Overview of services running on Port 50021 TCP.
~6 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
chatAIM or ICQ server171126.25
no match-/-164925.299
httplighttpd3595.508
http3315.078
ftp2443.743
ftpMikroTik router ftpd1742.67
ftpvsftpd1712.624
ftpProFTPD1392.133
ftpFileZilla ftpd1392.133
httpMicrosoft IIS httpd1342.056
ftpDrayTek Vigor 2820 ADSL router ftpd1251.918
ftpMicrosoft ftpd1241.902
httpMicrosoft HTTPAPI httpd1131.734
sshOpenSSH911.396
mongodbMongoDB861.319
ssh811.243
httpthttpd741.135
ftpPure-FTPd610.936
vncVNC550.844
ftpServ-U ftpd540.828
telnet480.736
httpWangWnagSimpleServer320.491
ftpDreambox ftpd240.368
httpBoa HTTPd230.353
mysqlMySQL220.338
httpnginx210.322
ftpSynology DiskStation NAS ftpd200.307
ftpoftpd180.276
telnetLinux telnetd140.215
sslTLS140.215
arcserveARCserve Discovery140.215
httpCisco IOS http config130.199
ftpProFTPD or KnFTPD130.199
smtp120.184
httpJetty120.184