iptables for BBB Ubuntu Server - arrivu/beacon GitHub Wiki

This Script used for iptables for BBB ubuntu server 12.04

#!/bin/bash
#This Script was Used for Only Setting up Iptables in ubuntu 12.04 server
#uncomment the Lines With # Which u don't need to use 
#if u going to use this script in remote VPS Test it in local systems before applying it in remote VPS .


#1.This enable traffic for (lo) loopback interface(-i)


iptables -A INPUT -i lo -j ACCEPT


#2.This Will Keep the rules for Which service currently Established  eg : ssh


iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT


#3. This Will Enable the Port Number 2002 for ssh which i we have defined 



iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 2002 -j ACCEPT



#4. This Will Enable the Port Number 80 for http 



iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT



#5. This Will Enable the Port Number 443 for httpd 



iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT



#6.This Will Enable the Port Number 9125 for tcp messaging 


iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 9123 -j ACCEPT


#7. This Will Enable the port Number 1935 for Messaging Service 


iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 1935 -j ACCEPT


#8. This Will Protect from Dos Attack 


iptables -A INPUT -p tcp --dport 80 -m limit --limit 25/minute --limit-burst 100 -j ACCEPT


#9. This will Open the port for the Monit monitoring service over the remote location 


iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 2812 -j ACCEPT


#10. If we Need to Disable The ping Request use this Rule


iptables -A OUTPUT -p icmp --icmp-type 8 -j DROP


exit 0

To Save the Iptables and Restart follow the Steps

Installing iptables persistent

# sudo apt-get install iptables-persistent 

Give the Yes to IPV4 and IPV6

Save the iptables using command

# iptables-save

Save the iptables after reboot

#sudo iptables-persistent save 

Restart the iptables to take effect

#sudo iptables-persistent restart

Listing the iptables using

#iptables -L

For Removing all Rules Use command

#iptables -F

To Delete the iptables use command

#iptables -D INPUT 1 (ot) Which Line u need to delete .

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