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https://github.com/bmaeser/iptables-boilerplate

rock solid default firewall-rules for webhosts
https://github.com/bmaeser/iptables-boilerplate

debian firewall iptables ubuntu

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rock solid default firewall-rules for webhosts

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README 

        
# project unmaintained!



use with caution



# iptables-boilerplate

rock solid default firewall-rules for webhosts



## What is this?

iptables-boilerplate is a set of predefined firewall rules that are typically used on "webhosts".

its not a set of rules, designed to secure your home or office-network or to setup a router or gatweay.

think of "lamp"-servers.



#### iptables-boilerplate is tested on

* Debian 7.0 / Wheezy

* Debian 8.0 / Jessie

* Debian 9.0 / Stretch

* Ubuntu 14.04 LTS / Trusty

* Ubuntu 16.04 LTS / Xenial



we will support every LTS (Ubuntu) and stable (Debian) version.



#### Features

* rock solid defaults

* easy extendable

* one-line opening ports

* one line whitelisting ips

* one line blacklisting ips

* extensively documented (inline comments)



## Installation



### Easy Install

On Ubuntu and Debain you can use `make` to install or uninstall.



Make sure `make` is installed:



    sudo apt-get install make



And follow these steps to install:



    git clone git://github.com/bmaeser/iptables-boilerplate.git

    cd iptables-boilerplate

    sudo make



To uninstall run:



    sudo make uninstall



### On other systems



create necessary directories first

    

    sudo mkdir /etc/firewall

    sudo mkdir /etc/firewall/custom



checkout the github repo and install the files



    git clone git://github.com/bmaeser/iptables-boilerplate.git

    cd iptables-boilerplate

    sudo cp firewall /etc/init.d/firewall

    cd etc/firewall/

    sudo cp *.conf /etc/firewall/

    

make sure firewall is executable and update runnlevels



    sudo chmod 755 /etc/init.d/firewall

    sudo update-rc.d firewall defaults

    

## Configuration



All configuration-files are to be found at /etc/firewall/



Feel free to read the firewall-script itself and comment/uncomment what you like or dislike.



#### firewall.conf

Main firewall configfile. All settings are on sane defaults, you really should know what you do

if you change them.



#### services.conf

This file is used to open ports for services like ssh or http(s) in your firewall.



###### SYNTAX:



PORT/PROTOCOLL SOURCE

where SOURCE is the source ip or network



n.n.n.n/m - Where n.n.n.n is the IP address range and m is the bitmask.



if SOURCE is empty it defaults to 0.0.0.0/0 (which is any IP)



###### EXAMPLEs:



opens ports for SSH for IP 192.168.0.1:



    22/tcp 192.168.0.1

    22/udp 192.168.0.1



opens ports for HTTP for any IP



    80/tcp 0.0.0.0/0



opens ports for HTTPS for any IP



    443/tcp



#### ip-whitelist.conf:

Add all source IPs you want to have full access to this host.

One IP per line



###### SYNTAX:



n.n.n.n/m.m.m.m  - Where n.n.n.n is the IP address range and m.m.m.m is the netmask.



n.n.n.n/m - Where n.n.n.n is the IP address range and m is the bitmask.



###### EXAMPLEs:



    192.168.0.1

    192.168.1.0/8

    192.168.55.0/255.255.255.148

    

#### ip-blacklist.conf:

Add all source IPs you want to COMPLETELY BLOCK

One IP per line



###### SYNTAX:



n.n.n.n/m.m.m.m  - Where n.n.n.n is the IP address range and m.m.m.m is the netmask.



n.n.n.n/m - Where n.n.n.n is the IP address range and m is the bitmask.



###### EXAMPLEs:



    192.168.0.1

    192.168.1.0/8

    192.168.55.0/255.255.255.148

    

#### custom/*:

Every file/script you place here will be executed during firewall-start.

Place your custom rules in here.



There are some usefull examples in ./custom-examples/ that limit the ammount of new and overall connections.



## Usage

If you updated your runlevels, the firewall starts every time you boot your system.

However, you can manually start/stop/restart, e.g. to update changed settings.



    /etc/init.d/firewall (start|stop|restart|reload|force-reload|status)



* start: starts the firewall

* stop: stops the firewall

* restart, reload, force-reload: restarts the firewall (all three the same)

* status: print out the status of the firewall, shows all entries in iptables

* version: print out the version of iptables-boilerplate



## How to contribute

fork + hack + pull request please :-)



thx



## Licence

The MIT License (MIT)

Copyright © Bernhard Mäser(http://bmaeser.io) and contributors



Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the “Software”), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:



The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

THE SOFTWARE.