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To implement Azure Bastion, the following high-level steps are necessary:
Azure Bastion is offered as a PaaS service with a per-hour billing model, providing cost efficiency as organizations do not need to invest in additional public IP addresses or NAT gateways for secure RDP/SSH access.
The connectivity via Azure Bastion can be summarized as follows:
User —HTTPS—> Azure Portal —RDP/SSH over TLS—> Azure Bastion —RDP/SSH—> Virtual Machine
By enforcing the connectivity to go through Azure Portal, administrators can ensure that all sessions are logged and audited, providing additional layers of governance and oversight.
Azure Bastion enhances the security posture of your Azure infrastructure by providing secure and seamless access to your Azure VMs. Implementing Azure Bastion is straightforward, requiring only a few steps to set up and manage the service within the Azure Portal. By using Azure Bastion, administrators can benefit from a more secure way to connect to VMs, control costs, and streamline the management of remote sessions with minimal effort.
Azure Bastion is a fully managed service that provides secure and seamless RDP and SSH access to your virtual machines directly through the Azure portal without the need for a public IP address on your VMs.
B. Virtual Network
Azure Bastion is deployed within a virtual network (VNet) to which the VMs it provides access to are also connected.
D. None of the above
Azure Bastion is a standalone service that does not require Azure VPN Gateway, Azure Active Directory Domain Services, or Azure ExpressRoute to function.
Azure Bastion supports both RDP and SSH protocols, which means it can connect to Windows (RDP) and Linux (SSH) virtual machines.
Azure Bastion supports VNet peering and can be used to access VMs in different peered VNets, provided that network security group (NSG) rules allow the necessary traffic.
C. Session Hosts
Azure Bastion uses ephemeral instances called Session Hosts to establish secure RDP/SSH sessions so that each session is isolated from the others and does not persist.
When you deploy Azure Bastion, it requires a dedicated subnet within your VNet named ‘AzureBastionSubnet’ with a specific prefix length.
A. Azure Monitor
Azure Monitor can be used in conjunction with Azure Bastion to collect logs and monitor the sessions for auditing or diagnostic purposes.
Azure Bastion is region-specific. To access VMs, you need to deploy Bastion in the same Azure region as the VMs.
C. Premium tier
The Premium tier of Azure Bastion allows for scaling to support higher numbers of concurrent sessions and does not impose a pre-set limit on the number of users.
Azure Bastion itself doesn’t have a built-in NSG, but you can (and should) configure NSGs on the AzureBastionSubnet for enhanced security.
C. Just In Time (JIT) VM access
Azure Bastion integrates with Just In Time (JIT) VM access, which is a feature of Azure Defender for enhanced security, by providing controlled access to VMs.
Azure Bastion is a fully-managed service that provides secure and seamless RDP/SSH connectivity to virtual machines directly from the Azure portal over SSL.
To create an Azure Bastion host, you need to open the Azure portal, navigate to your virtual machine, select the “Bastion” option in the left-hand menu, click the “Add” button, and fill in the required details.
You need to provide a name for the Azure Bastion host, the virtual network, and the subnet. You also need to choose the size of the Azure Bastion host.
Azure Bastion eliminates the need for a public IP address and the use of RDP or SSH clients, providing an additional layer of security. It is also convenient, cost-effective, and easy to use.
To connect to a virtual machine with Azure Bastion, you need to navigate to your virtual machine in the Azure portal, click the “Connect” button, choose the “Bastion” option, and select the Azure Bastion host you created earlier. You also need to enter the username and password for the virtual machine.
Yes, Azure Bastion is a PaaS solution.
Azure Bastion provides secure and seamless RDP/SSH connectivity to virtual machines directly from the Azure portal, eliminating the need for a public IP address and the use of RDP or SSH clients.
Azure Bastion eliminates the need for a public IP address and the use of RDP or SSH clients, providing an additional layer of security.
Azure Bastion is a cost-effective solution for remote access, eliminating the need for expensive VPNs and hardware solutions.
Yes, Azure Bastion is easy to set up and use, providing a simple and secure way to connect to virtual machines.
No, Azure Bastion does not require a VPN.
Yes, Azure Bastion can be used to connect to virtual machines from anywhere with an internet connection.
Azure Bastion provides a simpler, more cost-effective, and more secure solution for remote access compared to a VPN.
Yes, Azure Bastion is suitable for businesses of any size.
Yes, Azure Bastion can be used for both RDP and SSH connectivity.
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