fir3net
August 16, 2016

Cisco ASA - Traffic Sent Out Incorrect Interface Due to NAT Rule

in Cisco
Problem Lets consider the following scenario. We have a firewall with 3 interfaces, Outside, Inside and DMZ. When traffic is sent to the DMZ segment, the NAT rule below is matched. This results in traffic being sent out of the outside interface, rather then out the DMZ interface. Surely this cant be right ! object-group network obj-insideips network-object host 10.1.1.45 network-object host…

How to Resolve a Git Merge Conflict from the Command Line

in Linux
Git provides 3 types of merging, Fast-Forward, Automatic and Manual. A manual merge is required when git is unable to resolve any conflicts , this…

How to Colorize the Git Output within your Shell

in Linux
Git provides various global configuration options for colorizing the output.[1] In order to enable these options, run the following commands. This…

How to Display your Local Git Branch in your BASH prompt

in Linux
In order to make your life easier when working with git, this article provides the steps to display the current local git branch within your bash…

How to Configure Django + Gunicorn inside Docker

in Django
Introduction Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model ported from Ruby's Unicornproject[1].…

How to Build a Site to Site VPN Between Azure and a Cisco ASA

in Cisco
Introduction Within this article we will show you how to build a policy based site to site VPN between Microsoft Azure and a Cisco ASA firewall.…
vnet-layout

Microsoft Azure - Virtual Networks (VNets) Explained

in Cloud
What is a Virtual Network? A Virtual Network, also known as a VNet is an isolated network within the Microsoft Azure cloud.VNets are synonymous to…

How to Configure the UFW Firewall

in Linux
Introduction The Uncomplicated Firewall (ufw) is a frontend for iptables and is particularly well-suited for host-based firewalls. ufw provides a…

AWS - What is Elastic Compute Cloud (EC2) ?

in Cloud
Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud.[1] EC2 is divided into various…

What is SR-IOV (Single Root I/O Virtualization) ?

in Protocols
SR-IOV is a technology, by Intel created to improve the networking performance of virtual machines. Interrupts First of all it is important to…