How to install BFD

October 11, 2008 | In: APF, Centos, Linux

What is BFD (Brute Force Detection)?


BFD is a modular shell script for parsing applicable logs and checking for authentication failures. There is not much complexity or detail to BFD yet and likewise it is very straight-forward in its installation, configuration and usage. The reason behind BFD is very simple; the fact there is little to no authentication and brute force auditing programs in the linux community that work in conjunction with a firewall or real-time facility to place bans. BFD is available at: http://www.rfxnetworks.com/bfd.php

This guide will show you how to install and configure BFD to protect your system from brute force hack attempts.

Requirements:
– You MUST have APF Firewall Installed before installing BFD – it works with APF and requires some APF files to operate.
– Root SSH access to your server


Login to your server through SSH and su to the root user.

1. cd /usr/local/src/.

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2. wget http://www.rfxnetworks.com/downloads/bfd-current.tar.gz

3. tar -xvzf bfd-current.tar.gz

4. cd bfd-*

5. Run the install file: ./install.sh
You will receive a message saying it has been installed

.: BFD installed
Install path:    /usr/local/bfd
Config path:     /usr/local/bfd/conf.bfd
Executable path: /usr/local/sbin/bfd

6. Edit the configuration file: vi /usr/local/bfd/conf.bfd

7. Enable brute force hack attempt alerts:

Find: EMAIL_USR=”root” CHANGE TO: EMAIL_USR=”your@yourdomain.com”

Save the changes

8. Prevent locking yourself out!
vi /usr/local/bfd/ignore.hosts and add your own trusted IPs
Save the changes

9. Run the program!
/usr/local/sbin/bfd -s

10. Customize your applicatoins brute force configuration
Check out the rules directory in your /usr/local/bfd

Here you’ll find all kinds of pre-made rules for popular services such as Apache, and ProFTPD w00t!
If you have any clue about shell scripting you can customize them or create new rules for enhanced brute force detection and prevent attacks.

mm
Hi All… I have been working the IT Industry since last ten years… Specialized in Linux, Cloud Infrastructure and Solution Design.
On the hobby friend, I do research on IOT, Micro-controllers, Electronics etc.
Music is my passion..Connect me on..

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mm
Presoon John

Hi All... I have been working the IT Industry since last ten years... Specialized in Linux, Cloud Infrastructure and Solution Design.
On the hobby friend, I do research on IOT, Micro-controllers, Electronics etc.
Music is my passion..Connect me on..

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