{"id":49498,"date":"2022-11-29T23:43:00","date_gmt":"2022-11-29T23:43:00","guid":{"rendered":"https:\/\/www.networkworld.com\/article\/2876173\/6-dns-services-protect-against-malware-and-other-unwanted-content.html#tk.rss_security"},"modified":"2022-11-29T23:43:00","modified_gmt":"2022-11-29T23:43:00","slug":"5-dns-services-to-provide-a-layer-of-internet-security","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/5-dns-services-to-provide-a-layer-of-internet-security\/","title":{"rendered":"5 DNS services to provide a layer of internet security"},"content":{"rendered":"
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Having thorough IT security usually means having a layered approach. Basic antivirus, for instance, might catch PC-based malware once a user downloads it, but you could try to block it before it ever reaches the user device, or at least have another security mechanism in place that might catch it if the basic antivirus doesn\u2019t. DNS-based filtering can do this! It can help stop users from browsing to malware and phishing sites, block intrusive advertising to them, and serve as adult content filters.<\/p>\n

First, a quick primer for those who are unfamiliar with DNS: You utilize the Domain Name System (DNS)<\/a> every time you surf the Web. Each time you type a site name into the browser, DNS is queried for the IP address corresponding to that particular domain, so the browser can contact the Web server to get the content. The process of converting the domain name to its IP address is called domain-name resolution.<\/p>\n

There are two main types of DNS servers: recursive and authoritative. The ones that are used by most individuals and small companies (and that are covered here) are called recursive DNS and are the default services provided by most Internet Service Providers (ISPs). All the companies listed here offer recursive DNS services. Some of them, however, also sell authoritative DNS services, which allow website owners or hosts to define the web server IP addresses that their domain names point to and to manage other DNS settings.<\/p>\n

Since DNS servers are the middlemen between your browser and website content, there are many third-party DNS services that offer additional functionality for both users and network administrators. These tools can include:<\/p>\n