Re: Certbot error - SOLVED (?)

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On Sun, 2023-04-23 at 18:58 -0400, Jeffrey Walton wrote:
> On Sun, Apr 23, 2023 at 6:53 PM Jeffrey Walton <noloader@xxxxxxxxx>
> wrote:
> > 
> > On Sun, Apr 23, 2023 at 5:51 PM Patrick O'Callaghan
> > <pocallaghan@xxxxxxxxx> wrote:
> > > 
> > > On Mon, 2023-04-24 at 05:06 +0930, Tim via users wrote:
> > > > On Sun, 2023-04-23 at 12:21 -0700, T.C. Hollingsworth wrote:
> > > > > Webroot authentication is pretty simple, what trips most
> > > > > people up
> > > > > is
> > > > > it puts it in a dot directory /.well-known/acme-challenge/
> > > > > and a
> > > > > lot
> > > > > of open source packages include Apache rules that block
> > > > > dotfiles
> > > > > with
> > > > > errors to hide these files so see if you have any rules like
> > > > > that
> > > > > or
> > > > > specifically whitelist that path.
> > > > 
> > > > Access to files named like them is still allowed, they're just
> > > > not
> > > > shown in automatic directory listings in the browser.
> > > > 
> > > > Specific files like .htaccess and .htpasswd ought to be
> > > > blocked.
> > > 
> > > I had a look at /var/log/httpd/error_log and found this:
> > > 
> > >     httpd: could not open error log file
> > > /var/www/bree.org.uk/error.log
> > > 
> > > I rechecked and that file definitely exists and is writable by
> > > root
> > > (which httpd runs as). However a suspicion arose and I decided to
> > > turn
> > > off SElinux and reload.
> > > 
> > > And it worked. Not only that, but certbot worked as well:
> > > 
> > > # httpd -t -D DUMP_VHOSTS
> > > VirtualHost configuration:
> > > *:80                   bree.org.uk
> > > (/etc/httpd/conf.d/bree.conf:1)
> > > *:443                  is a NameVirtualHost
> > >          default server bree.org.uk (/etc/httpd/conf.d/bree-le-
> > > ssl.conf:2)
> > >          port 443 namevhost bree.org.uk (/etc/httpd/conf.d/bree-
> > > le-ssl.conf:2)
> > >          port 443 namevhost bree.org.uk
> > > (/etc/httpd/conf.d/ssl.conf:56)
> > > 
> > > I'm well aware that you had mentioned SElinux earlier, and I had
> > > definitely done tests having turned it off, but clearly I missed
> > > something.
> > > 
> > > I may have caused the problem by changing ownership of some files
> > > to
> > > apache:apache without considering their SElinux context. For the
> > > time
> > > being I'm keeping setenforce=0 until I can figure this out
> > > (suggestions
> > > are of course welcome).
> > > 
> > > Effusive thanks to the multiple people who chipped in with ideas.
> > 
> > I imagine Apache should work out-of-the-box with Fedora. I would be
> > surprised if Fedora shipped a broken one.
> > 
> > This is an unusual place:
> > 
> >     > httpd: could not open error log file
> >     > /var/www/bree.org.uk/error.log
> > 
> > I don't think that will work.
> > 
> > Move the log file to /var/log, relabel your filesystem, and then
> > reboot:
> > 
> >    sudo fixfiles -B onboot
> 
> And to expand on this... Under SELinux, the log location needs a
> httpd_log_t context:
> 
> # ls -AlZ /var/log/ | grep -i -E 'apache|nginx'
> drwx--x--x. 2 root   root            system_u:object_r:httpd_log_t:s0
>            4096 Apr 10 20:00 nginx
> 
> Relabeling should fix it.

I've done that (i.e. moved things back to the more usual /var/www and
/var/log directories, and relabelled. Seems to work now.

I had originally been following an online guide which gave the more
complicated setup rather than the default. That'll teach me to run
before I can walk.

Thanks

poc
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