remotely (web) add/remove rfid key fobs

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hi there.

i'm new rfid , understand basic working (if key_fob == xxx than).
i know if possible define variable (key_fob) on internet , store value somehow permanently?

i have purchased id-20 reader , install @ location a, myself live @ location b , able add/remove key fobs (new users, lost fobs etc).

is possible? example remotely add/remove key fobs in text file stored on sd card , pull data arduino?

kind regards,
sebastiaan

quote
i know if possible define variable (key_fob) on internet , store value somehow permanently?

yes is.
use long long type of variable store 64 bit value. can store these values in eeprom
http://arduino.cc/it/reference/eeprom


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