Overview of services running on Port 5432 TCP.
~447 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
postgresql	PostgreSQL DB	404617	90.474
postgresql	PostgreSQL	13600	3.041
no match	-/-	12366	2.765
http		3712	0.83
http	SonicWALL	3459	0.773
chat	AIM or ICQ server	2446	0.547
http	lighttpd	1134	0.254
http	AIM	645	0.144
http	Microsoft IIS httpd	556	0.124
http	Apache	455	0.102
ssh	OpenSSH	326	0.073
http	thttpd	277	0.062
http	Microsoft HTTPAPI httpd	241	0.054
upnp	Netgear WGU624 WAP UPnP	154	0.034
vnc	VNC	136	0.03
http	Boa HTTPd	122	0.027
http	DrcomServer1.0	119	0.027
ssh		102	0.023
http	Netwave IP camera http config	95	0.021
http	Avtech AVN801 network camera	90	0.02
http	Apache Tomcat/Coyote JSP engine	88	0.02
mysql	MySQL	84	0.019
http	GoAhead-Webs	83	0.019
pgbouncer	PgFoundry PgBouncer PostgreSQL connection pooler	82	0.018
telnet		81	0.018
Server: Gateway Controller 3560, S; description: " Jan-24-2012 10"	N	77	0.017
http	PDR-M800	50	0.011
http	Gateway Controller 3560	48	0.011
ftp	FileZilla ftpd	48	0.011
http	nginx	47	0.011
http	Netgear DG834 router http config	47	0.011
http	GoAhead-Webs embedded httpd	43	0.01
dominoconsole	Lotus Domino Console	42	0.009
http	JAWS	36	0.008
http	mini_httpd	34	0.008
arcserve	ARCserve Discovery	34	0.008
ftp	Microsoft ftpd	33	0.007
ftp	vsftpd	32	0.007
http	MiniServ	30	0.007
http-proxy	Squid http proxy	29	0.006
http-proxy	EZproxy web proxy	26	0.006
http	http server 1.0	26	0.006
ftp		25	0.006
ssh	Dropbear sshd	24	0.005
smtp	Microsoft ESMTP	23	0.005
http	uc-httpd	23	0.005
ftp	Pure-FTPd	23	0.005
http	Hikvision-Webs	22	0.005
ftp	ProFTPD	22	0.005
http	Netgear DG834G router http config	21	0.005
http	GeoVision GeoHttpServer for webcams	21	0.005
ssl	multi-vendor SSL	20	0.004
smtp		20	0.004
ssl	TLS	19	0.004
smtp	Microsoft Exchange smtpd	18	0.004
http	Mbedthis-Appweb	17	0.004
http	DVR Systems webcam http interface	17	0.004
vnc	RealVNC Enterprise	16	0.004
vnc	RealVNC Personal	15	0.003
http	WYM httpd	15	0.003
http	World Client WDaemon httpd	15	0.003
http-proxy	Ncat http proxy	15	0.003
http	Jetty	15	0.003
http	GoAhead-Webs httpd	15	0.003
directconnect	Direct Connect P2P	15	0.003
telnet	Alcatel/Thomson SpeedTouch DSL router admin interface	14	0.003
ovm-manager	Oracle VM Manager	14	0.003
irc-proxy	psyBNC	14	0.003
http-proxy	MikroTik http proxy	14	0.003
http	Gadspot/Avtech AV787 webcam http config	14	0.003
greenplum	Greenplum database	14	0.003
java-rmi	Java RMI	13	0.003
http	WEBrick httpd	13	0.003
http	RemotelyAnywhere remote PC management httpd	13	0.003
http-proxy	ziproxy http proxy	13	0.003
http	David WebBox httpd	12	0.003
http	Cross Web Server	12	0.003
http	Allegro RomPager	12	0.003
ftp	vsftpd (before 2.0.8) or WU-FTPD	12	0.003
vnc		11	0.002
upnp	Portable SDK for UPnP devices	11	0.002
http-proxy	F5 BIG-IP load balancer http proxy	11	0.002
ftp	Serv-U ftpd	11	0.002
vnc	Apple remote desktop vnc	10	0.002
smtp	Postfix smtpd	10	0.002
openvpn	OpenVPN	10	0.002
http	uTorrent WebUI	10	0.002
http	D-Link DIR-300 WAP http admin	10	0.002
http	AIM HTTP	10	0.002