hi, thanks for the reply
now i can ping google.com with ease, i have installed the network components dns ntp firewall, sucessfully. I hit a stop when i try to install squid, it say in the zentyal log, i need to configure the firewall, so i tried by adding few web servicesg TCP and UDP protocols by using port 80, DNS protocol by using port 53, and accepting packets from my internal network to the zentyal server, then i save, but still the zentyal, insists that my firewall is not well configured....is there a way around this?