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CleanBrowsing
CleanBrowsing is a free public DNS resolver with content filtering, founded by Daniel B. Cid and Tony Perez. It supports DNS TLS over port 853 and DNS over HTTP over port 443 in addition to the standard DNS over port 53. CleanBrowsing filters can be used by parents to protect their children from adult and inappropriate content online. Services CleanBrowsing has 3 standard filters accessible via the following anycast IP addresses: Family Filter Blocks access to adult content, proxy and VPNs, phishing and malicious domains. It enforces Safe Search on Google, Bing and YouTube. Adult Filter Less restrictive than the Family filter and only blocks access to adult content and malicious/phishing domains. Security Filter Blocks access to malicious and phishing domains. See also * DNS over TLS * Public recursive name servers A public recursive name server (also called public DNS resolver) is a name server service that networked computers may use to query the Domain Name Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNS Over HTTPS
DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol. A goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks by using the HTTPS protocol to encrypt the data between the DoH client and the DoH-based DNS resolver. By March 2018, Google and the Mozilla Foundation had started testing versions of DNS over HTTPS. In February 2020, Firefox switched to DNS over HTTPS by default for users in the United States. An alternative to DoH is the DNS over TLS (DoT) protocol, a similar standard for encrypting DNS queries, differing only in the methods used for encryption and delivery. Based on privacy and security, whether which protocol is superior is a matter of controversial debate; while others argue the merits of either depend on the specific use case. Technical details DoH is a proposed standard, published as RFC 8484 (October 2018) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNS Over TLS
DNS over TLS (DoT) is a network security protocol for encrypting and wrapping Domain Name System (DNS) queries and answers via the Transport Layer Security (TLS) protocol. The goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data via man-in-the-middle attacks. The well-known port number for DoT is 853. While DNS-over-TLS is applicable to any DNS transaction, it was first standardized for use between stub or forwarding resolvers and recursive resolvers, in in May of 2016. Subsequent IETF efforts specify the use of DoT between recursive and authoritative servers ("Authoritative DNS-over-TLS" or "ADoT") and a related implementation between authoritative servers (Zone Transfer-over-TLS or "xfr-over-TLS"). Server software BIND supports DoT connections as of version 9.17. Earlier versions offered DoT capability by proxying through stunnel. Unbound has supported DNS over TLS since 22 January 2018. Unwind has supported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Recursive Name Servers
A public recursive name server (also called public DNS resolver) is a name server service that networked computers may use to query the Domain Name System (DNS), the decentralized Internet naming system, in place of (or in addition to) name servers operated by the local Internet service provider (ISP) to which the devices are connected. Reasons for using these services include: * speed, compared to using ISP DNS services * filtering (security, ad-blocking, porn-blocking, etc.) * reporting * avoiding censorship * redundancy (smart caching) * access to unofficial alternative top level domains not found in the official DNS root zone *temporary unavailability of the ISP's name server Public DNS resolver operators often cite increased privacy as an advantage of their services; critics of public DNS services have cited the possibility of mass data collection targeted at the public resolvers as a potential risk of using these services. Several services now support secure DNS lookup trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anycast
Anycast is a network addressing and routing methodology in which a single destination IP address is shared by devices (generally servers) in multiple locations. Routers direct packets addressed to this destination to the location nearest the sender, using their normal decision-making algorithms, typically the lowest number of BGP network hops. Anycast routing is widely used by content delivery networks such as web and DNS hosts, to bring their content closer to end users. Addressing methods There are four principal addressing methods in the Internet Protocol: History The first documented use of anycast routing for topological load-balancing of Internet-connected services was in 1989, the technique was first formally documented in the IETF four years later in , and it was first applied to critical infrastructure in 2001 with the anycasting of the I-root nameserver. Early objections Early objections to the deployment of anycast routing centered on the perceived conflict betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TechRepublic
TechRepublic is an online trade publication and social community for IT professionals, providing advice on best practices and tools for the needs of IT decision-makers. It was founded in 1997 in Louisville, Kentucky, by Tom Cottingham and Kim Spalding, and debuted as a website in May 1999. The site was purchased by CNET Networks in 2001 for $23 million. TechRepublic was a part of the Red Ventures business portfolio alongside ZDNet, CNET, GameSpot, and Metacritic Metacritic is a website that review aggregator, aggregates reviews of films, TV shows, music albums, video games and formerly, books. For each product, the scores from each review are averaged (a weighted arithmetic mean, weighted average). M .... On August 9, 2021, a Nashville-based technology marketing company, TechnologyAdvice, announced the acquisition of TechRepublic. References External links * Computing websites Former CBS Interactive websites Internet properties established in 1997 1997 esta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CBS Interactive
Paramount Streaming (formerly CBS Digital Media Group, CBS Interactive, ViacomCBS Streaming), a division of Paramount Global, oversees the company’s streaming technology and offers direct-to-consumer services, free, premium and pay. These include Pluto TV, which has more than 250 live and original channels, and Paramount+, a subscription service that combines breaking news, live sports, and premium entertainment. History As CBS Interactive On May 30, 2007, CBS Interactive acquired Last.fm for £140 million (US$280 million). On June 30, 2008, CNET, CNET Networks was acquired by CBS and the assets were merged into CBS Interactive, including Metacritic, GameSpot, TV.com, and Movietome. On March 15, 2012, it was announced that CBS Interactive acquired video game-based website Giant Bomb and comic book-based website Comic Vine from Whiskey Media, who sold off their other remaining websites to BermanBraun. This occasion marked the return of video game journalism, video game jou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domain Name
A domain name is a string that identifies a realm of administrative autonomy, authority or control within the Internet. Domain names are often used to identify services provided through the Internet, such as websites, email services and more. As of 2017, 330.6 million domain names had been registered. Domain names are used in various networking contexts and for application-specific naming and addressing purposes. In general, a domain name identifies a network domain or an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, or a server computer. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Any name registered in the DNS is a domain name. Domain names are organized in subordinate levels (subdomains) of the DNS root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, info, net ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EDNS Client Subnet
EDNS Client Subnet (ECS) is an option in the Extension Mechanisms for DNS that allows a recursive DNS resolver to specify the subnetwork for the host or client on whose behalf it is making a DNS query. This is generally intended to help speed up the delivery of data from content delivery networks, by allowing better use of DNS-based load balancing to select a service address near the client when the client computer is not necessarily near the recursive resolver. When an authoritative name server receives a DNS query, it takes advantage of ECS DNS extension to resolve the hostname to a CDN which is geolocationally near to the client IP's subnet, hence the client makes further requests to a nearby CDN, thereby reducing latency. The EDNS client subnet mechanism is specified in . Privacy and security implications Because ECS provides client network information to upstream resolver, the extension reveals some information about the client's location that the resolver would not other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domain Name System Security Extensions
The Domain Name System Security Extensions (DNSSEC) are a suite of extension specifications by the Internet Engineering Task Force (IETF) for securing data exchanged in the Domain Name System (DNS) in Internet Protocol (IP) networks. The protocol provides cryptographic authentication of data, authenticated denial of existence, and data integrity, but not availability or confidentiality. Overview The original design of the Domain Name System did not include any security features. It was conceived only as a scalable distributed system. The Domain Name System Security Extensions (DNSSEC) attempt to add security, while maintaining backward compatibility. Request for Comments 3833 documents some of the known threats to the DNS, and their solutions in DNSSEC. DNSSEC was designed to protect applications using DNS from accepting forged or manipulated DNS data, such as that created by DNS cache poisoning. All answers from DNSSEC protected zones are digitally signed. By checking the digit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IPv4
Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP). It is one of the core protocols of standards-based internetworking methods in the Internet and other packet-switched networks. IPv4 was the first version deployed for production on SATNET in 1982 and on the ARPANET in January 1983. It is still used to route most Internet traffic today, even with the ongoing deployment of Internet Protocol version 6 (IPv6), its successor. IPv4 uses a 32-bit address space which provides 4,294,967,296 (232) unique addresses, but large blocks are reserved for special networking purposes. History Internet Protocol version 4 is described in IETF publication RFC 791 (September 1981), replacing an earlier definition of January 1980 (RFC 760). In March 1982, the US Department of Defense decided on the Internet Protocol Suite (TCP/IP) as the standard for all military computer networking. Purpose The Internet Protocol is the protocol that defines and enables internet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IPv6
Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communication protocol, communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet. IPv6 was developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of IPv4 address exhaustion, and is intended to replace IPv4. In December 1998, IPv6 became a Draft Standard for the IETF, which subsequently ratified it as an Internet Standard on 14 July 2017. Devices on the Internet are assigned a unique IP address for identification and location definition. With the rapid growth of the Internet after commercialization in the 1990s, it became evident that far more addresses would be needed to connect devices than the IPv4 address space had available. By 1998, the IETF had formalized the successor protocol. IPv6 uses 128-bit addresses, theoretically allowing 2128, or approximatel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium (website)
Medium is an American online publishing platform developed by Evan Williams and launched in August 2012. It is owned by A Medium Corporation. The platform is an example of social journalism, having a hybrid collection of amateur and professional people and publications, or exclusive blogs or publishers on Medium, and is regularly regarded as a blog host. Williams, previously co-founder of Blogger and Twitter, initially developed Medium as a means to publish writings and documents longer than Twitter's 140-character (now 280-character) maximum. In March 2021, Medium announced a change in its publishing strategy and business model. The change is to its mix of paid journalists working on its own publications – this will be proportionally reduced – versus its support of independent writers, which will increase. History 2012 (launched) - 2016 Evan Williams, Twitter co-founder and former CEO, created Medium to encourage users to create posts longer than the then 140-character ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
