I have ISA 2006 , it has 2 interfaces ( internal + DMZ) , and i have applied 2 rules ,
1- allow internal and local host to external , all protocols , for all users
2- allow my internal DNS to query dns from my ISP DNS ( I have setup a computer set for ISP dns servers , and another one for my internal DNS servers)
but the problem is some websites like microsoft.com , cant be opening with this error
Error Code 11001: Host not found
Background: This error indicates that the gateway could not find the IP
address of the website you are trying to access. This is usually due to a
DNS-related error.
Source: DNS error
Error Code 11001: Host not found
i cant open this website on the isa server also !! but i can access it if i specidfy the IP address of microsoft.com
any idea why is this happining ? do i need to apply any rule ?