Edubuntu Filter Server

[Gerald Drouillard]

Dorminy, Bill wrote:
> Hello all,
> 
> I am using Edubuntu with Dansguardian, Tinyproxy, and Firehol as a temporary URL filtering server. I have set Internet Explorer to use the server Ip and port 8080 as a proxy which is working great, however I am having trouble blocking secure proxy (https://) sites. Can anyone tell me how to filter https sites with Dansguardian?
> 
> Thanks,
> 
> Bill
> 
> DCSS
Try using opendns.org with a combination of this script to run every 
hour or so:

#!/bin/sh
valid_dotted_quad()
     {
     ERROR=0
     oldIFS=$IFS
     IFS=.
     set -f
     set -- $1
     if [ $# -eq 4 ]
     then
	for seg
	do
	    case $seg in
		""|*[!0-9]*) ERROR=1;break ;;
		*) [ $seg -gt 255 ] && ERROR=2 ;;
     	    esac
	done
     else
	ERROR=3
     fi
     IFS=$oldIFS
     set +f
     return $ERROR
     }	
YESTERDAY=`date --date='1 days ago'`
D=`date --date="$YESTERDAY" +%-d`
M=`date --date="$YESTERDAY" +%-m`
Y=`date --date="$YESTERDAY" +%-Y`
TESTLOG=/tmp/proxy_test.txt
BLOCK_DOMAIN=/tmp/proxy_block_domain.log
BLOCK_IP=/tmp/proxy_block_ip.log
HOST=/etc/hosts
RULES=/etc/dansguardian/bannedsitelist
BLOCK_PRE=""
#rm $BLOCK_DOMAIN
#touch $BLOCK_DOMAIN
#echo
#echo "*** DansGuardian DENIED Report ***"
#cat /var/log/dansguardian/access.log |grep -w "$Y.$M.$D" |grep "DENIED"
cat /var/log/dansguardian/access.log |grep 
'/loader-counter.js?hostname='|awk {'print $5'}|cut -c 8-|sort -u|cut 
-d/ -f 1 >$TESTLOG
changed=0
for DOMAIN in `cat $TESTLOG`; do
     if ! grep -q "$DOMAIN" "$RULES"; then
	echo
	echo $DOMAIN
	if valid_dotted_quad "$DOMAIN"; then
	    BLOCK_PRE="*"
	else
	    BLOCK_PRE=""
	fi
	echo "$BLOCK_PRE""$DOMAIN" >> $RULES
	changed=1		
     fi
done
if [ $changed = 1 ]; then
     /etc/init.d/dansguardian restart
fi


-- 
Regards
--------------------------------------
Gerald Drouillard
Technology Architect
Drouillard & Associates, Inc.
http://www.Drouillard.biz