How can I secure Postgres for remote access when not in a private network?

Posted by orokusaki on Server Fault See other posts from Server Fault or by orokusaki
Published on 2012-12-15T04:20:55Z Indexed on 2012/12/15 5:07 UTC
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ubuntu

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security

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postgresql

I have a database server on a VMWare VM (Ubuntu 12.04.1 LTS server), and it just occurred to me that the server is accessible via the web, since the same physical server contains a VM that hosts public websites. My iptables in the database are such that only SSH traffic, loopback traffic, and TCP on port 5432 are allowed. I will only allow host access to the Postgres server from the IP of the other VM on the same physical machine.

Does this seem sufficient for security, assuming there aren't gaping holes in my general OS configuration, or is Postgres one of those services that should never be web facing, (assuming there are some of "those").
Will I need to use hostssl instead of host in my pg_hba.conf, even though the data will travel only on my own network, presumably?

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