Overview of services running on Port 2161 TCP.
~51 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
http948318.4
sslTLS1.0724514.058
sslSSLv3719113.953
ircDancer ircd40297.818
telnetCisco 1721 router telnetdIOSrouter38737.515
httpSonicWALLfirewall36777.135
telnetCisco IOS telnetdIOSswitch28025.437
telnet24984.847
chatAIM or ICQ server21404.152
no match14282.771
http-proxyEZproxy web proxy10031.946
http-proxyMikroTik http proxy6841.327
httpAIM1.06101.184
httplighttpd1.4.194820.935
httplighttpd1.4.294280.83
telnetCisco router telnetdIOSrouter4090.794
httpWangWnagSimpleServer1.02300.446
httpGateway-Webs1920.373
httpGoAhead-Webs httpd1590.309
httpMicrosoft IIS httpd6.0Windows1380.268
httpApache2.2.3(CentOS)1090.211
httpApache2.2.31080.21
sshprotocol 1.5950.184
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows930.18
httpApache Tomcat/Coyote JSP engine1.1780.151
httpNetwave IP camera http configwebcam710.138
httpMicrosoft IIS httpd700.136
httpApache1.3.6670.13
httpAvtech AVN801 network camera1.0UPnP 1.0webcam640.124
httpthttpd2.24620.12
httpPDR-M8001.0550.107
httpApache440.085
vncVNCprotocol 3.8430.083
httpBoa HTTPd0.94.14rc21400.078
ftpMicrosoft ftpdWindows390.076
arcserveARCserve Discovery360.07
sslmulti-vendor SSL340.066
httpmini_httpd1.19 19dec2003290.056
nntpINN nntpdposting ok280.054
http-proxySquid http proxy2.7.STABLE9250.049
httpGoAhead-Webs250.049
httpApache2.2.14(Fedora)240.047
httpthttpd2.24 26oct2003230.045
httpthttpd2.25b220.043
httpHikvision-Webs210.041
ftp210.041
httpuTorrent WebUIWindows200.039