Hi, One of the sites I look after has had an incident a couple of months back where a staff member sent a fairly explict porn comic to a customer instead of a friend, when the email address was very close & picked the wrong one from the recently used list. One granddaddy hell of a hulla-a-baloo ensured. The board has now decreed that all porn related domain, sex sites, popup add sites, gambling sites etc etc be blocked, from access to the PC on the internal LAN. Using the lists available below this is fairly easy accomplished. I do however have some concern of the effect on performance, if I add block list for something like 450K domains, 150K URL's, etc, will this have a significant effect on the ISA servers performance ? I've done it on my play server at home, the effect is somewhat noticable but quite tollerable, but then it's just one user accessing the web, very different from a site with 100 users. Some of these are fairly web active users. I have little doubt, that no matter what the effect on performance, they are going to say "DO IT", but before I do anything that will kill performance on the ISA, I'd like to give them some sort of heads up of, "This is the likely effect it will have on web browsing". The target server is a dual processor P3 1.4G with 2 G ram, just running W3K with all patches up to date, and ISA2004 also with all patches up to date. Any feeling for the impact on performance ? Is it likely to adversly affect mail server publishing ? From: Steve Moffat Sent: Tue 30/May/2006 04:49 To: ISA Mailing List Subject: [isalist] Re: URL to Block Websites in ISA 2004 Hah.read it wrong. I have ISA 2006 blocklists on http://www.isaserver.bm/ S From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Gene Sibbs Sent: Monday, May 29, 2006 3:44 PM To: ISA Mailing List Subject: [isalist] Re: URL to Block Websites in ISA 2004 Any news on ISA 2006 blocklists? Sibbs Steve Moffat <steve@xxxxxxxxxx> wrote: http://www.isaserver.org/articles/2004firewallblocklist.html Steve From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Moazzam Iqbal Sent: Monday, May 29, 2006 9:03 AM To: ISA Mailing List Subject: [isalist] URL to Block Websites in ISA 2004 Importance: High Please email me the ULR from where i can learn how i can block Websites in ISA 2004 I am running a standalone ISA 2004 on Windows 2003 Server. Regards, Moazzam Iqbal Be a chatter box. Enjoy free PC-to-PC calls with Yahoo! Messenger with Voice.