Overview of services running on Port 2103 TCP.
~83 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 InfoOSDevicetypeCount Percent
netbios-ssnNepenthes honeypot netbios-ssn2559830.523
telnet1868622.281
http1045812.47
no match67118.002
ircDancer ircd40304.805
httpSonicWALLfirewall36904.4
chatAIM or ICQ server21942.616
telnetCisco IOS telnetdIOSswitch20762.475
sslSSLv317292.062
telnetCisco 1721 router telnetdIOSrouter15481.846
http-proxyEZproxy web proxy12481.488
httpAIM1.06270.748
httplighttpd1.4.194400.525
httplighttpd1.4.294090.488
httpWangWnagSimpleServer1.02580.308
httpGateway-Webs2530.302
httpMicrosoft IIS httpd6.0Windows2230.266
httpGoAhead-Webs httpd1620.193
sslTLS1.01400.167
httpApache2.2.3(CentOS)1230.147
ftpMicrosoft ftpdWindows1170.14
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows970.116
httpApache2.2.3960.114
sshprotocol 1.5930.111
httpApache Tomcat/Coyote JSP engine1.1850.101
httpMicrosoft IIS httpd840.1
httpNetwave IP camera http configwebcam740.088
httpAvtech AVN801 network camera1.0UPnP 1.0webcam710.085
httpthttpd2.24620.074
telnetCisco router telnetdIOSrouter600.072
httpBoa HTTPd0.94.14rc21560.067
telnetUsually a Cisco/3com switchIOSswitch540.064
ftp500.06
httpPDR-M8001.0480.057
vncVNCprotocol 3.8410.049
httpApache360.043
ftpProFTPDUnix300.036
arcserveARCserve Discovery300.036
nntpINN nntpdposting ok280.033
httpmini_httpd1.19 19dec2003270.032
httpApache2.2.14(Fedora)240.029
http-proxySquid http proxy2.7.STABLE9230.027
httpGoAhead-Webs230.027
sshOpenSSH3.8.1p1 Debian 8.sarge.6protocol 2.0Linux220.026
ftpvsftpd2.0.8 or later220.026
ftpPure-FTPd220.026
httpthttpd2.24 26oct2003210.025
httpApacheSSL-only mode200.024