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From: Bruce Momjian <[email protected]>
To: Laurenz Albe <[email protected]>
Cc: soumen rana <[email protected]>
Cc: [email protected]
Subject: Re: Anti virus scanning for Postgres database servers
Date: Tue, 23 Sep 2025 08:03:12 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CA+nn5EVhtxMpoG64iKOMW2pSKEQGjpHbS3TiXg04HryXiETibg@mail.gmail.com>
	<[email protected]>

On Tue, Sep 23, 2025 at 08:22:51AM +0200, Laurenz Albe wrote:
> On Mon, 2025-09-22 at 13:03 -0700, soumen rana wrote:
> > This will mean that the Postgres Installation directories and files will be
> > scanned by Microsoft Defender and quarantine any threats.
> > 
> > We have requested to exclude the data directories from the Antivirus scanning.
> > Is anyone aware of any performance,  operational, or data-loss related
> > challenges with Anti Virus scanning of Postgres binaries?
> 
> I think that should be safe, at least until Microsoft starts to perceive
> PostgreSQL as a threat...

Uh, if the anti-virus software does not modify any files, you are likely
to get false positives when the antivirus software thinks Postgres data
is a virus.  If the anti-virus software modifies the data directory in
any way, you are likely to get database corruption or a non-operational
database.

-- 
  Bruce Momjian  <[email protected]>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.

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