NagVis contains several demo maps on initial installation. There is also a rotation defined to give you an example of the features of NagVis. Certainly Nagvis has a lot more features than we can show you with this demo configurations. So you should read the documentation and be creative.
If you are familiar with NagVis you can delete these demonstration maps and rotation without problems.
NagVis is based on several configuration files. The main configuration file stores the basic and global configuration options.
The map specific configuration options are stored in map configuration files located in
A special type of maps are the automaps. Take a look at the automap configuration documentation for details.
The whole NagVis configuration can be changed using the web based configuration dialogs.
By default NagVis uses an internal user and permission database (SQLite) for handling authentication and authorisation. Nagvis uses a role based permission system. After installation there are two default users defined:
The following roles with these permissions are available:
These default users and roles should be sufficient for the beginning. You may delete these users and roles but please be aware not to delete the last administrative user.
Please be sure that you have a current PHP version, that all required modules are installed for NagVis and the backend you want to use and that GraphViz is already there. Some PHP modules might already be included in the base package (please use "php -m" to check).
install.log for errors.
Please check the Apache logs for "permission denied" messages. It is most likely that SElinux is active. Please disable it (setenforce 0) or allow NagVis to access the files.
Please check the Apache logs for "memory limit exceeded" messages. It is most likely that the memory settings in php.ini have to be increased. Please restart your WebServer afterwards.
Please take a look at the doc section of the official website (namely "FAQ" and "Often reported errors") as well. If this doesn't help then read on.
You might seek help at the official NagVis website or use the monitoring portal which offers a board for NagVis questions.
In any case please provide at LEAST information about
grep "^[^;|^$]" <config file>(if you have a configuration related issue). Replace "<config file>" by the name of the config file which might be in error