Hello,

I have the exact same issue, but only while updating centreon from version 24.04.07 to 24.10.01.

When I try to create a new host (and only when I perform that operation), I have the following message :

My certificate is signed by a CA of my own (almost like described in that link) and my virtualhost looked like that :

# Section added by Centreon Install Setup
#
Define base_uri "/centreon"
Define install_dir "/usr/share/centreon"

ServerTokens Prod

<VirtualHost *:80>
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
</VirtualHost>

<VirtualHost *:443>
    Header set X-Frame-Options: "sameorigin"
    Header always edit Set-Cookie ^(.*)$ $1;HttpOnly;SameSite=Strict
    ServerSignature Off
    TraceEnable Off

    <IfModule mod_ssl.c>
       SSLEngine On
       SSLCertificateFile /etc/apache2/ssl/monitoring.xxx.local.crt
       SSLCertificateKeyFile /etc/apache2/ssl/xxx.local.key
       SSLCACertificateFile /etc/apache2/ssl/xxxCA.pem
    </IfModule>

    Alias ${base_uri}/api ${install_dir}
    Alias ${base_uri} ${install_dir}/www/

   <IfModule mod_brotli.c>
        AddOutputFilterByType BROTLI_COMPRESS text/html text/plain text/xml text/css text/javascript application/javascript application/json
    </IfModule>

    AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript application/json

    <LocationMatch ^\${base_uri}/?(?!api/latest/|api/beta/|api/v[0-9]+/|api/v[0-9]+\.[0-9]+/)(.*\.php(/.*)?)$>
        ProxyPassMatch "fcgi://127.0.0.1:9042${install_dir}/www/$1"
    </LocationMatch>

    <LocationMatch ^\${base_uri}/?(authentication|api/(latest|beta|v[0-9]+|v[0-9]+\.[0-9]+))/.*$>
        ProxyPassMatch "fcgi://127.0.0.1:9042${install_dir}/api/index.php/$1"
    </LocationMatch>

    ProxyTimeout 300
    ErrorDocument 404 ${base_uri}/index.html
    Options -Indexes +FollowSymLinks

    <IfModule mod_security2.c>
        # https://github.com/SpiderLabs/ModSecurity/issues/652
        SecRuleRemoveById 200003
    </IfModule>

    <Directory "${install_dir}/www">
        DirectoryIndex index.php
        AllowOverride none
        Require all granted
        FallbackResource ${base_uri}/index.html
    </Directory>

    <Directory "${install_dir}/api">
        AllowOverride none
        Require all granted
    </Directory>

    <If "'${base_uri}' != '/'">
        RedirectMatch ^/$ ${base_uri}
    </If>
</VirtualHost>

So to add a new host I need to disable SSL on the Virtualhost and access to Centreon in plain text …

Do someone has a workaround ?

Thank you very much for your time.

Regards,

Thierry