![]() ![]() You are probably using Microsoft Active Directory and DNS. If you just wanted to filter URLs, you don’t even need to determine the who, just white list and blacklist specific URLs.Ĭhange DNS Forwarders - The Easiest way to start using Cisco Umbrella Basically you are trying to send DNS requests to Umbrella and ideally, determine who is trying to go there and from which device. There are a few deployment scenarios for Cisco Umbrella, depending on your what you are trying to accomplish. This article is more about the deployment of Cisco Umbrella in our environment, so I won’t go on with all the numerous other benefits of Umbrella, suffice it to say that I am a believer in the product, and it was an enormous improvement over our previous solution. I’ve even seen an appliance set to ‘fail-open’ that should pass traffic even if the device were dead, but failed to do so when needed. Or a company will have redundant ISPs but ALL traffic goes through a single appliance, creating a single point of failure. I’ve seen it several times where the security/URL filtering appliance was only in-line when running on the primary ISP connection. No matter the vendor, administration tasks are more complicated than they should be, and they always add a little complexity and more points of failure in the environment. I’ve had to support on-premise solutions for URL filtering in the past and in my opinion, there are no good ones. ![]() If you don’t have Cisco Umbrella (Formerly OpenDNS) in your environment yet, you should really take a look at it. ![]()
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