Thanks for the suggestions. Here are the results:
dnessett@Mount:/etc/apache2$ grep -r Listen
sites-available/000-default.conf:Listen localhost:4443 ssl;
ports.conf:#Listen 80
ports.conf: Listen 4443
ports.conf: Listen 443
dnessett@Mount:/etc/apache2$
The ports.conf entry with Listen 443 is for mod_gnutls. Might this be the
problem? I am not familiar with mod_gnutls, but it does not appear in any other
active configuration file:
dnessett@Mount:/etc/apache2$ cat ports.conf
# If you just change the port or add more ports here, you will likely also
# have to change the VirtualHost statement in
# /etc/apache2/sites-enabled/000-default.conf
#Listen 80
<IfModule ssl_module>
Listen 4443
</IfModule>
<IfModule mod_gnutls.c>
Listen 443
</IfModule>
dnessett@Mount:/etc/apache2$ grep -r gnutls
ports.conf:<IfModule mod_gnutls.c>
dnessett@Mount:/etc/apache2$
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
The apache error log does not give much information on this problem:
dnessett@Mount:/var/log/apache2$ cat error.log.1
[Wed Dec 14 14:32:34.057530 2022] [mpm_event:notice] [pid 1085:tid 3082604736]
AH00489: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Wed Dec 14 14:32:34.057692 2022] [core:notice] [pid 1085:tid 3082604736]
AH00094: Command line: '/usr/sbin/apache2'
[Wed Dec 14 17:31:53.108447 2022] [mpm_event:notice] [pid 1085:tid 3082604736]
AH00491: caught SIGTERM, shutting down
[Wed Dec 14 22:16:33.935138 2022] [mpm_event:notice] [pid 1059:tid 3082719424]
AH00489: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Wed Dec 14 22:16:34.030023 2022] [core:notice] [pid 1059:tid 3082719424]
AH00094: Command line: '/usr/sbin/apache2'
[Wed Dec 14 22:18:39.347403 2022] [mpm_event:notice] [pid 1059:tid 3082719424]
AH00491: caught SIGTERM, shutting down
dnessett@Mount:/var/log/apache2$
There is a semicolon after the Listen localhost:4443. I was following the
instructions given in the sslh installation guide:
https://ostechnix.com/sslh-share-port-https-ssh/
<https://ostechnix.com/sslh-share-port-https-ssh/>
I have changed the references to localhost in the one Listen to 127.0.0.1, as
you suggest.
> On Dec 15, 2022, at 5:56 PM, Frank Gingras <[email protected]> wrote:
>
> Grep every single config file (recursively) for the Listen directive.
>
> On Thu, Dec 15, 2022 at 7:54 PM Daniel Ferradal <[email protected]
> <mailto:[email protected]>> wrote:
> What does the apache error log say (not systemd)?
>
> Also, am I seeing right? you specified "Listen localhost:4443 ssl;"
> with a semicolon at the end?
>
> Also specify it with ips , don't use names with Listen directive.
>
>
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