Dear Friends, We are using Red Hat Linux 7.3, with DNS, DHCP, SQUID (proxy), IPTABLES (firewall), SENDMAIL (e-mail server). Hardware Intel P4 D845, Processsor 1.7 GHZ, 512MB RAM, 40GB Hard Disk, External US Robotics Modem. We are running internal cable with 25 users on single dialup. Client does not need any configuration, because we are using DHCP server to assign DNS, Gatway. But, now our network is growing day by day and we want to switch single dialup to multi dialup and I tried to configure multi dialup account in Linux but sitll unsucessfull. Now I haved decided to switch on Windows2000 with ISA server and I want to know either this facilities are availble in ISA or not. 1) Transparent Proxy 2) Client does not need to install any software at their end. 3) Download limit to 1MB in a selected time period 3) Block any client by their MAC Address 4) Block sex sites 5) Quick reply from cache if possible then please send me some links of article which cover this things I want to test this all thing my self then I will switch on ISA. Thanks in Advance --------------------------------- Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo.