SPARTA is an excellent active information gathering tool. It is part of the default Kali setup. The following screenshot shows the home screen of SPARTA. In the left pane, you can simply add the IP/host you want to probe:

Upon feeding the IP/host to SPARTA, it quickly gets into the action by triggering various tools and scripts starting with Nmap. It does a quick port scan and goes further with service identification. It also provides screenshots of various web interfaces the target might be running and, most interestingly, it also automatically tries to retrieve passwords for various services running on the target system.

The following screenshot shows sample results from one of the SPARTA scans: