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  • pajanko

    csendes tag

    válasz pajanko #29942 üzenetére

    root@OpenWrt:~# cat /etc/firewall.user
    # This file is interpreted as shell script.
    # Put your custom iptables rules here, they will
    # be executed with each firewall (re-)start.

    BRUTEFORCE_PROTECTION_START=3
    BRUTEFORCE_DROPPORT=55555
    PROTO=tcp
    ROUTERIP=$(uci get network.lan.ipaddr)

    ########################################
    #SSH Brute Force protection on port 2222
    PROTECTEDPORT=2222
    SERVICEPORT=22
    SERVICE=SSH

    echo Enabling Brute Force protection for $SERVICE on port $PROTECTEDPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --set --name $SERVICE -j DNAT --to-destination $ROUTERIP:$SERVICEPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --update --seconds 60 --hitcount $BRUTEFORCE_PROTECTION_START --name $SERVICE -j DNAT --to-destination $ROUTERIP:$BRUTEFORCE_DROPPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --rcheck --seconds 60 --hitcount $BRUTEFORCE_PROTECTION_START --name $SERVICE -j LOG --log-prefix "BruteForce-${SERVICE} "
    ########################################

    ########################################
    #FTP Brute Force protection on port 2221
    PROTECTEDPORT=2221
    SERVICEPORT=21
    SERVICE=FTP

    echo Enabling Brute Force protection for $SERVICE on port $PROTECTEDPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --set --name $SERVICE -j DNAT --to-destination $ROUTERIP:$SERVICEPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --update --seconds 60 --hitcount $BRUTEFORCE_PROTECTION_START --name $SERVICE -j DNAT --to-destination $ROUTERIP:$BRUTEFORCE_DROPPORT
    iptables --table nat -I zone_wan_prerouting -p $PROTO --dport $PROTECTEDPORT -m state --state NEW -m recent --rcheck --seconds 60 --hitcount $BRUTEFORCE_PROTECTION_START --name $SERVICE -j LOG --log-prefix "BruteForce-${SERVICE} "
    ########################################

    ########################################
    #Block URL on certain time for specified IP
    #
    #URL_STRING=facebook.com
    #LOCAL_IP=192.168.1.188
    #TIME_START=10:00
    #TIME_END=16:00
    #
    #echo Blocking $URL_STRING from $LOCAL_IP at time interval $TIME_START - $TIME_END
    #iptables -I FORWARD -s $LOCAL_IP -m string --string $URL_STRING --algo bm -m time --weekdays Mon,Tue,Wed,Thu,Fri --timestart $TIME_START --timestop $TIME_END -j DROP
    ########################################

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