Requested URL /librenms not found on the server


I’m new in LibreNMS and was trying to install it. I received the following message: “The requested URL /librenms was not found on this server.”

Here is the config file of Apache:

<VirtualHost *:80>
    DocumentRoot /opt/librenms/html/

    CustomLog /opt/librenms/logs/access_log combined
    ErrorLog /opt/librenms/logs/error_log
    AllowEncodedSlashes NoDecode

    <Directory "/opt/librenms/html/">
        Require all granted
        AllowOverride All
        Options FollowSymLinks MultiViews

The named folder is available. How can I solve this problem?

Try without the /librenms

Also please post output . /validate.php