The term "Stalker Enigma2" refers to the practice of running a client plugin on an Enigma2 receiver that mimics the behavior of a Mag box. Essentially, it tricks the IPTV server into thinking your expensive Linux satellite receiver is actually a simple Mag box. This allows users to access "Stalker Portals" provided by IPTV services without needing to buy a separate Mag device.
Most Stalker plugins follow a similar configuration process: stalker enigma2