Overview of services running on Port 27017 TCP.
~27 Thousand IP addresses observed from May to December 2012
To get raw lists of the data go to Download. For an explanation of what this data is and how it was obtained, see Paper.

Servicename	Product	Count	Percent
mongodb	MongoDB	15222	56.195
no match	-/-	6017	22.213
irc	Dancer ircd	3227	11.913
chat	AIM or ICQ server	1210	4.467
http	lighttpd	311	1.148
http		283	1.045
http	Microsoft IIS httpd	125	0.461
http	Microsoft HTTPAPI httpd	87	0.321
ssh	OpenSSH	77	0.284
ssh		66	0.244
irc-proxy	psyBNC	42	0.155
telnet		40	0.148
vnc	VNC	35	0.129
lexlm	Lexmark language monitor	27	0.1
socks5		19	0.07
http	nginx	18	0.066
http	Boa HTTPd	17	0.063
ftp	Microsoft ftpd	17	0.063
mysql	MySQL	15	0.055
ftp		15	0.055
smtp	Microsoft ESMTP	12	0.044
http	Jetty	11	0.041
directconnect	Direct Connect P2P	11	0.041
smtp		10	0.037