`nikto.conf`

- The Nikto configuration file. This sets Nikto's global options. Several nikto.conf files may exist and are parsed in the below order. As each configuration file is loaded is supersedes any previously set configuration:

  - System wide (e.g. /etc/nikto.conf)

  - Home directory (e.g. $HOME/nikto.conf)

  - Current directory (e.g. ./nikto.conf)

`${NIKTO_DIR}/plugins/db*`

- db files are the databases that Nikto uses to check for vulnerabilities and issues within the web server.

`${NIKTO_DIR}/plugins/*.plugin`

- All Nikto's plugins exist here. Nikto itself is just a wrapper script to manage CLI and pass through to the plugins.

`${NIKTO_DIR}/templates`

- Contains the templates for some of Nikto's output formats.