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From: Daniel Gustafsson <[email protected]>
To: Tom Lane <[email protected]>
Cc: Casey & Gina <[email protected]>
Cc: [email protected]
Subject: Re: Question about UNIX socket connections and SSL
Date: Wed, 12 Jun 2024 21:32:22 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

> On 12 Jun 2024, at 21:17, Tom Lane <[email protected]> wrote:
> 
> Casey & Gina <[email protected]> writes:
>> So why can't I use SSL when connecting from a client to a UNIX socket?
> 
> (1) It'd add overhead without adding any security.  Data going through
> a UNIX socket will only pass through the local kernel, and if that's
> compromised then it's game over anyway.
> 
> (2) I'm less sure about this part, but I seem to recall that openssl
> doesn't actually work if given a UNIX socket.

That indeed used to be the case, at least until 1.0.2 and possibly 1.1.1, but
AF_UNIX is supported in 3+ IIRC. That being said, I agree with your (1).

--
Daniel Gustafsson

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