Adding knowledge about not using ports below 1024 on unix-based OS

[tsimiz]

There is at least one open issue at az-cli GitHub about getting errors with 'az network bastion tunnel' command when using local port 22 to open the tunnel on unix-based operating system. As ports below 1024 are privileged ports only accessible by root I would recommend that the information about this is added into examples.

[prmerger-automator]

@tsimiz : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

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[ttorble]

@cherylmc

Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[v-dirichards]

I sent an email to the content owner today.

@MicrosoftDocs/public-repo-pr-review-team

[cherylmc]

Product team is investigating.

[v-ccolin]

I sent an email to the content owner today.

@MicrosoftDocs/public-repo-pr-review-team

[cherylmc]

#assign:isamorris99

[v-dirichards]

@isamorris99 Could you review this proposed update to the article and enter #sign-off in a comment if it's ready to merge?

Thanks!