debian - Apache 2.4 reload fails

My Apache won't reload after doing some changes, in this case after adding a new VHOST via Webmin.
It's not the first time it happens, last time I resolved reinstalling Apache, indeed not a satisfactory way to solve the problem.

In Webmin I get this error

Failed to start apache :
 :

Starting apache2 (via systemctl): apache2.service.

So I try to reload Apache manually vis ssh

This is what happens

root@myvps:/# /etc/init.d/apache2 reload
Reloading apache2 configuration (via systemctl): apache2.serviceJob for apache2.service failed. See 'systemctl status apache2.service' and 'journalctl -xn' for details. failed!

So this is the journalctl -xn response

Jan 04 08:55:51 myvps systemd[1]: Reload failed for LSB: Apache2 web server.
-- Subject: Unit apache2.service has finished reloading its configuration
-- Defined-By: systemd
-- Support: lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit apache2.service has finished reloading its configuration
--

-- The result is failed.
Jan 04 08:56:01 myvps CRON[3403]: pam_unix(cron:session): session opened for user root by (uid=0)
Jan 04 08:56:01 myvps CRON[3404]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
Jan 04 08:56:01 myvps CRON[3403]: pam_unix(cron:session): session closed for user root
Jan 04 08:56:02 myvps systemd[1]: Reloading LSB: Apache2 web server.
-- Subject: Unit apache2.service has begun with reloading its configuration
-- Defined-By: systemd
-- Support: freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit apache2.service has begun with reloading its configuration

Jan 04 08:56:02 myvps systemd[1]: Failed to reset devices.list on /system.slice/apache2.service: No such file or directory
Jan 04 08:56:03 myvps apache2[3420]: Reloading web server: apache2 failed!
Jan 04 08:56:03 myvps apache2[3420]: Apache2 is not running ... (warning).
Jan 04 08:56:03 myvps systemd[1]: apache2.service: control process exited, code=exited status=1
Jan 04 08:56:03 myvps systemd[1]: Reload failed for LSB: Apache2 web server.
-- Subject: Unit apache2.service has finished reloading its configuration
-- Defined-By: systemd
--
-- Unit apache2.service has finished reloading its configuration
--

-- The result is failed.

and this is the systemctl status apache2.service one

Jan 04 09:23:43 myvps apache2[3819]: Action 'start' failed.
Jan 04 09:23:43 myvps apache2[3819]: The Apache error log may have more information.
Jan 04 09:23:43 myvps apache2[3819]: .
Jan 04 09:23:43 myvps systemd[1]: Started LSB: Apache2 web server.
-- Subject: Unit apache2.service has finished start-up

-- Defined-By: systemd
-- Support: lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit apache2.service has finished starting up.
--
-- The start-up result is done.
Jan 04 09:24:03 myvps systemd[1]: Reloading LSB: Apache2 web server.
-- Subject: Unit apache2.service has begun with reloading its configuration
-- Defined-By: systemd
--

-- Unit apache2.service has begun with reloading its configuration
Jan 04 09:24:03 myvps systemd[1]: Failed to reset devices.list on /system.slice/apache2.service: No such file or directory
Jan 04 09:24:03 myvps apache2[3868]: Reloading web server: apache2 failed!
Jan 04 09:24:03 myvps apache2[3868]: Apache2 is not running ... (warning).
Jan 04 09:24:03 myvps systemd[1]: apache2.service: control process exited, code=exited status=1
Jan 04 09:24:03 myvps systemd[1]: Reload failed for LSB: Apache2 web server.
-- Subject: Unit apache2.service has finished reloading its configuration
-- Defined-By: systemd
--
-- Unit apache2.service has finished reloading its configuration

--
-- The result is failed.

These are the caracteristics of the VPS

• Debian Linux 8


• Apache 2.4.10


• Webmin 1.780



• Kernel and CPU Linux 2.6.32-042stab108.8 on x86_64


• BIND 9.9.5

some others details from the Apache error log:

[Mon Jan 04 05:16:05.615503 2016] [mpm_event:notice] [pid 367:tid 140186227066752] AH00489: Apache/2.4.10 (Debian) OpenSSL/1.0.1k configured -- resuming normal operations
[Mon Jan 04 05:16:05.615527 2016] [core:notice] [pid 367:tid 140186227066752] AH00094: Command line: '/usr/sbin/apache2'
[Mon Jan 04 06:22:05.208150 2016] [core:error] [pid 428:tid 140185949918976] [client clientIP:clientPort] AH00135: Invalid method in request quit
[Mon Jan 04 08:34:33.316012 2016] [mpm_event:notice] [pid 367:tid 140186227066752] AH00493: SIGUSR1 received.  Doing graceful restart

(98)Address already in use: AH00072: make_sock: could not bind to address vhostIp:vhostPort
[Mon Jan 04 08:34:33.343511 2016] [mpm_event:alert] [pid 367:tid 140186227066752] no listening sockets available, shutting down
[Mon Jan 04 08:34:33.343518 2016] [:emerg] [pid 367:tid 140186227066752] AH00019: Unable to open logs, exiting

my apache2.conf
http://pastebin.com/xcedmPi0

my VirtualHost configurations files
000-default.conf

http://pastebin.com/QYgMtTaK

webmin.conf
pastebin.com/wFAe1uyS

Anybody could help?

Thanks.

Answer

It looks like from the error log, you have either misconfigured your virtualhost or duplicate Listen 80 entries in your apache config files.

(98)Address already in use: AH00072: make_sock: could not bind to
address vhostIp:vhostPort

In your default virtualhost config file, try changing to and restart apache. For a name based virtual host you don't need to specify ip address.

Also check your /etc/apache2/ports.conf file for possible duplicate entry for port declaration.

Update from OP: Problem was solved by deleting a line in the ports.conf Listen 443 Listen vpsIp:5673 (line added by Webmin during the failed vhost creation)