Overview of OpenDNS
OpenDNS is a cloud-based service that enhances internet security, performance, and content filtering by leveraging the Domain Name System (DNS) at its core. Developed by Cisco, OpenDNS is designed to provide a robust and reliable DNS resolution process, making it an essential component of modern network infrastructure.
What OpenDNS Does
OpenDNS acts as a DNS resolver, converting domain names into IP addresses, a process crucial for accessing websites and online services. Unlike traditional DNS services provided by Internet Service Providers (ISPs), OpenDNS focuses on delivering superior security, speed, intelligence, and reliability.
Key Features
Security
- OpenDNS offers advanced security features such as phishing protection, malware blocking, and botnet prevention. It maintains a continuously updated database of malicious IP addresses, ensuring users are protected from various cyber threats.
- The service provides 24/7 cloud security, which is particularly beneficial for businesses with cloud-based systems, allowing IT staff to focus on other tasks while maintaining high-level security.
Content Filtering
- OpenDNS allows for custom content filtering, enabling users to block specific web addresses or categories of content. This feature is especially useful for parental control, as it helps parents restrict access to inappropriate sites such as adult, gambling, or social media sites.
Performance
- OpenDNS is known for its fast DNS resolution process, utilizing anycast routing technology to ensure that users connect to the nearest datacenter, resulting in faster web page loading times and an overall improved internet experience.
- The service operates the largest and most up-to-date DNS caches, reducing DNS response times by providing immediate answers to most DNS requests.
Plans and Pricing
- OpenDNS offers several plans, including free options such as the Family Shield and Home plans, which provide basic content filtering and phishing protection. Paid plans include the Home VIP and Umbrella Prosumer, which offer additional features like internet usage statistics, allow-lists, and enhanced security for multiple user profiles.
Ease of Use and Support
- Setting up OpenDNS is straightforward and involves configuring the DNS settings on your home router, individual computers, or wireless devices using OpenDNS’s nameservers (208.67.222.123 or 208.67.220.123).
- OpenDNS provides direct email support, detailed documentation, and a support forum to help users manage and troubleshoot the service.
Functionality
DNS Resolution
- OpenDNS handles DNS requests directly, bypassing the ISP’s DNS server. This ensures faster and more secure domain name resolution.
Allow-Lists and Blacklists
- Paid users can create allow-lists to restrict internet access to specific domains, which is useful in environments like schools where focused internet use is necessary.
Internet Usage Statistics
- Subscribers to paid plans can access a year’s worth of internet usage statistics, helping them monitor and improve their browsing habits.
In summary, OpenDNS is a powerful tool that enhances network security, improves internet performance, and provides robust content filtering capabilities, making it an indispensable service for both home users and enterprises.