You can use Spamhaus, or a number of other lists in a Vyatta firewall configuration. In this case we create a network group called ‘blocked’ from the Spamhaus blacklists. Then this network group can be used in firewalls to drop traffic. Use cron to update the list every day, or once a week.
#!/bin/bash # FILE: /usr/local/sbin/updateBanList.sh # AUTHOR: ForDoDone fordodone@fordodone.com # DATE: 2013-10-01 # NOTES: Script to update IP ban list. Run from cron, and integrate into firewall # # variables VERBOSE=0 DROPURL='http://www.spamhaus.org/drop/drop.txt' EDROPURL='http://www.spamhaus.org/drop/edrop.txt' # simple logger function logger(){ if [ "$VERBOSE" == "1" ] then echo "$@" fi } # set verbose flag if given if [ "$1" == "-v" ] then VERBOSE=1; fi # create or truncate tmp file >/tmp/block # get drop file wget -q $DROPURL -O - | grep ^[0-9] | sed -e 's/;.*//' >> /tmp/block if [ $? -ne 0 ] then logger "error getting drop file" logger "exiting..." exit fi # get edrop file wget -q "$EDROPURL" -O - | grep ^[0-9] | sed -e 's/;.*//' >> /tmp/block if [ $? -ne 0 ] then logger "error getting edrop file" logger "exiting..." exit fi logger "received `wc -l /tmp/block | awk '{print $1}'` networks to block..." logger "starting vyatta cmd wrapper" /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper begin # remove existing list, in case a network has been removed" logger "deleting existing blocked network group" /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper delete firewall group network-group blocked # add each network to the block list logger "building new blocked network group" logger "this might take a while..." for i in `cat /tmp/block`; do /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper set firewall group network-group blocked network $i done; # now commit the changes logger "committing changes" /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper commit logger "ending vyatta cmd wrapper" /opt/vyatta/sbin/vyatta-cfg-cmd-wrapper end # clean up rm -rf /tmp/block >/dev/null 2>&1
Hi,
I had switched to Vyos a few weeks ago, and have been looking all over for just such a script. I’ve been updating my network blacklist manually.
Thanks,
Mark
Thank you very much for this post, it helped me a lot!