Azure Application Security Groups

21st of November, 2017 / / 3 Comments

Azure Application Security Groups (ASG) are a new feature, currently in Preview, that allows for configuring network security using an application-centric approach within Network Security Groups (NSG). This approach allows for the grouping of Virtual Machines logicaly, irrespective of their IP address or subnet assignment within a VNet.

They work by assigning the network interfaces of virtual machines, as members of the ASG. ASGs are then used within NSGs as either a source or destination of a rule, and this provides additional options and flexibility for controlling network flows of resources within a subnet.… [Keep reading] “Azure Application Security Groups”

Secure Azure Virtual Network Defense In Depth using Network Security Groups, User Defined Routes and Barracuda NG Firewall

25th of August, 2015 / / 3 Comments

Security Challenge on Azure

There are few common security related questions when we start planning migration to Azure:

  • How can we restrict the ingress and egress traffic on Azure ?
  • How can we route the traffic on Azure ?
  • Can we have Firewall kit, Intrusion Prevention System (IPS), Network Access Control, Application Control and Anti – Malware on Azure DMZ ?

This blog post intention is to answer above questions using following Azure features combined with Security Virtual Appliance available on Azure Marketplace:

  • Azure Virtual Network (VNET)
  • Azure Network Security Groups (NSGs)
  • Azure Network Security Rule
  • Azure Forced Tunelling
  • Azure Route Table
  • Azure IP Forwarding
  • Barracuda NG Firewall available on Azure Marketplace

One of the most common methods of attack is The Script Kiddie / Skiddie / Script Bunny / Script Kitty.… [Keep reading] “Secure Azure Virtual Network Defense In Depth using Network Security Groups, User Defined Routes and Barracuda NG Firewall”

Azure ExpressRoute in Australia via Equinix Cloud Exchange

1st of July, 2015 / / 4 Comments

Microsoft Azure ExpressRoute provides dedicated, private circuits between your WAN or datacentre and private networks you build in the Microsoft Azure public cloud. There are two types of ExpressRoute connections – Network (NSP) based and Exchange (IXP) based with each allowing us to extend our infrastructure by providing connectivity that is:

  • Private: the circuit is isolated using industry-standard VLANs – the traffic never traverses the public Internet when connecting to Azure VNETs and, when using the public peer, even Azure services with public endpoints such as Storage and Azure SQL Database.
… [Keep reading] “Azure ExpressRoute in Australia via Equinix Cloud Exchange”