Overview of services running on Port 1234 TCP.
~59 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
no match	-/-	-/-	8275	13.942
http			7035	11.853
http	Httpd	1.0	5765	9.713
irc	Dancer ircd		3714	6.258
http	SonicWALL		3529	5.946
http	Boa HTTPd	0.94.13	2107	3.55
chat	AIM or ICQ server		1547	2.607
http	Virata-EmWeb	6.0.1	1428	2.406
http	Microsoft IIS httpd	6.0	971	1.636
http	WangWnagSimpleServer	1.0	844	1.422
http	Apache		717	1.208
http	AIM	1.0	651	1.097
http	Allegro RomPager	4.51 UPnP/1.0	617	1.04
http	Apache	2.2.16	594	1.001
remoting	MS .NET Remoting services		546	0.92
http	lighttpd	1.4.28	544	0.917
http	lighttpd	1.4.20	532	0.896
http	Netwave IP camera http config		522	0.88
http	lighttpd	1.4.29	507	0.854
http	lighttpd	1.4.19	488	0.822
http	ZNC IRC bouncer http config	0.097 or later	470	0.792
telnet			469	0.79
ssh	AllegroSoft RomSShell sshd	4.31	448	0.755
http	Allegro RomPager	4.07 UPnP/1.0	411	0.692
http	Jetty	8.0.y.z-SNAPSHOT	408	0.687
http	Boa HTTPd	0.94.14rc21	384	0.647
http	Avtech AVN801 network camera	1.0	382	0.644
asterisk	Asterisk Call Manager	1.1	376	0.634
ssh	AllegroSoft RomSShell sshd	4.61	369	0.622
irc-proxy	psyBNC	2.3.2-7	363	0.612
http	Microsoft IIS httpd	7.5	355	0.598
http	Microsoft IIS httpd		241	0.406
http	MikroTik router http config		240	0.404
http	MikroTik router config httpd		240	0.404
http	Apache Tomcat/Coyote JSP engine	1.1	234	0.394
http	Apache	2.2.22	223	0.376
http	HTTPD 1.0		217	0.366
http	Apache	2.2.9	207	0.349
telnet	VLC media player telnetd		184	0.31
telnet	Linux telnetd		166	0.28
tunnelvision	Tunnel Vision VPN info	2.30	162	0.273
http	GoAhead-Webs embedded httpd		161	0.271
http	GoAhead-Webs httpd		160	0.27
http	mini_httpd	1.19 19dec2003	158	0.266
http	Apache	2.2.3	158	0.266
http	uc-httpd	1.0.0	152	0.256
http	Microsoft IIS httpd	7.0	151	0.254
ftp			147	0.248
ftp	Microsoft ftpd		145	0.244
vnc	VNC		144	0.243
http-proxy	MikroTik http proxy		134	0.226
http	thttpd	2.25b 29dec2003	132	0.222
http	Microsoft-HTTPAPI	1.0	131	0.221
http	nginx		130	0.219
http	Microsoft HTTPAPI httpd	2.0	128	0.216
minecraft-votifier	Votifier plugin for Minecraft game	1.7	127	0.214
http	Apache	2.2.14	124	0.209
monopd	monopd	0.9.3	123	0.207
http	Fnord httpd	1.9	118	0.199
http	GeoVision GeoHttpServer for webcams		116	0.195
asterisk	Asterisk Call Manager	1.0	114	0.192
http	udpxy multicast UDP-to-HTTP		110	0.185
ssh	MikroTik RouterOS sshd		109	0.184
http	DVR Systems webcam http interface		109	0.184
http	DrcomServer1.0		109	0.184
ssh			103	0.174
http	Draytek Vigor ADSL router webadmin		101	0.17
http	GoAhead-Webs		99	0.167
http	Gadspot/Avtech AV787 webcam http config		91	0.153
http	Siemens Gigaset A580 or S450 VoIP phone http config		89	0.15
http	D-Link DIR-300 WAP http admin		85	0.143
directconnect	Direct Connect P2P		85	0.143
http	Hikvision-Webs		83	0.14
http	Cross Web Server		80	0.135
ssl	TLS	1.0	76	0.128
irc-proxy	psyBNC	2.3.1	75	0.126
http	lighttpd	1.4.26	75	0.126
ssh	OpenSSH	4.3	73	0.123
socks5			73	0.123
smtp	Postfix smtpd		71	0.12
http	Apache	2.2.21	71	0.12
http	thttpd	2.24 26oct2003	70	0.118
http	Apache	2.2.17	69	0.116
http	DD-WRT milli_httpd		65	0.11
http	PDR-M800	1.0	64	0.108
http	Netgear DG834G router http config		64	0.108
http	CCProxy		64	0.108
http	uhttpd	1.0.0	61	0.103
http	nginx	0.7.64	61	0.103
http	Intoto httpd	1.0	61	0.103
http	Apache	2.2.11	61	0.103
tandem-print	Sharp printer tandem printing		60	0.101
http	TwistedWeb httpd	8.2.0	60	0.101
http	HTTP Software 1.1		60	0.101
http	Boa HTTPd	0.93.15	60	0.101
telnet	Koukaam NETIO-230A power controller telnetd	1.3	59	0.099
http	thttpd		59	0.099
http	AquaController 4.0		59	0.099
http	SinforHttpd	1.0	58	0.098
http	MS .NET Remoting httpd		58	0.098
ssh	OpenSSH	5.3	57	0.096
http	TP-LINK Router		55	0.093
http	Microsoft IIS httpd	5.1	55	0.093
http	lighttpd		55	0.093
http	uTorrent WebUI		53	0.089
http	siyou server		49	0.083
http	Apache	2.2.8	49	0.083
http	365	365	49	0.083
ssh	Dropbear sshd	0.52	48	0.081
http	Polycom SoundPoint VoIP phone http config		47	0.079
xml			46	0.078
http	Asterisk Call Manager Proxy	1.22pre081119	46	0.078
svnserve	Subversion		45	0.076
http	Mbedthis-Appweb	2.0.4	45	0.076
http	Apache	2.2.15	42	0.071
http	Apache	1.3.33	42	0.071
http	Linksys router http config		41	0.069
http	Buffalo AirStation http config		39	0.066
http	QNAP TS-219P NAS http config	1.0	38	0.064
http	Microsoft IIS httpd	5.0	37	0.062
http	Indy	8.0.22	37	0.062
telnet	BSD-derived telnetd		35	0.059
http	TP-LINK WR340G WAP http config		35	0.059
smtp			34	0.057
http	TP-LINK WR740N WAP http config		33	0.056
http	JDav server 1.0		33	0.056
http	Apache	2.0.53	33	0.056
http	Port25 PowerMTA mail gateway http admin		32	0.054
http	Apache	0.6.5	32	0.054
ftp	Pure-FTPd		32	0.054
ssh	SCS sshd	4.1.2	30	0.051
ssh	OpenSSH	5.5p1 Debian 6+squeeze2	30	0.051
ssh	OpenSSH	5.4p1	30	0.051
http	Embedded HTTP Server		30	0.051
http	Boa HTTPd	0.94.14rc18-ipcam	30	0.051
http	Apache	2.2.4	30	0.051
http	Transmission BitTorrent management httpd		29	0.049
http	Netgear DG834 router http config		29	0.049
http	lighttpd	1.4.30	29	0.049
vnc	RealVNC Enterprise		28	0.047
http	Jetty	6.1.x	28	0.047
http	K1Server		27	0.045
http	ise GmbH HTTP-Server v2.0		27	0.045
http	CherryPy httpd	3.2.0	26	0.044
ssh	OpenSSH	5.1p1	25	0.042
rsync			25	0.042
http	Ubicom httpd	1.1	25	0.042
http	IP_SHARER WEB	1.0	25	0.042
http	H3C-Miniware-Webs		25	0.042
http	WindWeb	2.0	24	0.04
http-proxy	Squid http proxy	2.6.STABLE21	24	0.04
http	httpd		24	0.04
http	webcamXP httpd	5	23	0.039
http	uClinux-httpd	0.2.2	23	0.039
http	Router		23	0.039
http	Boa HTTPd	0.94.11	23	0.039
http	Apache	2.2.20	23	0.039
http	Apache	1.3.34	23	0.039
ftp	vsftpd (before 2.0.8) or WU-FTPD		23	0.039
vnc			22	0.037
telnet	Koukaam NETIO-230A power controller telnetd	1.2	22	0.037
ssh	OpenSSH	5.3p1 Debian 3ubuntu7	22	0.037
ssh	OpenSSH	5.1p1 Debian 5	22	0.037
rtsp	Avtech MPEG4 DVR control rtspd		22	0.037
nntp	INN nntpd		22	0.037
irc-proxy	ShroudBNC irc-proxy	1.2 revision 1080	22	0.037
http	Siemens Gigaset PBX/TARGA DIP VoIP phone http config		22	0.037
http	Mobotix Camera http config		22	0.037
http	Jetty	6.1.1	22	0.037
ssh	OpenSSH	2.3.0 mikrotik 2.9	21	0.035
http	TP-LINK WR541G/542G WAP http config		21	0.035
http	Netgear WGR614v7 WAP http config		21	0.035
http	Apache	2.2.19	21	0.035
vnc	RealVNC Personal		20	0.034
telnet	Koukaam NETIO-230A power controller telnetd	1.4	20	0.034
soap	gSOAP soap	2.7	20	0.034
shoutcast	SHOUTcast server	1.9.8	20	0.034
http	TR069 client CLI Server		20	0.034
http	Sagem F@st router httpd		20	0.034
http	HttpFileServer httpd	2.2f	20	0.034
ftp	vsftpd	2.0.8 or later	20	0.034
ftp	Serv-U ftpd	6.4	20	0.034
ftp	ProFTPD	1.3.3c	20	0.034
ftp	FileZilla ftpd	0.9.41 beta	20	0.034
ssh	OpenSSH	5.8p1 Debian 1ubuntu3	19	0.032
http	TP-LINK WR841N WAP http config		19	0.032
http	Apache	1.3.41	19	0.032
ssh	OpenSSH	5.4p1_hpn13v11	18	0.03
smtp	Microsoft Exchange smtpd		18	0.03
openvpn	OpenVPN		18	0.03
http	HTTP Server 1.0		18	0.03
smtp	Exim smtpd		17	0.029
http	SonicWALL firewall http config		17	0.029
http	PerlACS 1.3.11		17	0.029
http	Netgear DGN1000 router http config		17	0.029
http	lighttpd	1.4.23	17	0.029
http	Apache	2.2.6	17	0.029
http	Apache	1.3.28	17	0.029
upnp	Portable SDK for UPnP devices	1.3.1	16	0.027
ssh	OpenSSH	4.5p1	16	0.027
irc	Unreal ircd		16	0.027
http	WEB SERVER		16	0.027
http	RemotelyAnywhere remote PC management httpd	8.0.668	16	0.027
http-proxy	Ncat http proxy		16	0.027
http	Netgear DG834GT router http config		16	0.027
http	Microsoft-HTTPAPI	2.0	16	0.027
http	Dreambox httpd		16	0.027
http	Cisco IOS http config		16	0.027
http	Airlink 101 or TRENDnet TVIP-422w webcam http config		16	0.027
http	VideoLAN Server streaming media		15	0.025
http-proxy	Squid http proxy	2.7.STABLE9	15	0.025
http	dcs-lig-httpd		15	0.025