Hi, We currently run a proprietary only network consisting of 5 servers with 2 acting as files servers and dc's, 1 a antivirus server and successmaker server, 1 running sql and pass and the last running ISA with surfcontrol. I would like to move over to Linux for the most of my network, but due to the existing constraints of Successmaker and PASS, I cant do a lot, unless you have any suggestions. I do know Pearson are investigating cross platform capabilities. Anyway, my licensing is up for surfcontrol soon and I want to try if squid or similar can do the job. I know of dansguardian and squidguard, but don't know if there any good. My main question is what Linux distro shall I go for and what caching and filtering solution will do what isa and surfcontrol do? I have a hardware firewall, so the firewall features in isa are not needed. I do require ad compatibility with transparent authentication. Real time monitoring/monitoring would be good too. I've looked at censornet, but was not impressed because of i.e. always asking for authentication. Also, if I decide to move to Linux, how can you customise and lock down the desktop environment. We have decent pc's here, so a way to do this without ltsp would be handy. Thank you for your time Alan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.7 - Release Date: 09/05/2005