ntp-fingerprint

ntp-fingerprtint is a command line perl script for active fingerprinting the identify of the operating system the NTP server is running on.
 

Installation:

Available from here.

tar -zxvf ntp-fingerprint.tar-gz
 

Execution:
 

perl ntp-fingerprint.pl -t [ip_address]

Example Output:

$ perl ntp.pl -t 192.168.66.202
ntp-fingerprint.pl, , v 0.1
************* NTP server found at host 192.168.66.202 *******
#It was possible to gather the following information #
#from the remote NTP host 192.168.66.202 #
# Operating system: cisco #
*************************************************************

$ perl ntp.pl -t 192.168.66.200
ntp-fingerprint.pl, , v 0.1
************* NTP server found at host 192.168.66.200*********
#It was possible to gather the following information #
#from the remote NTP host 192.168.66.200 #
# NTP daemon:ôoversion=ntpd 4.2.0@1.1161-r Sun Nov 7 22:50:28 GMT 2004 (1) #
# Processor:i686 #
# Operating system:Linux/2.6.10-gentoo-r5 #
*************************************************************