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Editorial Team
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Asked: 2026-06-14T14:41:20+00:00

I have problems connecting to an external Postgresql database on EC2 from my heroku

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I have problems connecting to an external Postgresql database on EC2 from my heroku app. The problem seams to be with the permission on EC2.

I have done the following:
– added 098166147350/default for my security group on port 5432 (my postgresql port)
– connect to the site using the “Public DNS”-address (ec2-x-x-x-x.compute-1.amazonaws.com).

The database I try to connect to is in the EU and not US-East region as the heroku app, don’t know if this makes any difference?

Anyway if I add 0.0.0.0/0 to 5432 it does work, so I guess it got to have to be the security settings.

Anyone have any idea what the problem could be?

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1 Answer

  1. Editorial Team

    I got back from heroku support:
    Apparently the different i region (us-east (heroku) -> eu (my db)) makes a different in adding a security group like that. So the they suggested a VPN tunnel from us-east on my account to eu. Or just 0.0.0.0/0 and rely on SSL and good passwords.

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