How to disable Strict Host Key Checking in SSH?

Tags: linux unix ssh

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Question

I want to connect to some servers using SSH, but I want to ignore any errors about changed or missing keys. How can I accomplish this?

Answer

$ ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@whatever.com

Citation

If you find this work useful, please cite it as:

@article{yaltirakliqnasshdisablehostkeychecking,
  title   = "How to disable Strict Host Key Checking in SSH?",
  author  = "Yaltirakli, Gokberk",
  journal = "gkbrk.com",
  year    = "2025",
  url     = "https://www.gkbrk.com/qna/ssh-disable-host-key-checking/"
}

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IEEE Citation

Gokberk Yaltirakli, "How to disable Strict Host Key Checking in SSH?", February, 2025. [Online]. Available: https://www.gkbrk.com/qna/ssh-disable-host-key-checking/. [Accessed Feb. 04, 2025].

APA Style

Yaltirakli, G. (2025, February 04). How to disable Strict Host Key Checking in SSH?. https://www.gkbrk.com/qna/ssh-disable-host-key-checking/

Bluebook Style

Gokberk Yaltirakli, How to disable Strict Host Key Checking in SSH?, GKBRK.COM (Feb. 04, 2025), https://www.gkbrk.com/qna/ssh-disable-host-key-checking/

How to disable Strict Host Key Checking in SSH?

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