Anandu Aman

The programs running on your computer can give away information about your identity. Particularly those involved in file transfer and logging in to other computers. Contents     1 ident lookups     2 ftp logins     3 Telnet     4 ssh keys     5 Terminal Services/rdesktop     6 SMB/NMBD     7 mDNSResponder (Bounjour/Rendezvous/ZeroConf)     8 UPNP ident lookups ident is the TCP identification service. It allows a remote host to determine the local username associated with any TCP connection involving that remote host. Naturally this is a concern, especially if your username reveals your true identity. So when do ident lookups happen? Well technically your machine's ident server will answer any request for a (server, client) port pair for which the destination IP is the same as the ident request source IP. However, normally is only used with FTP, SMTP and IRC traffic, if that. Some web and ssh servers also h...

The Internet is a computer network made up of thousands of networks worldwide. No one knows exactly how many computers are connected to the Internet. It is certain, however, that these number in the millions. No one is in charge of the Internet. There are organizations which develop technical aspects of this network and set standards for creating applications on it, but no governing body is in control. The Internet backbone, through which Internet traffic flows, is owned by private companies. All computers on the Internet communicate with one another using the Transmission Control Protocol/Internet Protocol suite, abbreviated to TCP/IP. Computers on the Internet use a client/server architecture. This means that the remote server machine provides files and services to the user's local client machine. Software can be installed on a client computer to take advantage of the latest access technology. An Internet user has access to a wid...