Overview of services running on Port 873 TCP.
~207 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	Info	OS	Devicetype	Count	Percent
rsync			protocol version 30			139794	67.367
rsync			protocol version 29			31362	15.113
http						10478	5.049
rsync			protocol version 28			5411	2.608
rsync						4506	2.171
rsync			protocol version 26			3683	1.775
http	SonicWALL				firewall	3645	1.757
chat	AIM or ICQ server					1963	0.946
no match						1009	0.486
http	AIM	1.0				636	0.306
rsync			protocol version 27			546	0.263
ssl	SSLv3					504	0.243
http	lighttpd	1.4.29				419	0.202
http	lighttpd	1.4.19				385	0.186
tcpwrapped	BSD TCP Wrappers		rsync			147	0.071
rsync			protocol version 24			143	0.069
http	Microsoft IIS httpd	6.0		Windows		142	0.068
rsync			protocol version 31			99	0.048
ssh			protocol 1.5			92	0.044
http	Apache Tomcat/Coyote JSP engine	1.1				89	0.043
http	Microsoft HTTPAPI httpd	2.0	SSDP/UPnP	Windows		82	0.04
http	Netwave IP camera http config				webcam	78	0.038
http	Avtech AVN801 network camera	1.0	UPnP 1.0		webcam	69	0.033
http	lighttpd	1.4.28				65	0.031
http	GoAhead-Webs httpd					61	0.029
ssh	OpenSSH	4.5p1	FreeBSD 20061110; protocol 2.0	FreeBSD		54	0.026
http	GoAhead-Webs					53	0.026
http	PDR-M800	1.0				50	0.024
telnet						47	0.023
http	thttpd	2.24 26oct2003				42	0.02
http	thttpd	2.24				41	0.02
vnc	VNC		protocol 3.8			37	0.018
http	Apache					37	0.018
http	Microsoft IIS httpd					36	0.017
rsync			protocol version 25			29	0.014
rsync			protocol version 20			28	0.013
http	mini_httpd	1.19 19dec2003				28	0.013
http	Boa HTTPd	0.94.14rc21				28	0.013
http	Microsoft IIS httpd	7.5		Windows		27	0.013
http-proxy	Squid http proxy	2.7.STABLE9				25	0.012
http	Hikvision-Webs					24	0.012
arcserve	ARCserve Discovery					23	0.011
http	Apache		SSL-only mode			22	0.011
http-proxy	Squid http proxy	2.6.STABLE12				21	0.01