Cisco Umbrella helps prevent information security incidents by adding threat intelligence
into the DNS translation process. That intelligence prevents adware, malware, botnets,
phishing attacks, and other known bad Web sites from being accessed.
When you type an address like http://www.yahoo.com in your browser address bar, the
computer doesn’t know where yahoo.com points to and it will therefore ask the DNS
server. The job of a DNS server is to translate this human-readable web address (like
www.yahoo.com) into a computer-readable number also known as an IP address (209.131.36.158).
Once your computer knows the IP location of a web domain name, it opens the website
in your browser. DNS is working behind the scenes every time we use a web browser,
email program, or cloud-based service.
DNS Security helps prevent information security incidents by adding threat intelligence
into the DNS translation process. That intelligence prevents adware, malware, botnets,
phishing attacks, and other known bad websites from being accessed.
Cisco Umbrella DNS is a cloud hosted solution that protects users by blocking connections
to sites that have been reported as malicious.
The University of South Carolina’s DNS servers forward all external website requests
to the Cisco Umbrella cloud for resolution and a determination on whether a website
is safe. End-users who reach out to malicious websites will be blocked and will receive
a security notification in their browser.
No, Cisco Umbrella only resolves external websites and works in conjunction with USC’s
internal DNS systems.
All DNS lookups to external sites from the USC network should already be protected
by Cisco Umbrella. Follow the instructions to test whether Cisco Umbrella is protecting your device. For protection when off
the USC network, a roaming client would need to be installed.
A software client that works on Mac OSX and Windows is available from Software Distribution. Clients for iOS and Android are available from their respective app stores.
The roaming client offers protection for devices that are not on the University of
South Carolina network. Check with your local security liaison on whether this is
mandated for your Organizational Unit.
This will only protect your browsing from malicious content. You will continue to
be able to browse as normal.
Cisco Umbrella may initially block requests to new domains and newly developed websites.
After a couple of days, these sites are usually resolved without issue. If not, you
can submit a request for your website to be whitelisted in USC’s Self-Service Portal
Self Service Portal. You can find the "Domain Name Services (DNS)" in the "Hosting Services and Technical
Administration" category of ServiceNow.
No. Cisco Roaming client is very light weight and will have little to no effect on
your PC.
Solution
Cisco Umbrella
Cisco Umbrella DNS uses the internet’s infrastructure to block malicious destinations
before a connection is ever established.