webserver

local side = 'back'
local IDblack = {'6', '7'}
local black = {'Firewolf', 'DNS'}

rednet.open(side)

id, msg = rednet.receive()

if msg == black and id == IDBlack
then
print('Blocked ID: '..id..' Detected... Denying Access')
rednet.send(id, 'You Are Blacklisted!')
end