What is bastion? Is it necessary? Why does it cost so much and how do I get rid of it?

Ali Admin 0 Reputation points
2025-09-08T15:39:02.08+00:00

Our azure billing has gone up about $200 in the past few months, we suspect it's due to bastion. I have no idea what bastion is besides a pseudo-rdp tool. Can I remove it?

Azure Bastion
Azure Bastion
An Azure service that provides private and fully managed Remote Desktop Protocol (RDP) and Secure Shell (SSH) access to virtual machines.
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  1. Pradeep Kommaraju 940 Reputation points Microsoft Employee
    2025-09-08T16:34:23.0333333+00:00

    Hello Ali ,

    Thanks for reaching out to Microsoft Q and A Forum , Here is a precise answer for your question:

    Current Cost Justification
    Azure Bastion is a managed jump host that stays running and costs about $0.19/hour (~$140/month) plus data. If you don’t use it, you can delete the Bastion resource to stop the charges.

    Workaround

    A Public IP for a VM costs roughly $3–4/month plus minimal data charges, so it’s much cheaper.

    Risk's To handle

    The risk is that exposing RDP/SSH directly to the internet increases attack surface. To mitigate, restrict source IPs in the Network Security Group, use just-in-time VM access, and enforce strong credentials or SSH keys.

    Reference Docs:

    Please do consider accepting the answer if this was helpful Or Do get back if you have any further questions on the same.

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