Overview of services running on Port 83 TCP.
~160 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
http2775117.321
httpMicrosoft IIS httpd6.0Windows71334.452
httpNetwave webcam http configwebcam64043.997
httpNetwave IP camera http configwebcam58193.632
httpApacheSSL-only mode40932.555
ircDancer ircd40862.55
httpSonicWALLfirewall40302.515
httpApache35132.193
httpHikvision-Webs34872.176
httpGoAhead-Webs httpd29811.861
no match29161.82
httpuc-httpd1.0.027401.71
httpAvtech AVN801 network camera1.0UPnP 1.0webcam25831.612
httpMicrosoft IIS httpd7.5Windows24991.56
chatAIM or ICQ server24031.5
httpmini_httpd1.19 19dec200323031.437
httpBoa HTTPd0.94.14rc2121521.343
httpMicrosoft IIS httpd19911.243
httpGeneral User19791.235
httpBoa httpd19461.215
httpthttpdPanasonic BB-HCM511 IP camera http config18541.157
httpGeoVision GeoHttpServer for webcamswebcam14920.931
httpMicrosoft IIS httpd7.0Windows14070.878
httpthttpd2.25b 29dec200313890.867
httpCdn Cache Server V2.013510.843
httpBoa HTTPd0.94.1313340.833
httpCross Web Server12840.801
httpdcs-lig-httpd11810.737
httpD-Link/Airlink IP webcam http config1.0webcam11610.725
httplighttpd1.4.2810030.626
httpApache2.0.63(Unix)10000.624
httpGoAhead-Webs embedded httpd9990.624
httpApache Tomcat/Coyote JSP engine1.19810.612
httpApache2.2.3(CentOS)8900.556
httpMicrosoft HTTPAPI httpd2.0SSDP/UPnPWindows8880.554
httpLinux2.x UPnP8180.511
httpD-Link DIR-300 WAP http adminWAP7930.495
httpAIM1.07130.445
httpApache2.2.16(Debian)6920.432
httpwebserver1.06890.43
httpBusyBox httpdLinuxmedia device6810.425
httpAirlink 101 or TRENDnet TVIP-422w webcam http configwebcam6740.421
httpTRENDnet TV-IP100 or TV-IP110 webcam display httpdwebcam6480.404
httpBoa HTTPd0.93.156420.401
httpWindWeb2.06130.383
httpWebServer(IPCamera_Logo)5380.336
httplighttpd1.4.295220.326
httplighttpd1.4.194840.302
httpDVR Systems webcam http interfacewebcam4450.278
httplighttpd1.4.304370.273
httplighttpd1.4.264310.269
httpMikroTik router http configrouter4170.26
httpMbedthis-Appweb2.0.44010.25
httpGoAhead-Webs httpdLogiLink WC0002B webcam http config3920.245
httpApache1.3.33(Unix) PHP/4.4.03760.235
httpApache2.2.14(Ubuntu)3570.223
httpnginx3530.22
httpGadspot/Avtech AV787 webcam http configwebcam3410.213
httpMicrosoft IIS httpd5.0Windows3330.208
httpBoa0.94.133300.206
arcserveARCserve Discovery3230.202
httpMikroTik router config httpdRouterOSrouter3060.191
httpD-Link DCS-920 webcam http configwebcam3020.188
httpMicrosoft IIS httpd5.1Windows2990.187
httpthttpdPanasonic BB-HCM511A Network camera http configwebcam2930.183
httpDrayTek Vigor 2800-series ADSL router httpdbroadband router2900.181
httpTwistedWeb httpd8.2.02820.176
httpDart WebServer Tool1.02790.174
httpTRENDnet TV-IP110w or TV-IP422W webcam display httpdwebcam2780.174
httpBoa HTTPd0.94.14rc18-ipcam2780.174
rtsp2600.162
httpthttpd2.19-MX Jul 1 20102580.161
httpWebs2560.16
httpnginx1.1.182510.157
httpD-Link DCS-900 webcam http configwebcam2490.155
httpApache1.3.34(Debian) PHP/4.4.4-8+etch6 mod_ssl/2.8.25 OpenSSL/0.9.8c2480.155
httpPanasonic BB-HCM331 Network Camera http configwebcam2380.149
httpAllegro RomPager4.51 UPnP/1.0ZyXEL ZyWALL 22300.144
httpApache1.3.41(Unix) PHP/4.4.9 mod_ssl/2.8.31 OpenSSL/0.9.8g2240.14
httplighttpd1.4.132230.139
httpApache2.2.15(CentOS)2160.135
httpD-Link Internet Camera2140.134
httplighttpd2100.131
httpNetBox httpd2.8 Build 41282070.129
httpMobotix Camera http configwebcam2070.129
httpApache2.2.16(Debian) PHP/5.3.3-7+squeeze1 with Suhosin-Patch mod_ssl/2.2.22 OpenSSL/1.0.12070.129
httpVivotek Network Camera2040.127
httpsbcache3.5.52030.127
httpBoa HTTPd0.92o2010.125
httpMS-SDK-HttpServer1.01970.123
httpD-Link DCS-910 webcam http configwebcam1930.12
httpthttpd2.25b-lxc 29dec20031910.119
httpMbedthis-Appweb2.4.21910.119
memcachememcached1770.11
httpGnway Web Server1750.109
httpAllegro RomPager4.07 UPnP/1.0ZyXEL ZyWALL 21680.105
httpFC1640.102
httpthttpdPanasonic Network Camera http config1610.1
httpImagiaTek1560.097
http-proxyMikroTik http proxy1500.094
httpHTTPsrv1500.094
httpthttpd2.24 26oct20031420.089
httpPDR-M8001.01410.088
httpavtech httpd1.0Postef-8840 ADSL routerbroadband router1360.085
httpApache2.2.22(Unix) PHP/5.3.101360.085
httpBusyBox httpd1.13Linux1340.084
httpApache2.2.8(Win32) PHP/5.2.61290.081
httpLinksys SPA942 VoIP phone http configVoIP phone1260.079
httpDrcomServer1.01260.079
httpApache2.2.3(Red Hat)1260.079
httpIQinVision Embedded 1.01250.078
httpApache2.2.20(Ubuntu)1250.078
httpIP Camera1220.076
httpthttpd2.19-MX Dec 8 20091210.076
httpWYM httpd1.01200.075
httpD-Link printer/webcam http config1190.074
httpver2.4 rev01180.074
httpthttpd2.19-MX Sep 9 20101150.072
httpGS-Webs1130.071
httpGeneric router http configrouter1100.069
httpavtech1.0..Expires1100.069
httpApache2.2.17(Ubuntu)1100.069
httpRapidLogic1.11080.067
httpD-Link MiniAVServer1080.067
httpApache2.2.22(Ubuntu)1080.067
httpthttpd2.19-MX Oct 19 20111070.067
httpW3MFC1.681060.066
httpNetwork Camera1060.066
httpthttpd2.25b PHP1040.065
httpStanley NT500 access control system httpdsecurity-misc1040.065
httpApache2.2.4(Win32) PHP/5.2.41040.065
http-proxySquid http proxy1030.064
httpSkyIPCam1020.064
httpMicrosoft IISWindows1020.064
httpApache2.0.53(Win32) PHP/4.3.91020.064
httpuTorrent utserver web interfaceLinux1000.062
httpUbicom1.11000.062
httpApache2.2.9(Win32) PHP/5.2.61000.062
httpVivotek 3102 Camera http configwebcam990.062
httpApache1.3.35(Unix) mod_ssl/2.8.26 OpenSSL/0.9.7e PHP/4.3.11990.062
httpApache1.3.33(Unix) mod_ssl/2.8.24 OpenSSL/0.9.7e PHP/4.3.11990.062
sshprotocol 1.5980.061
rtspAvtech MPEG4 DVR control rtspd980.061
httpSilverStream httpd10.0Novell exteNd Application Server970.061
httpIndy8.0.25960.06
httpHeiTel GmbH Web Server960.06
httpD-Link DCS-3220 webcam http configwebcam950.059
httpApache1.2.6950.059
httphttp server 1.0930.058
httpDreambox httpdmedia device930.058
spy-netSpy-Net or CyberGate backdoor**BACKDOOR**920.057
httpD-Link web camera http configwebcam920.057
httpTechno Vision Security System http config2.0webcam910.057
httpSecure Computing Sidewinder firewall http adminfirewall900.056
httpWYM httpd1.0IP-Video embedded camera http configwebcam880.055
httpApache1.3.39(Unix)880.055
httphttpd870.054
httpSonicWALL firewall http configfirewall860.054
httpApache2.2.16(Ubuntu)860.054
httpvidiPCAM850.053
httpthttpd2.19-MX Apr 26 2011840.052
httplighttpd1.4.23840.052
httpWebAdmin830.052
httpnginx0.7.61820.051
httpOwnServer1.0800.05
httpApache1.1.1 (Unix) PHP800.05
httpMiniServ0.01Webmin httpd780.049
telnet770.048
httpApachePassword Required770.048
httpApache2.2.10(Fedora)730.046
httpwg_httpd1.0(based Boa720.045
httpnginx0.7.67720.045
httpavtech1.0700.044
httpthttpd2.19-MX Feb 27 2009690.043
httpnginx0.8.54690.043
httpLinksys PAP2 VoIP http configVoIP adapter690.043
httpGoAhead-Webs690.043
httpApache2.2.12(Ubuntu)690.043
httpnginx0.7.65680.042
httpApache1.3.41(Unix)680.042
sshDropbear sshd0.52protocol 2.0Linux670.042
httpApache2.2.22(Unix) mod_ssl/2.2.22 OpenSSL/1.0.0h PHP/5.3.10670.042
http-proxyMicrosoft Foundation Class httpd1.0Windows660.041
httpIPCamera-Webs660.041
httpWebLogic httpd650.041
httphttpd 1.1640.04
httpCisco IOS http configIOS630.039
httplighttpd1.4.18620.039
httpApache1.3.33(Debian GNU/Linux) mod_gzip/1.3.26.1a mod_python/2.7.10 Python/2.3.4620.039
httpTiny WebServerby Remote 1.0b610.038
httpApache Tomcat/Coyote JSP engine1.1Tomcat 5.5600.037
vncVNCprotocol 3.8590.037
httpDraytek Vigor ADSL router webadminbroadband router590.037
httpTridium Niagara httpd1.1specialized580.036
httpnetcam580.036
httpApache1.3.27(Win32)570.036
http-proxySquid http proxy2.7.STABLE9560.035
httpIBM HTTP ServerDerived from Apache550.034
ftpMicrosoft ftpdWindows550.034
httpBoard 7 Web Engine540.034
httpTP-LINK MR3220 WAP http configWAP530.033
httpnginx1.0.11530.033
httpApache2.2.22(Unix)530.033
httpnginx1.2.1520.032
httpJetty6.1.x520.032
httpApache2.2.9(Debian) PHP/5.2.6-1+lenny4 with Suhosin-Patch mod_ssl/2.2.9 OpenSSL/0.9.8g520.032
httpApache2.2.14(Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1520.032
httpLotus Domino httpd510.032
httpImagiaTekIpcam manager510.032
httpHTTPServer510.032
httpdvr1614n web-cam httpdwebcam510.032
httpChipPC Extreme httpdWinCE 5.0Windows510.032
httpApache2.2.16(Win32) PHP/5.2.14510.032
httpADAM-60008.1.0019510.032
httpApache2.2.3(Debian) PHP/5.2.0-8+etch13500.031
httpApache2.2.21(Fedora)500.031
httplighttpd1.4.20490.031
httpDavid WebBox httpd11.00a.0717480.03
httpApache2.0.52(CentOS)470.029
httpIndy10.1.5460.029
httpGoAhead-Webs httpdOvislink WAP http configWAP460.029
httpApache2.2.21(Win32) mod_ssl/2.2.21 OpenSSL/1.0.0e PHP/5.3.8 mod_perl/2.0.4 Perl/v5.10.1460.029
httpApache2.2.13(Unix) DAV/2 PHP/5.2.10450.028
httpthttpdMobotix M10 PRISMB web cam http configwebcam440.027
httpnginx0.7.62440.027
httplighttpd1.4.31440.027
httpAllegro RomPager4.01440.027
http-proxySquid http proxy2.6.STABLE12430.027
httpnginx1.2.0430.027
httpMultView WEB Server V1.1430.027
ftp420.026
httpnginx1.0.10410.026
httpD-Link Web Server 0.01410.026
soapgSOAP soap2.7400.025
httpTibetSystem Server 2.0400.025
httpthttpd2.19-MX Sep 1 2008400.025
httpalphapd400.025
httpCaucho Resin JSP engine2.1.16390.024
httpApache1.3.27(Unix) Debian GNU/Linux mod_gzip/1.3.26.1a mod_python/2.7.8 Python/2.2.2390.024
httpWYM httpd1.0Grandtec wifi webcam http configwebcam380.024
httpWebServer380.024
httpSNF0.1380.024
httpMicrosoft IIS httpdWindows380.024
httpApache2.2.3380.024
httpApache2.2.15(Fedora)380.024
sshOpenSSH4.3protocol 2.0370.023
http-proxyHughesNet Web Acceleration http proxy370.023
httpgo1984370.023
httpDVR 2400 Security Camera web interfacewebcam370.023
httpDavid-WebBox12.00a (0781) WIN32370.023
httpApache2.2.9(Debian) PHP/5.2.6-1+lenny4 with Suhosin-Patch370.023
httpApache2.2.17(Win32) mod_ssl/2.2.17 OpenSSL/0.9.8o PHP/5.3.4 mod_perl/2.0.4 Perl/v5.10.1370.023
httpMiniServ1.580Webmin httpd360.022
httpD-Link DCS-6620G webcam http configwebcam360.022
httpApache2.2.11(Win32) PHP/5.3.0360.022
xml350.022
httpWireless Network Camera350.022
httpViewSonic PJD6521 projector http configmedia device350.022
httpTeamViewer httpd350.022
httpNETWORK350.022
httpApache2.2.19(Win32) PHP/5.2.17350.022
httpApache2.2.10(Unix) DAV/2 PHP/5.2.8350.022
httpApache2.0.61(Unix)350.022
sslTLS1.0340.021
sshDropbear sshd0.51protocol 2.0Linux340.021
httpWireless Network CameraWireless Network Camera340.021
httpWebFS httpd1.21340.021
http-proxySquid http proxy3.1.18340.021
httpMicrosoft Windows Media Server9.01.01.5001Windows340.021
httpYAMAHA-RT330.021
httpTP-LINK WR740N WAP http configWAP330.021
http-proxySquid http proxy3.1.20330.021
httpnginx0.8.53330.021
httpMongoose httpd330.021
httpIpswitch IMail web service7.15Windows330.021
httpics-cache3.5.5330.021
httpGrandstream HT502 VoIP router http configVoIP adapter330.021
httpDD-WRT milli_httpdLinuxWAP330.021
httpApache2.2.17(Win32) PHP/5.3.5330.021
httpApache2.2.15(Red Hat)330.021
socks5320.02
httpuTorrent WebUIWindows320.02
httpIPC320.02
httpiDVRhttpSvr320.02
httpCommuniGate Pro httpd4.1.8320.02
httpApache2.2.8(Win32)320.02
httpU S Software Web ServerGeneral User310.019
httpthttpd2.23beta1 26may2002310.019
httpthttpd2.19-MX Jan 9 2008310.019
httpLogin PV Webserver310.019
httpKerio MailServer http config310.019
httpBlueIris-HTTP1.1310.019
httpBeck IPC@CHIP embedded httpdSolarLog 200 power monitor httpdpower-misc310.019
httpApache2.0.52(Win32) mod_ssl/2.0.52 OpenSSL/0.9.8a PHP/5.1.6310.019
httpADH-Web310.019
httpVB300.019
httpthttpd2.19-MX Jan 24 2006300.019
http-proxySymantec firewall http proxySimple, Secure Web Server 1.1firewall300.019
httplighttpd1.4.22300.019
httpthttpd2.19-MX Jul 16 2009290.018
httpStreamingClient290.018
httpSpeedr0.8.0290.018
httpNetwork Dome CameraNetwork Dome Camera290.018
httpHikvision-WebsHikvision290.018
httpD-Link DCS-2121 webcam http configwebcam290.018
httpApache2.2.9(Debian) PHP/5.2.6-1+lenny9 with Suhosin-Patch290.018
httpApache2.2.8(Win32) mod_aspdotnet/2.2290.018
httpApache2.2.6(Win32) PHP/5.2.5290.018
httpApache2.2.14(Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l mod_perl/2.0.4 Perl/v5.10.0290.018
httpApache0.6.5290.018
httpu-ServerWV-NM100280.017
httpTridium Niagara httpd3.5.34specialized280.017
httpMini ASP Web Server280.017
httpFRITZ!Box http configbroadband router280.017
httpChipPC Extreme httpdWinCE 6.00Windows280.017
httpApache2.2.4(Win32) PHP/5.2.3280.017
httpwebcamXP httpd5Windows270.017
httpnginx0.8.22270.017
httpNetPort httpd1.1270.017
httpHttpd1.0270.017
httpHomeSeer Home Control Web InterfaceWindows270.017
httpGoAhead-WebsGoAhead-WebsIPCamera270.017
httpthttpd2.19-MX Mar 31 2010260.016
http-proxyHaproxy http proxyload balancer260.016
httpMayGion WebServer(www.maygion.com)260.016
httpIQ3260.016
httpDreambox DVB Enigma httpdmedia device260.016
httpDavid WebBox httpd12.00a.0781260.016
httpBlueIris1.1260.016
httpAXIS 205 network camera web interface4.05webcam260.016
ftpvsftpd2.0.8 or later260.016
ircUnreal ircd250.016
httpiPCAM250.016
httpImagiaTekIP Camera250.016
httphttp servereverfocus250.016
httpDvrs WebSvr 1.0.0250.016
httpDD-WRT milli_httpd250.016
httpBoa HTTPd0.94.11250.016
httpBlueIris-HTTPBlueIris-HTTPBlueIris250.016
httpApache2.2.9(Debian) PHP/5.2.6-1+lenny9 with Suhosin-Patch mod_ssl/2.2.9 OpenSSL/0.9.8g250.016
ftpPure-FTPd250.016
sshOpenSSH5.3protocol 2.0240.015
httpTiny WebServer240.015
httpnginx1.0.8240.015
httpnginx1.0.4240.015
httpInterNiche Technologies WebServer 2.0240.015
httpIndy10.0.52240.015
httpics-cache3.5.4240.015
httpHP StorageWorks AG118A tape autoloader http configstorage-misc240.015
httpD-Link DCS-3220G webcam http configwebcam240.015
httpApache2.2.14240.015
httpTP-LINK RouterTP-LINK Wireless Lite N 3G Router MR3220230.014
httpserver230.014
httpnginx0.8.46230.014
httpNetApp DFM httpd230.014
httpHTTPD230.014
httpGoAhead-WebsGoAhead-WebsGoAhead230.014
http-proxySquid http proxy2.7.STABLE5220.014
httpnginx1.0.15220.014
httpMothership Enterprise220.014
httpHenry1.1220.014
httpGoAhead-Webs httpdLinkSys SLM2024 or SRW2008 - SRW2016 switch http configswitch220.014
httpAverMedia WebCamX httpdwebcam220.014
httpApache2.2.9(Unix) mod_ssl/2.2.9 OpenSSL/0.9.8o mod_wsgi/2.4 Python/2.6.2220.014
httpApache2.2.9(Debian) mod_ssl/2.2.9 OpenSSL/0.9.8g220.014
httpApache2.2.4(Win32) PHP/5.2.1220.014
httpApache2.2.22(Unix) mod_ssl/2.2.22 OpenSSL/1.0.0h; SSL-only mode220.014
httpalphapdDCS-930L220.014
httpSmartLinc210.013
httpObserver XT (c) Veo210.013
httpnginx0.8.17210.013
httpMilestone XProtect video surveillance http interfaceen-USwebcam210.013
httpGoAhead-Webs2.5.0210.013
httpApache2.2.22(Debian)210.013
httpApache2.2.15(Win32) PHP/5.2.13210.013
httpApache2.2.10(Unix) PHP/5.2.6210.013
httpApache2.2.0(Unix) mod_ssl/2.2.0 OpenSSL/0.9.6210.013
httpApache2.0.40(Red Hat Linux)210.013
httpZimbra http config200.012
httpSnom 300 VoIP phone http configVoIP phone200.012
httpSatel ETHM-1 alarm control unitspecialized200.012
httpMicrosiga httpd200.012
httplighttpd1.4.11200.012
httpIQhttpD1.0 07oct2007200.012
httpGoAhead-Webs httpdRouter with realtek 8181 chipset http configrouter200.012
httpfec1.0 (Funkwerk BOSS)200.012
httpD-Link Internet CameraDCS-5300200.012
httpD-Link DCS-6620 webcam http configwebcam200.012
httpCisco SPA502G VoIP phone http configVoIP phone200.012
httpBoa HTTPd0.94.14rc20200.012
httpApache2.2.X(OVH)200.012
httpApache2.2.9(Fedora)200.012
ftpvsftpd (before 2.0.8) or WU-FTPD200.012
directconnectDirect Connect P2PWindows200.012