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Understand the Wide Umbrella of Cloud Networking Services

By September 26, 2023November 10th, 2023Azure, Blog, Microsoft, Networking
Cloud Networking: The Wide Umbrella of Services

Since the start of the COVID-19 pandemic, hybrid and remote work has never been easier or more accessible. Along with the sudden need to access systems remotely, came a spike in cloud services. Years later, the cloud is still on the rise, and new solutions are constantly becoming available to improve cloud performance and connectivity.

During the mass shift to remote work, many users got familiar with accessing corporate resources via the cloud. But you may have run into these problems and concerns when configuring your resources:

  • How to make resources available to users off-site when your business relies on on-premises resources.
  • How to prevent servers from becoming overwhelmed and causing unwanted downtime as large numbers of users need access to resources on your corporate network.
  • What to do to make sure your sensitive data is not available to any user or device—especially those outside of your organization—and therefore putting your business at risk of breaches or hacks.

As these concerns regarding cloud networking configurations arose, so did cloud networking services. For businesses using the cloud, or planning to migrate to the cloud, networking should be a key area of focus.

What is Cloud Networking?

Cloud networking is a mode of managing and connecting network resources such as VPNs and firewalls that are in the cloud. The cloud is made up of a vast network of remote servers hosted on the internet that are geographically dispersed and interconnected. Cloud networking solutions ensure the connection between these various remote servers, and improve the management, delivery, and security of network resources.

Cloud networking is a wide umbrella of services and solutions that target various aspects of a cloud network. If I were to list all the solutions associated with cloud networking, I’d probably still be writing the list. Lucky for both of us, I will not be doing that. Cloud networking services often fall into three common categories: connectivity services, application delivery services, and application protection services. Let’s take a closer look at these categories of services and some solutions that fall under each one.

Cloud Networking Services

Connectivity Services

In the modern landscape, your business may operate from many physical locations or with a widely dispersed workforce. Your network helps keep your employees connected to the data and applications they need to perform their job duties—like your CRM.

Cloud networking connectivity services increase the ease of access your users have to resources on your corporate network—even when they’re not close enough to connect directly. With connectivity services, you provide your business with the flexibility to connect to network resources in different ways, and ultimately support your users.

There are different connectivity configurations available using cloud networking services, such as,

  • Site-to-Site: creates a secure connection between two or more networks. This can connect geographically separated offices to the corporate network in order to share resources across a single network. When you throw the cloud into the mix, you can use a site-to-site VPN to connect your on-premises network to your cloud environment to access services and resources hosted there.
  • Point-to-Site: creates a secure connection to your virtual network from a single, authorized computer. This is a great option for allowing remote workers to access resources and services on your corporate network.
  • VNet-to-VNet: securely connects two or more virtual networks.

One cloud networking service that can solve connectivity hurdles for businesses is an Azure VPN Gateway. This solution provides connectivity between Azure resources, connectivity from an on-premises network to Azure resources, and the branch-to-branch connectivity in Azure.

Different CSPs offer different connectivity services to ensure your cloud network connection does not fail. A VPN Gateway is a key component in PEI’s Azure Always-On VPN service offering, which provides a seamless, always-on VPN connection for remote workers, granting them secure access to all Azure and on-premises resources.

There are plenty of cloud connectivity services your business can use to ensure your cloud network connectivity is secure and make users more efficient. Cloud networking connectivity offerings include VPNs (virtual private network), VPC (virtual private cloud) networks, Virtual WAN (wide area networking) services, and Cloud DNS (domain naming system) services. Microsoft offers additional connectivity services such as ExpressRoute, Azure Bastion, and Azure Peering Service.

Application Delivery Services

Application Delivery Networking is heavily reliant on load balancing, which is a software-based service that distributes internal and external web traffic between multiple cloud servers to ensure one does not become overwhelmed. When one server is managing too many requests, businesses face the threat of latency and downtime.

Application Delivery ensures the cloud-based applications you need are efficiently delivered through cloud-based networks with little to no latency. Application Delivery Networking includes content delivery networks, application delivery controllers, WAN optimization controllers (WOC), firewalls for cloud-based applications, and secure gateways to access all necessary resources.

For example, Azure Application Gateway is a web traffic load balancer that enables businesses to manage traffic to their web applications and ensure a good experience for employees and customers. One use case for Azure Application Gateway is that you can make your business applications securely accessible to users without needing to go through a VPN.

Azure Application Gateway is an example of an Application Delivery Controller (ADC) as a service, offering various layer 7 load-balancing capabilities for Microsoft applications. PEI highly recommends offloading all public inbound web traffic to a Microsoft ADC as opposed to exposing your web applications directly to the internet.

Application Protection Services

Application Protection Services come as various cloud-based offerings that you can mix and match to ensure your network is secure.

DDoS Protection: Cloud Providers should offer some form of Distributed Denial of Service (DDoS) protection service to ensure applications running on your cloud environment are safe from DDoS threats.

Web Application Firewall: A Web Application Firewall (WAF) protects your web applications from common web exploits such as SQL injections and cross-site scripting, which can threaten your cloud environment’s security, consume excess resources, or cause downtime for your business. WAFs have predefined rules, but also allow you—or your Cloud Services Provider—to create custom security rules for additional protection against security threats.

Network Firewall: Network Firewalls are deployed via the cloud and protect your network resources from potential threats. With a cloud-based network firewall, you can create, enforce, and log application and network connectivity policies. You can set rules that require VPCs to use approved protocols to access specific domains, and you can establish web filtering rules that prevent access to known bad URLs. By monitoring traffic flows with your firewall, you can identify and block potential threats to your network.

Get Started with Cloud Networking Services

PEI offers cloud networking services to support each of these categories, and we will help you mix and match solutions, so you are confident in your cloud environment. We specialize in Microsoft Azure solutions for small and mid-sized businesses. PEI is committed to helping you every step of the way as you transition to the cloud. We even offer Azure Consulting Services to optimize your Azure platform.

Common Microsoft solutions PEI deploys are the Azure VPN Gateway, Azure Application Gateway, and the Web Application Firewall. In the connectivity category, the Azure VPN Gateway—Azure Always On—maintains a steady VPN connection, so your users never have to struggle with reconnecting or taking multiple login steps. PEI can create network infrastructure to provide stable VPN connections and configure Azure Always On components, so your users have a secure and fast connection to network resources.

Azure Application Gateway is a broader solution that can be paired with other Azure offerings to ensure your network connection never fails and your systems are secure. This load balancing system routes traffic to various servers. Application Gateway has URL-based routing capabilities and more, so you can increase speed by automatically routing web traffic to the server pools optimized for the specific type of content. This means faster, more responsive access to applications for your employees and customers. PEI also offers security solutions like the Azure Web Application Firewall. The Web Application Firewall pairs well with Azure Application Gateway to provide centralized protection for web apps.

Finally, for any solution implemented, PEI provides training and documentation. This includes administrative training for all services, and documentation for any architecture implemented, and services performed. If you still have questions about Cloud Networking, or if you are ready to get started, contact PEI today!

Anna Ross, PEI

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