After installing ipman this error happens. Mod_rewrite error It seems your Apache is not set up properly to handle URL rewrites.Please make sure all the requirements are set properly! 1.) Define Base Make sure BASE directive is set for your installation. This is used to properly detect phpIPAM directory. It must be set in config.php and in .htaccess Detected BASE: / 2.) Enable mod_rewrite Search for Directory directive in default apache config (or vhost config) and add/change it to vi /etc/apache2/sites-enabled/000-default Options FollowSymLinks AllowOverride all Order allow,deny Allow from all Tried several things but does not work. Can anyone suggest a way forward, Thanks.