Ncrack - Network authentication cracking tool

Ncrack is a high-speed network authentication cracking tool.
It was built to help companies secure their networks by proactively testing all their hosts and networking devices for poor passwords.
Security professionals also rely on Ncrack when auditing their clients. Ncrack was designed using a modular approach, a command-line syntax similar to Nmap and a dynamic engine that can adapt its behaviour based on network feedback.
It allows for rapid, yet reliable large-scale auditing of multiple hosts.
Ncrack's features include a very flexible interface granting the user full control of network operations, allowing for very sophisticated bruteforcing attacks, timing templates for ease of use, runtime interaction similar to Nmap's and many more.
Protocols supported include RDP, SSH, http(s), SMB, pop3(s), VNC, FTP, and telnet.
You can donwload ncrack from here
Syntax : ncrack [options] [target and specification]
For target you can pass hostname, IP ecc..
-iL inputfile : Input from list of hosts/networks
-p : services will be applied to all non-standard notation hosts
-m : options will be applied to all services of this type
-g : options will be applied to every service globally
ssl : enable SSL
path name: used in modules like HTTP ('=' needs escaping if used)
-U filename: username file
-P filename: password file
-oN/-oX file: Output scan in normal and XML format, respectively, to the given filename.
-f: quit cracking service after one found credential
-6: Enable IPv6 cracking
For more informations type : ncrack -h

If you have a problem or you need some explanations just write under this post!