GOautodial Open Source Omni-channel Contact Center Suite

GoAdmin ® 3.3-1406088000

I am using this goautodial.
I want to block ip through iptables.

The problem i am facing whenever iptables is active agents do receive calls.
When ever i stop the iptables then it works. Kindly help me to fix this issue. I am using this code.

st: Create whitelistIP file and folder name firewall
#mkdir /usr/src/firewall
#touch /usr/src/firewall/whitelistIP.txt

2nd: Add the Ip's or Domain allowed to access server, one per line
#nano /usr/src/firewall/whitelistIP.txt
192.168.0.1
supportalg.test.com
10.10.10.10

Note: Save file then exit

3rd: Locate where the iptables command is located in your linux machine
#which iptables
#which iptables-save

#which iptables
/sbin/iptables

#which iptables-save
/sbin/iptables-save

4th: IPTables script
nano /usr/src/firewall/firewall.sh

copy and paste the below script

#!/bin/bash

1. allowed ip file location
   WHITELIST=/usr/src/firewall/whitelistIP.txt #
   1. Specify where IP Tables is located #
      IPTABLES=/sbin/iptables
      IPTABLES_SAVE=/sbin/iptables-save #
   2. Save current iptables running configuration in case we want to revert back
   3. To restore using our example we would run "/sbin/iptables-restore < /usr/src/iptables.last" #
      $IPTABLES_SAVE > /usr/src/iptables.last #
   4. Clear current rules #
      ##If current INPUT policy is set to DROP we will be locked out once we flush the rules
   5. so we must first ensure it is set to ACCEPT. #
      $IPTABLES -P INPUT ACCEPT
      echo 'Setting default INPUT policy to ACCEPT'
      $IPTABLES -F
      echo 'Clearing Tables F'
      $IPTABLES -X
      echo 'Clearing Tables X'
      $IPTABLES -Z
      echo 'Clearing Tables Z'
      #Always allow localhost.
      echo 'Allowing Localhost'
      $IPTABLES -A INPUT -s 127.0.0.1 -j ACCEPT #
   6. Whitelist #
      for x in `grep -v ^# $WHITELIST | awk '{print $1}'`; do
      echo "Permitting $x..."
      $IPTABLES -A INPUT -s $x -j ACCEPT
      done
2. block all other traffice
   $IPTABLES -A INPUT -p all -j DROP #
   1. Save the rules so they are persistent on reboot. #
      /etc/init.d/iptables save

Note: Save file then exit

5th: Make the script executable
#chmod +x /usr/src/firewall/firewall.sh

6th: run/execute the script
#/usr/src/firewall/firewall.sh

check the rules
#iptables -L -n