[emerg] bind to 0000:80 failed 13: Permission denied

Mac reports an error when starting nginx

<code><span>[emerg]</span><span>bind</span>() <span>to</span> 0<span>.0</span><span>.0</span><span>.0</span><span>:80</span><span>failed</span> (13: <span>Permission</span><span>denied</span>)</code>

The reason is that root permissions are required when starting ports below 1024, so sudo ngin is enough.

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