To understand the concept of "KAD servers exclusive," one must first understand the dual architecture of the eMule file-sharing network. eMule does not rely on a single source for finding peers; instead, it utilizes two distinct infrastructures simultaneously: ED2K (Servers) and KAD (Kademlia) . Menschen A1 | Kursbuch.pdf
Running KAD exclusive means the user disables the "Connect to server" option in the eMule preferences. The client completely ignores the ED2K protocol and relies 100% on the distributed KAD network. A. Privacy and Security The primary driver for going "KAD exclusive" was security. In the mid-2000s, copyright enforcement agencies and anti-piracy groups began monitoring IP addresses on major ED2K servers. Because servers are centralized, they are easy targets for logging IP addresses of users downloading specific files. By switching to KAD exclusive, users communicate directly with peers in a decentralized mesh, making mass surveillance significantly more difficult and expensive for enforcement agencies. Index Of Devdas 2002 Better
For most modern users of the eMule network, running in "KAD exclusive" mode (or KAD-primary mode) is the standard recommendation. It offers the best balance of privacy and reliability in an era where reliable ED2K servers are virtually extinct.
Over the years, the major ED2K servers faced legal pressure and were shut down. Others became flooded with fake files (corrupted data planted to frustrate downloaders) or viruses. The server list became a maintenance headache. KAD, having no central server to shut down, survived these purges unscathed.