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Re: FreeBSD Clean Install nginx.pid Permissions Errors

Francis Daly
July 14, 2017 09:30AM
On Thu, Jul 13, 2017 at 06:58:02PM -0400, Viaduct Lists wrote:

Hi there,

> But sudo nginx -t gets rid of the error on nginx.pid
>
> That whole user/group issue on the user directive in nginx.conf is confusing as it ignores any attempt at using user root;.

In unix land, usually, if a process starts running as root, then it is
able to "switch" to run as another user. If a process starts running as
non-root, it is not able to switch to run as another user.

And (usually) only root is able to bind() to port 80.

(Exceptions exist, but this is probably good enough for now.)

So -- if you start the nginx process as root (either by running it as
root, or by running it under "sudo"), then nginx can listen on port 80
and can switch to whatever user/group is in the config file after it is
listening on port 80.

If you start the nginx process as not-root, then it will probably fail
to listen on port 80, and fail to open any root-only files, and fail to
switch to whatever user/group is in the config file.

That seems to be what is happening here, based on the error logs shown.

f
--
Francis Daly francis@daoine.org
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Subject Author Posted

FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 13, 2017 09:38AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Francis Daly July 13, 2017 06:48PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 13, 2017 07:00PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Francis Daly July 14, 2017 09:30AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 14, 2017 10:42AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Francis Daly July 14, 2017 11:00PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 15, 2017 04:48AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

nanaya July 15, 2017 05:06AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 15, 2017 05:58AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

nanaya July 15, 2017 06:26AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 15, 2017 11:46AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

nanaya July 15, 2017 12:10PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

gariac July 13, 2017 09:32PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 14, 2017 10:40AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Jim Ohlstein July 14, 2017 11:00AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Alberto Castillo July 14, 2017 11:06AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

gariac July 14, 2017 11:52AM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Alberto Castillo July 14, 2017 12:50PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

gariac July 14, 2017 04:24PM

Re: FreeBSD Clean Install nginx.pid Permissions Errors

Viaduct Lists July 14, 2017 01:34PM



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