isi di squid.conf nya jadi:

acl macclient arp "/usr/local/squid/blokmacaddress.acl"
http_access allow macclient 
http_access deny all 

trus bikin file blokmacaddress.acl nya di folder /etc/squid/

#cd /etc/squid/
#nano blokmacaddress.acl

--isi dech mac address yang diijinin--

00:11:22:33:44:55 #punya bos
01:23:45:67:89:01 #punya sekretaris

-- simpen --

restart squid

#squid -k reconfigure