LXC BUG FIX

Doc/Sdi/apache.xml

@@ -417,6 +417,12 @@
         <listitem>
           <para>Install a <xref linkend="glo_Soft_Mysql"/> database server
           instance.</para>
+
+          <tip>
+            <para>In case you are working inside a LXC (Proxmox) container
+            environment you may have to consider <uri
+            xlink:href="https://stackoverflow.com/questions/59952398/mariadb-service-failed-to-set-up-mount-namespacing-permission-denied-failed">https://stackoverflow.com/questions/59952398/mariadb-service-failed-to-set-up-mount-namespacing-permission-denied-failed</uri>.</para>
+          </tip>
         </listitem>
 
         <listitem>