Shield IT Solutions Case Study: Web Filtering

Web filtering is an important consideration for any enterprise - it is one of the best-known and most efficient frontline defences against hacker attacks and malicious software. One of Shield IT Solutions’ customers was using a solution from Blue Coat and SurfControl which had reached end of life and needed to be replaced.

The system had not been performing to the customer’s satisfaction - it had proven difficult to manage, was not cost-effective, and its limited reporting capacity required an additional application to fill in the gaps in its functionality.

Shield IT Solutions carried out an evaluation process and selected two Bloxx Web Filter appliances for deployment on separate Internet linksto increase resiliency. Filtering policies were created based on group membership rather than individual user rules as in the previous Blue Coat installation, and were integrated into Active Directory.This allowed existing support staff to grant Internet access by moving users into relevant Active Directory groups rather than modifying the proxy server configuration.

Improving Web Filtering Performance

Not only did the new Bloxx appliances improve the performance of web filtering for the customer -they also identified a number of websites which had been stealthily compromised. Initially, these sites appeared to be blocked incorrectly, but upon further investigation it transpired that they had been compromised and hidden links inserted. The client was thus able to advise the relevant organisations - which included their customers and partner organisations - that their sites had been compromised.The issues were then resolved.

The replacement proxy servers also introduced BloxxTru-View Technology which combines the best of conventional tools with new intelligent identification. Tru-View automatically tracks and classifies different kinds of web traffic more effectively than first and second generation filters.It also removes the inherent weaknesses in using human-only classification to give you the most up-to-date URL blocking and control.

By clustering the devices, Shield IT Solutions enabled the sharing of logging information between devices in order to provide comprehensive reports, using the latest data, whenever required. To give the IT management team a better view on Internet usage within the organisation, various scheduled reports were setup to run weekly.

The customer has since found that this new setup meets their requirements to an infinitely higher degree than their previous setup. Further Bloxx case studies can be viewed on the Bloxx website.

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