HOWTO: Captive Portal; more than 100 Free Authorized Clients

[miketheknife]

Hello all,

I came accross some Limitation. The number of Free Authorized Clients is a maximum of 100. For my installation i needed more than that. In the scripts directory (/root/kerbynet.cgi/scripts) there is a script called cpAddClient. That is the script that we have to change. Here is how to do it:

first of all create a directory in the /database. im my example I did the following:

– Login via SSH and open a Shell as admin
– create a directory for the adapted script
mkdir /Database/scripts
cd /Database/scripts
use vi to create a file called cpAddClient

==== COPY below – UPDATED SCRIPT====

#!/bin/sh
. /etc/kerbynet.conf
DESC=”$1″
IP=”$2″
[ “$IP” == Any ] && IP=””
MAC=”$3″
[ “$MAC” == Any ] && MAC=””
CONFIG=$REGISTER/system/cp
cd $CONFIG/FreeClients
LAST=10#`ls -d * 2>/dev/null |tail -1`
if [ -z “$LAST” ] ; then
NEW=0000
else
# if [ “${LAST:0:1}” == 0 ] ; then
# LAST=”${LAST:1:1}”
# fi
NEW=”$((LAST+1))”
if [ “$NEW” -lt 10 ] ; then
NEW=000$NEW
elif [ “$NEW” -lt 100 ] ; then
NEW=00$NEW
elif [ “$NEW” -lt 1000 ] ; then
NEW=0$NEW
fi
fi
mkdir $NEW
echo “$DESC” > $CONFIG/FreeClients/$NEW/Desc
echo “$IP” > $CONFIG/FreeClients/$NEW/IP
echo “$MAC” > $CONFIG/FreeClients/$NEW/MAC
$SCRIPTS/cpAddClientIPT “$IP” “$MAC”

==== PASTE above – UPDATED SCRIPT ====

– now login to the web administration panel
– under setup startup/cron enter the following

cp /Database/scripts/cpAddClient /root/kerbynet.cgi/scripts

– then enable and save (this step is important, beacuse after each restart the script gets copied now)
– restart your zeroshell, and now you should be able to add 9999 Free Authorized Clients to your ZeroShell via Web Interface

maybe Fulvio can remove this limitation in its original distribution some day.

– Regards Mike

[miketheknife]

Hello all,

i uncommented the following lines out of the cpAddClient script. As i am not a bourne shell expert, i could not find out what those lines do. Can someone explain to me, or give me a hint where i can find a documentation about this.

if [ “${LAST:0:1}” == 0 ] ; then
LAST=”${LAST:1:1}”
fi

without those lines the creation of the additional FreeClients work, but when i delete some, i have gaps, and they are not getting refilled. look here (ex the 0003 is missing):

0000 0006 0010 0014 0018 0022 0026 0030 0034 0038 0042 0046 0050
0001 0007 0011 0015 0019 0023 0027 0031 0035 0039 0043 0047 0051
0002 0008 0012 0016 0020 0024 0028 0032 0036 0040 0044 0048 0053
0004 0009 0013 0017 0021 0025 0029 0033 0037 0041 0045 0049

I think the above mentioned codebit has to do with this.

Regards, Mike

[emisebastian]

i did all that but i can’t make it work!
can u tell me how?
did you forget about something?

tks

[miketheknife]

@emisebastian wrote:

i did all that but i can’t make it work!
can u tell me how?
did you forget about something?

tks

Can you tell me more about what is not working?

I have just successfully implemented it with another firewall, i am using Beta14. on a Alix Board.

Greetz Mike

[Author]

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