Overview of services running on Port 540 TCP.
~20 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	Version	Count	Percent
http	SonicWALL		3504	17.047
http			2986	14.527
no match	-/-	-/-	2797	13.607
uucp	Solaris uucpd		2254	10.966
chat	AIM or ICQ server		2172	10.567
uucp	Taylor uucpd		1337	6.505
uucp	SunOS uucpd		813	3.955
http	AIM	1.0	634	3.084
http	lighttpd	1.4.29	491	2.389
http	lighttpd	1.4.19	412	2.004
http	lighttpd	1.4.30	285	1.387
http	Microsoft IIS httpd	6.0	129	0.628
http	DrcomServer1.0		120	0.584
ssh			97	0.472
http	Netwave IP camera http config		85	0.414
http	Microsoft HTTPAPI httpd	2.0	85	0.414
http	GoAhead-Webs		81	0.394
http	Apache Tomcat/Coyote JSP engine	1.1	80	0.389
http	Apache		74	0.36
http	Microsoft IIS httpd		71	0.345
http	thttpd	2.24	65	0.316
http	Avtech AVN801 network camera	1.0	62	0.302
vnc	VNC		61	0.297
uucp	AIX uucpd		60	0.292
telnet			59	0.287
http	thttpd	2.24 26oct2003	52	0.253
http	PDR-M800	1.0	51	0.248
http	Apache	2.2.3	38	0.185
http	Apache	2.2.14	38	0.185
http	Boa HTTPd	0.94.14rc21	34	0.165
arcserve	ARCserve Discovery		31	0.151
http	Apache	2.2.22	27	0.131
http	thttpd	2.25b	25	0.122
http	mini_httpd	1.19 19dec2003	24	0.117
ftp			24	0.117
http	uc-httpd	1.0.0	22	0.107
http	thttpd		22	0.107
http	Microsoft IIS httpd	7.5	22	0.107
http	Gadspot/Avtech AV787 webcam http config		22	0.107
http	Hikvision-Webs		21	0.102
http	GeoVision GeoHttpServer for webcams		20	0.097
pop3	qpopper		19	0.092
ftp	Microsoft ftpd		19	0.092
http	Mbedthis-Appweb	2.0.4	18	0.088
http	lighttpd	1.4.20	18	0.088
http	Apache	2.2.16	18	0.088
http	uTorrent WebUI		17	0.083
http-proxy	Squid http proxy	2.6.STABLE12	17	0.083
http	Microsoft IIS httpd	5.1	17	0.083
http	lighttpd		17	0.083
uucp	NetBSD uucpd		16	0.078
ssh	OpenSSH	4.3	15	0.073
http	GoAhead-Webs embedded httpd		15	0.073
http	Apache	2.2.15	15	0.073