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aus+uk / uk.comp.sys.mac / Privileged ports

SubjectAuthor
* Privileged portsRichard Tobin
`- Re: Privileged portsChris Ridd

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Privileged ports

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https://www.novabbs.com/aus+uk/article-flat.php?id=15479&group=uk.comp.sys.mac#15479

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From: rich...@cogsci.ed.ac.uk (Richard Tobin)
Newsgroups: uk.comp.sys.mac
Subject: Privileged ports
Date: Wed, 5 Apr 2023 14:49:18 +0000 (UTC)
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Originator: richard@cogsci.ed.ac.uk (Richard Tobin)
 by: Richard Tobin - Wed, 5 Apr 2023 14:49 UTC

Traditionally, only root can bind to IP port numbers <1024.

That no longer seems to be enforced on MacOS, which seems a bit
surprising.

-- Richard

Re: Privileged ports

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From: chrisr...@mac.com (Chris Ridd)
Newsgroups: uk.comp.sys.mac
Subject: Re: Privileged ports
Date: Wed, 5 Apr 2023 16:41:09 +0100
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 by: Chris Ridd - Wed, 5 Apr 2023 15:41 UTC

On 05/04/2023 15:49, Richard Tobin wrote:
> Traditionally, only root can bind to IP port numbers <1024.

Certainly not on all OSes - Windows in particular didn't restrict this.
Either way, it doesn't really add much at all to security.

> That no longer seems to be enforced on MacOS, which seems a bit
> surprising.

There are perhaps some additional privileges assigned to certain groups?

--
Chris

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