Depending on the error returned by the OS, httpd can't do much in some
cases. It would be useful if you were to share the verbatim error, as a
start.

On Mon, 4 Feb 2019 at 13:17, Jeff Cauhape <jpcauh...@detr.nv.gov> wrote:

> Yes, it was the Secure Linux preventing the use of the port.  I wonder if
> the error message should be broadened to include
> the possibility that security policies are not allowing it's use, rather
> than just assuming that the port is not available because
> it's already in use.
>
> I added the port to the security policy with this command:
>
> # semanage port -a -t http_port_t -p tcp 280
>
> I had already added the port to the firewall
>
> [root@web1e conf]# firewall-cmd --info-zone=public
>
> public (active)
>   target: default
>   ...
>   services: dhcpv6-client https http ssh
>   ports: 9100/tcp 9101/tcp   ...  280/tcp
>  ...
>
> Jeffrey Cauhape – IT Professional III – Linux and Solaris Administrator
> Nevada Department of Employment, Training and Rehabilitation
> (775) 684-3804 (office)     jpcauh...@detr.nv.gov
>
> -----Original Message-----
> From: Jeff Cauhape [mailto:jpcauh...@detr.nv.gov]
> Sent: Monday, February 4, 2019 8:29 AM
> To: users@httpd.apache.org
> Subject: RE: [users@httpd] Stupid question time - VirtualHost
>
> Luca,
>
> Thanks for the suggestion. It looks like we may have stumbled over the
> Secure Linux policy settings. I'll know more later this morning. I'll post
> a follow up when I figure it out.
>
> Thanks,
>
> Jeffrey Cauhape – IT Professional III – Linux and Solaris Administrator
> Nevada Department of Employment, Training and Rehabilitation
> (775) 684-3804 (office)     jpcauh...@detr.nv.gov
>
> -----Original Message-----
> From: Luca Toscano [mailto:toscano.l...@gmail.com]
> Sent: Saturday, February 2, 2019 11:29 AM
> To: users@httpd.apache.org
> Subject: Re: [users@httpd] Stupid question time - VirtualHost
>
> Hi Jeff!
>
> Il giorno ven 1 feb 2019 alle ore 16:02 Jeff Cauhape <
> jpcauh...@detr.nv.gov> ha scritto:
> >
> > My usage of Apache has been pretty plain vanilla, and now I am
> > required to
> >
> > add a virtual host to a system, and I’m wondering what doing wrong. My
> > hunch
> >
> > is that it’s obvious to others.
> >
> >
> >
> > I am using Apache 2.4.6 as reported by httpd -v
> >
> >
> >
> > In my httpd.conf file I have:
> >
> > …
> >
> > Listen web1e.detr.nv:80
> >
> > Listen web1e.detr.nv:280
> >
> > …
> >
> > and
> >
> > <VirtualHost _default_:280>
> >
> >         ServerName survey.nvdetr.org
> >
> >         UseCanonicalName Off
> >
> >         DocumentRoot "/var/www/html/survey/"
> >
> >         ScriptAlias /cgi-bin/ "/var/www/cig-bin/survey/cgi-bin/"
> >
> > …
> >
> > </VirtualHost>
> >
> >
> >
> > Question: Isn’t it true that I must have a Listen directive for each
> VirtualHost?
> >
> >
> >
> > However, if I try to start the apache server configured like this I
> > get an error message that
> >
> > the port 8090 (or any other number I choose) is already in use and not
> > available. This causes
> >
> > apache to fail to start.
> >
> >
> >
> > # lsof -I :280
> >
> >
> >
> > and
> >
> >
> >
> > # netstat -ltnp
> >
> >
> >
> > Do not show the port in use by anything. I can change the port number
> > to anything I choose
> >
> > and the results are the same. This suggests to me that the problem is in
> apache config somewhere.
> >
> >
> >
> > If I comment out the Listen director for the VirtualHost, I don’t get
> > the error, but I don’t see any
> >
> > process listening on the port either.
> >
> >
> >
> > Ideas? Suggestions?
>
> Did you check https://httpd.apache.org/docs/2.4/vhosts/examples.html ?
> There are useful examples in there, it should clarify all doubts.
>
> Hope that helps!
>
> Luca
>
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