Web filtering and ‘Defence in Depth’

What is it? 

Web or Domain Name System (DNS) filtering is the process of using the DNS to block malicious websites or filter out harmful or inappropriate content.  

Web filtering is a line of security within an organisation. Using a similar system to the military strategy of ‘Defence in Depth’, multiple layers of controls are used to ensure security. Web filtering is a complimentary measure to other cyber security controls in a ‘Defence in Depth’ strategy. Other security measures include technical controls and administrative controls; Technical controls include effective antispam, antivirus programs and an Endpoint Detection and Response (EDR) product whereas Administrative controls include policies, procedures and guidelines to ensure your staff recognise possible sources of cyber security threats and understand their roles and responsibilities.
 

Web filtering at work

If a site is deemed a threat, then that site’s IP address is blocked by DNS filtering with access to it prevented. Good examples of sites that might be blocked are adult sites, gambling sites and sites that are high risk. There are recommended sites for blocking, but you can tailor filters for blocked sites to suit your unique needs.
 

What benefits can come from web filtering?

There are two major benefits; Safety is a significant benefit, as sites that may be malicious or harmful are blocked, protecting the network and the business; Productivity is the other big winner, where certain web addresses, like streaming sites, are filtered and staff cannot access these sites during business hours.
 

How do I get web filtering on my server or workstations?

Loyal I.T. Solutions has just added the DNS filter as an option as part of our managed services plans. It can be made available per workstation on a monthly agreement, or as a bulk licence if you are on an annual agreement.
 

Simply call Loyal I.T. Solutions on (02) 4337 0700 or email quotes for more information and to feel more secure.