accept_proxmox
fi
;;
stop)
drop_proxmox
;;
stop-all)
stop_all
;;
*)
echo $(basename $0) '[start|stop] - opens a port for the Porxmox Webinterface'
;;
esac
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