What Are the Advantages of Azure Bastion? Let us understand what Azure Bastion is and how to take advantage of the solution. To counter these problems, Microsoft introduced a fully managed Platform as a Service (PaaS) solution provisioned in the Azure Virtual Network (VNet) for Remote Desktop Protocol (RDP)/ Secure Shell Protocol (SSH) connectivity to Azure virtual machines called Azure Bastion. While neither of these solutions guarantees complete protection against cyber-attacks, they are complex to implement and manage. The alternative is to use a site-to-site VPN or a dedicated virtual machine that stores public IP addresses. Next stepsįor more information, see the Bastion FAQ.Virtual machines (VM) accessed using public IPs are vulnerable to cyber-attacks especially when they are used directly in the production environment. Allow WebSockets traffic on your client internet firewall, and check the NSGs on your target VM subnet. Most cases include an NSG applied either to AzureBastionSubnet, or on your target VM subnet that is blocking the RDP/SSH traffic in your virtual network. Q: When I try to connect using Azure Bastion, I can't connect to the target VM and I get a black screen in the Azure portal.Ī: This happens when there is either a network connectivity issue between your web browser and Azure Bastion (your client Internet firewall may be blocking WebSockets traffic or similar), or between the Azure Bastion and your target VM. Q: Is file transfer supported with Azure Bastion?Ī: File transfer is not supported at this time. To start, choose a source to start the connection from, and the destination you wish to connect to and select "Check". Network Watcher Connection Troubleshoot provides the capability to check a direct TCP connection from a virtual machine (VM) to a VM, fully qualified domain name (FQDN), URI, or IPv4 address. Q: I am unable to connect to my virtual machine (and I'm not experiencing the problems above).Ī: You can troubleshoot your connectivity issues by navigating to the Connection Troubleshoot tab (in the Monitoring section) of your Azure Bastion resource in the Azure portal. It is not supported for Azure AD-joined-only virtual machines. This is supported for domain-joined or hybrid-joined (both domain-joined as well as Azure AD-joined) virtual machines. When specifying the domain credentials in the Azure portal, use the UPN format instead of domain\username format to sign in. Q: I am unable to connect to my Windows virtual machine that is domain-joined.Ī: Azure Bastion supports domain-joined VM sign-in for username-password based domain sign-in only. Unable to sign in to my Windows domain-joined virtual machine SHA256:c SBciKXnwceaNQ8Ms8C4h46BsNosYx 9d AUxdazuE key's randomart image is: Your public key has been saved in /home/ashishj/.ssh/id_rsa.pub. Your identification has been saved in /home/ashishj/.ssh/id_rsa. Ssh-keygen -t rsa -b 4096 -C ssh-keygen -t rsa -b 4096 -C public/private rsa key pair.Įnter file in which to save the key (/home/ashishj/.ssh/id_rsa):Įnter passphrase (empty for no passphrase): Make sure that you browse a key file that is RSA, DSA, or OPENSSH private key for SSH, with public key provisioned on the target VM.Īs an example, you can use the following command to create a new RSA SSH key: Q: When I try to browse my SSH key file, I get the following error: 'SSH Private key must start with -BEGIN RSA/DSA/OPENSSH PRIVATE KEY- and ends with -END RSA/DSA/OPENSSH PRIVATE KEY-'.Ī: Azure Bastion supports RSA, DSA, and OPENSSH private keys, at this point in time. Unable to use my SSH key with Azure Bastion If you do not add these rules, the NSG creation/update will fail.Īn example of the NSG rules is available for reference in the quickstart template.įor more information, see NSG guidance for Azure Bastion. For a list of required rules, see Working with NSG access and Azure Bastion. Q: When I try to create an NSG on the Azure Bastion subnet, I get the following error: 'Network security group does not have necessary rules for Azure Bastion Subnet AzureBastionSubnet".Ī: If you create and apply an NSG to AzureBastionSubnet, make sure you have added the required rules to the NSG. Unable to create an NSG on AzureBastionSubnet This article shows you how to troubleshoot Azure Bastion.
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