Weird privilege errors on Ubuntu 20.04

[hgv]

Yes, certainly.

drwxr-xr-x root root /etc
drwxr-xr-x root root /etc/ssl
drwxr-x--- root ssl-cert /etc/ssl/private


Sergey A. Osokin Wrote:
-------------------------------------------------------
> Hi,
> 
> Could you check and show permissions on /etc/ssl/private, /etc/ssl,
> and /etc directories.
> 
> Thanks.
> 
> -- 
> Sergey
> 
> On Tue, Jun 08, 2021 at 03:57:59PM -0400, hgv wrote:
> > Hi Sergey,
> > 
> > Adding www-data user to ssl-cert group doesn't help.
> > 
> > root at k2# usermod -a -G ssl-cert www-data
> > 
> > root at k2# getent group ssl-cert
> > ssl-cert:x:112:postgres,www-data
> > 
> > 
> > Sergey A. Osokin Wrote:
> > -------------------------------------------------------
> > > Hi there,
> > > 
> > > hope you're doing well.
> > > 
> > > On Tue, Jun 08, 2021 at 11:46:32AM -0700, Palvelin Postmaster
> wrote:
> > > > I wonder what can cause these weird error log entries? The log
> > > entries indicate a PID which doesn’t exist. Does nginx launch some
> > > temporary process when it starts?
> > > > 
> > > > Nginx 1.21.0 on Ubuntu 20.04.
> > > > 
> > > > root at k2:~# systemctl restart nginx
> > > > 
> > > > root at k2:~# tail /var/log/nginx/error.log
> > > > 2021/06/08 21:25:32 [warn] 1287733#1287733: the "user" directive
> > > makes sense only if the master process runs with super-user
> > > privileges, ignored in /etc/nginx/nginx.conf:21
> > > > 2021/06/08 21:25:32 [emerg] 1287733#1287733: cannot load
> certificate
> > > key "/etc/ssl/private/nginx-selfsigned.key": BIO_new_file() failed
> > > (SSL: error:0200100D:system library:fopen:Permission
> > > denied:fopen('/etc/ssl/private/nginx-selfsigned.key','r')
> > > error:2006D002:BIO routines:BIO_new_file:system lib)
> > > 
> > > Seems like an attempt to start nginx without root privileges.
> > > 
> > > > root at k2:~# ls -lh /etc/ssl/private/ |grep selfsigned
> > > > -rw-r----- 1 root ssl-cert 1.7K Jul  8 17:12
> nginx-selfsigned.key
> > > > 
> > > > root at k2:~# cat /etc/nginx/nginx.conf |grep ^user
> > > > user www-data;
> > > > 
> > > > root at k2:~# ps -auxw |grep nginx
> > > > root     1287600  0.0  0.0  56148  6504 ?        Ss   21:25  
> 0:00
> > > nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
> > > > www-data 1287601  0.7  0.1  58544 15652 ?        S    21:25  
> 0:05
> > > nginx: worker process
> > > > www-data 1287602  0.0  0.1  57556 13696 ?        S    21:25  
> 0:00
> > > nginx: worker process
> > > > www-data 1287603  0.0  0.1  56392  9184 ?        S    21:25  
> 0:00
> > > nginx: cache manager process
> > > 
> > > Could you check `www-data' user permission, and add, if necessary,
> to
> > > the `ssl-cert' group.
> > > 
> > > -- 
> > > Sergey Osokin
> > > _______________________________________________
> > > nginx mailing list
> > > nginx at nginx.org
> > > http://mailman.nginx.org/mailman/listinfo/nginx
> > 
> > Posted at Nginx Forum:
> https://forum.nginx.org/read.php?2,291799,291801#msg-291801
> > 
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Posted at Nginx Forum: https://forum.nginx.org/read.php?2,291799,291803#msg-291803