description:
Network authentication cracking tool.
Ncrack is an open source tool for network authentication cracking. It is designed to use a dynamic engine that can adapt to different network conditions for high-speed parallel cracking. Ncrack can also be extensively fine-tuned for special situations, although the default parameters are universal enough to cover almost all situations. It is built on a modular architecture and can be easily extended to support other protocols. Ncrack is designed for companies and security professionals to quickly and reliably audit default or weak passwords for large networks. It can also be used to perform quite complex and intensive brute force attacks on a single service.
Warning
Ncrack is a project that started in the summer of 2009. Although it has been useful for some purposes, it is still unfinished. It is beta quality software. You can help by testing it and reporting any issues, as described in the "Errors" section.
The output of Ncrack is a list of credentials (if any) found for each specified target. If the user selects this option, Ncrack can also print an interactive status report of the progress so far and other debugging information that may help track the problem.
Example 1 shows a typical Ncrack scan. The only Ncrack parameters used in this example are the two target IP addresses and the corresponding port for each port. Two example ports 21 and 22 will automatically resolve to the default services listening on them: ftp and ssh.
Example 1. Representative Ncrack scan:
$ ncrack 10.0.0.130:21 192.168.1.2:22
Ncrack 0.6 (http://ncrack.org) will be launched at 22:10 on EAST, January 3, 2016
在10.0.0.130 21 / tcp上发现ftp的凭据：
10.0.0.130 21/tcp ftp: admin hello1
在192.168.1.2 22 / tcp上发现ssh的凭据：
192.168.1.2 22/tcp ssh: guest 12345
192.168.1.2 22/tcp s