Overview of services running on Port 42 TCP.
~57 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
winsMicrosoft Windows Wins3603962.684
no match-/--/-1221921.253
donkeyMLDonkey multi-network P2P server36096.277
chatAIM or ICQ server16332.84
sshOpenSSH4.34880.849
httplighttpd1.4.193270.569
http2830.492
sshOpenSSH5.32310.402
ftpProFTPD1.3.32250.391
ftpProFTPD1.2.102200.383
httpMicrosoft IIS httpd1490.259
telnetPolycom VoIP phone debug telnetd1260.219
ftpProFTPD1.3.01190.207
sshOpenSSH4.5p11140.198
ssh930.162
sshOpenSSH5.5p1 Debian 6+squeeze2920.16
httpMicrosoft HTTPAPI httpd2.0840.146
ftp580.101
sshOpenSSH5.5p1 Debian 6+squeeze1570.099
sshOpenSSH5.3p1 Debian 3ubuntu7540.094
telnet520.09
sshOpenSSH3.9p1520.09
ftpMicrosoft ftpd470.082
sshOpenSSH5.1p1 Debian 5460.08
sshOpenSSH5.8p2-hpn13v11380.066
sshOpenSSH5.9p1 Debian 5ubuntu1340.059
sshKojoney SSH honeypot340.059
sshOpenSSH5.8p1 Debian 1ubuntu3310.054
vncVNC290.05
sshMikroTik RouterOS sshd230.04
httpBoa HTTPd0.94.14rc21210.037
ftpFileZilla ftpd0.9.41 beta200.035
httpthttpd2.25b190.033
sshDropbear sshd0.52170.03
ftpPure-FTPd170.03
sshOpenSSH5.4p1160.028
sshOpenSSH5.8150.026