Virtualmin sites not working when Apache port is changed

I followed the instructions here: but instead of using Varnish, I am using HAproxy to divert traffic either to my Virtualmin sites (Apache port 8080) or a docker container.

But for some reason, none of my virtualmin sites work (the Docker site works fine).

I have also played with the HAproxy config, switching the default_backend from loading my apache sites, to the docker site - it works for the docker site but not apache sites so the 'default_backend' definitely works (I commented out all other lines).

Here is my HAproxy config:

    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog
    # 2) configure local2 events to go to the /var/log/haproxy.log
    #   file. A line like the following can be added to
    #   /etc/sysconfig/syslog
    #    local2.*                       /var/log/haproxy.log
    log local2

    # chroot      /var/lib/haproxy
    pidfile     /var/run/
    maxconn     4000
    user        haproxy
    group       haproxy

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats

    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000

frontend http-in
        bind *:80
        default_backend main_apache_sites

        # Define hosts
        acl host_discourse hdr(host) -i

        # figure out which one to use
        use_backend discourse_docker if host_discourse

backend main_apache_sites
    server server1 cookie A check

backend discourse_docker
    server server2 cookie A check

All I get for my virtualmin sites is a blank page with:

Index of /

[ICO] Name Last modified Size Description

Are there any known problems where Virtualmin sites stop working when the Apache port is changed? Have I missed anything? Do you have any other advice which I could try?



What do you see in your browser when you hit one of your virtualmin sites with the url

It should show the site , not the directory listing of files as you were seeing via haproxy...

Tried this again tonight (as that's when the sites are at their quietest) but still the same.

Going to shows the site for some sites but not all (I think those have htaccess directives, such as for replacing the root index with a specific file).

Any other ideas I can try?

Edit: forgot to say that with Apache stopped, going to a domain says that a server can't be found, so HAproxy does seem to be channelling things to port 8080.

Are there any other settings in Virtualmin that need to be changed?

What about in Webmin > servers > apache > global > networking & addresses ? (Although the first field does pick up the change in port after you edit httpd.conf)

I don't believe you're seeing a Virtualmin bug there. I don't know of any issues when changing the ports, and we didn't run into any issues when we did so during the testing that Varnish setup that you saw.

It appears to be something that may require some configuration tweaks (though we may need to dig into it further to get an idea of what's going on).

The next step would be to do some troubleshooting to determine exactly what's going on.

The best place to do the troubleshooting for that would be over in the Forums though since you appear to be using Virtualmin GPL there.

What you may want to do is post a new Forum thread, and in that, include the issue you're seeing here, along with the Apache config that you have for some of your domains.

While I'm not familiar with HAproxy, it sounds like it'd be similar to how Varnish works.

Ok thanks - I'll try again tonight with a very basic HAproxy config and see if that makes any difference, if not I'll start a thread in the forum.

Should I link to this issue or just copy the contents of the first post?

Sorry for the delay -- yeah posting a link is fine. I'll take a look in a bit. Thanks for creating a new Forum thread!