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A comment on Why is Control Center on Monterey listening on ports?. Parent comment

Re:Why is Control Center on Monterey listening on ports? by tomklein on Monday November 22, 2021 @03:02AM (#29303965)
The first 1024 are reserved and you usually can freely choose the ones greater than that. You can also use .local for local domains.
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Re:Why is Control Center on Monterey listening on ports? by SturgeonsLaw on Monday November 22, 2021 @04:08AM (#29304371)
Using .local is no longer recommended since it's used for mDNS. Apple devices in particular have issues resolving .local addresses.

Current best practice is to use a subdomain of a domain you control for internal stuff. Makes getting certs for internal hosts easier too if you can be bothered.

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Re:Why is Control Center on Monterey listening on ports? by AndyJames on Monday November 22, 2021 @08:12AM (#29305963)
1-1024 are reserved for root so you can still technically use them. Port 0 is the only one truly reserved/impossible to used
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