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Subdomain Takeover through ngrok #85

Quikko opened this issue Mar 29, 2019 · 1 comment


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@Quikko Quikko commented Mar 29, 2019

Service name

Ngrok allows you to expose a web server running on your local machine to the internet. Just tell ngrok what port your web server is listening on.


Visiting the subdomain from your browser will show a HTML page, like shown below:


Perform a dig or host command, you will see a CNAME record pointing to [CUSTOM]

To perform the takeover:

  1. Make an account on
  2. Link a credit card to your account and pay for the $5/month. Otherwise, you are not allowed to make use of Custom subdomains. Important to note: You will get a refund within 15 days.
  3. Follow the steps on to link the binary to your account.
  4. Run the following command: ./ngrok http 80 -subdomain quikke. Note, quikke needs to be replaced with the value before
    5.Visit the subdomain again:


The error message is basically saying that I do not have a HTTP service running on port 80 on my local machine.


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