Heroku static IP addresses and MongoDB Atlas

MongoDB Atlas
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1

Hi Everyone

I am using the Swift native driver and Vapor for my web application which is hosted on Heroku. I have been in the development phase using the sandbox cluster but I am now looking to begin Beta testing and I have upgraded my cluster to M2.

I would now like to remove enabling access from anywhere and restrict access to two static IP addresses available from an Heroku add on, having followed the how to blog post: Using MongoDB Atlas on Heroku

However I am getting the following error and I am not sure how to resolve it:

No suitable servers found: `serverSelectionTimeoutMS` expired: [connection closed calling ismaster on 'cluster0-shard-00-00-fzuuk.mongodb.net:27017'] 
[Failed to receive length header from server. calling ismaster on '********************'] 
[Failed to receive length header from server. calling ismaster on '********************']

Any ideas on how I can resolve this?

What is the danger of making my MongoDB Atlas cluster available to be accessed from any IP Address?

Thanks
Piers

2

The danger of any IP address is low as long as you have an appropriately strong database credential and governance around the database credential management (consider MongoDB Atlas- Database - Secrets Engines | Vault | HashiCorp Developer for example).

But if you’re connecting from a static IP address then that should be all you need on the Atlas IP Access List: are you sure you have the public IP added?

-Andrew