How-To: Deploying DNS-based filtering

How-To: Deploying DNS-based filtering

How it works

DNS based monitoring / filtering works by having Rawstream process the DNS requests from your network. Configure your machine or network router to use the Rawstream DNS servers to answer the DNS queries.

When Rawstream receives a DNS query, it checks to see if the source IP is from a customer’s network. If it is, Rawstream maps the IP address to the customer’s policy for that IP CIDR and apply the policy. If the domain in the DNS query is to be blocked, then the Rawstream DNS server answers with the IP address of our blocking server which shows a configured message. This message can be customized and supports HTML.

Configuring DNS-based filtering

Log in to your Rawstream account. If you have not yet created a network, you will see a wizard that will guide you through the process of defining a network. Once the process is ready, set your machine, or network router to use the Rawstream DNS servers.

Dynamic IP networks

If you are on a network which has a non-static IP you will need to download and install the Rawstream Dynamic Agent. This agent runs in the background and only needs to be installed once on any machine in the network. The job of this agent is to regularly update Rawstream with the dynamic IP of the network.

Related posts

Stranger, meet WiFi

Stranger, meet WiFi

The not-so-sexy risks of having unprotected Airbnb networks A solid Wifi connection is now considered essential by most guests looking for a short-term rental on Airbnb.  Most hosts, especially in cities, will find that their booking requests drop dramatically if internet is not included...

Managing Email Preferences

When you create a Rawstream account we send a daily summary email with key charts and data. By default we send the email to the email address used to sign up for Rawstream. If you want to add or remove emails to the list that will be sent the daily email you can simply do so from the...

How To: Redirecting blocked users to another page

In our previous blog post we talked about custom block pages. Following that post we received a question about how to redirect blocked users to a domain or page. Rawstream supports any valid HTML content as a block page, including Javascript. Using Javascript it is very simple to redirect...