Question : Unable to view certain websites internally on several OSx boxes

We have recently added several OSx boxes into our network, there are no issues wth connectivity to AD, File shares, printing or the internet in general...

But, there is a random issue that I can not pin point where several of our sites (hosted internally) will not pull up. None of the PC's have issues pulling up these sites. All the Macs point to the same DNS server as the rest of the boxes that sit on our LAN.

The web servers that host these sites are all clustered and load balanced off of an F5 LTM. Our LAN segment is on a different subnet (10.1.50.x) than internal IPs of the webservers (10.1.1.x) but everything talks perfectly other than this. I can ping and ssh by IP and hostname back and forth.

This issue is random as well. I have 4 Mac Pros and 6 Mac mini's that sit on the same segment. Some of these machines have absolutely no issues what so ever. But, others have the same symptoms of not being able to pull up one of the 250+ sites that we host. They just timeout with no response or error.

I'd like to add that other than the random sites that I can not hit that are hosted internally, I am able to hit literally everything else on the internet. Just NOT random sites that are hosted internally.

Thanks ahead of time for your input.

Answer : Unable to view certain websites internally on several OSx boxes

Fixed. Someone had pointed our primary DNS server to 4.2.2.2

I pointed it back to itself. Problem solved.

Thanks for the input guys.