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全球免费DNS集合

时间:2017-10-09  来源:  作者:

Best DNS: The Best Free DNS Servers提供最好最全的免费DNSD0U免费翻墙网

http://www.bestdns.org/D0U免费翻墙网

Providers     Primary DNS     Secondary DNS     Server LocationD0U免费翻墙网
            D0U免费翻墙网
OpenDNS     208.67.222.222     208.67.220.220     San Antonio, Texas, USAD0U免费翻墙网
Level3     209.244.0.3     209.244.0.4     Diamond Bar, California, USAD0U免费翻墙网
DNS Advantage     156.154.70.1     156.154.71.1     Sterling, Virginia, USAD0U免费翻墙网
Verizon     4.2.2.1     4.2.2.2     Routing to nearest Level3 nodesD0U免费翻墙网
SmartViper     208.76.50.50     208.76.51.51     Birminghan, Alabama & Tampa, Florida USAD0U免费翻墙网
Google     8.8.8.8     8.8.4.4     D0U免费翻墙网
DNS.WATCH     84.200.69.80     84.200.70.40     D0U免费翻墙网
Comodo Secure DNS     8.26.56.26     8.20.247.20     D0U免费翻墙网
OpenDNS Home     208.67.222.222     208.67.220.220     D0U免费翻墙网
DNS Advantage     156.154.70.1     156.154.71.1     D0U免费翻墙网
Norton ConnectSafe     199.85.126.10     199.85.127.10     D0U免费翻墙网
GreenTeamDNS     81.218.119.11     209.88.198.133     D0U免费翻墙网
SafeDNS     195.46.39.39     195.46.39.40     D0U免费翻墙网
OpenNIC     107.150.40.234     50.116.23.211     D0U免费翻墙网
Dyn     216.146.35.35     216.146.36.36     D0U免费翻墙网
FreeDNS     37.235.1.174     37.235.1.177     D0U免费翻墙网
censurfridns.dk     89.233.43.71     91.239.100.100     D0U免费翻墙网
Hurricane Electric     74.82.42.42         D0U免费翻墙网
puntCAT     109.69.8.51         D0U免费翻墙网
FoeBuD e.V.     85.214.73.63         DeutschlandD0U免费翻墙网
German Privacy Foundation e.V.     87.118.100.175         DeutschlandD0U免费翻墙网
German Privacy Foundation e.V.     94.75.228.29         DeutschlandD0U免费翻墙网
German Privacy Foundation e.V.     85.25.251.254         DeutschlandD0U免费翻墙网
German Privacy Foundation e.V.     62.141.58.13         DeutschlandD0U免费翻墙网
Chaos Computer Club Berlin     213.73.91.35         DeutschlandD0U免费翻墙网
ClaraNet     212.82.225.7         DeutschlandD0U免费翻墙网
ClaraNet     212.82.226.212         DeutschlandD0U免费翻墙网
OpenDNS     208.67.222.222         USAD0U免费翻墙网
OpenDNS     208.67.220.220         USAD0U免费翻墙网
OpenNIC     58.6.115.42         AustralienD0U免费翻墙网
OpenNIC     58.6.115.43         AustralienD0U免费翻墙网
OpenNIC     119.31.230.42         AustralienD0U免费翻墙网
OpenNIC     200.252.98.162         BrasilienD0U免费翻墙网
OpenNIC     217.79.186.148         DeutschlandD0U免费翻墙网
OpenNIC     81.89.98.6         DeutschlandD0U免费翻墙网
OpenNIC     78.159.101.37         DeutschlandD0U免费翻墙网
OpenNIC     203.167.220.153         NeuseelandD0U免费翻墙网
OpenNIC     82.229.244.191         FrankreichD0U免费翻墙网
OpenNIC     82.229.244.191         TschechienD0U免费翻墙网
OpenNIC     216.87.84.211         USAD0U免费翻墙网
OpenNIC             USAD0U免费翻墙网
OpenNIC             USAD0U免费翻墙网
OpenNIC     66.244.95.20         USAD0U免费翻墙网
OpenNIC             USAD0U免费翻墙网
OpenNIC     207.192.69.155         USAD0U免费翻墙网
OpenNIC     72.14.189.120         USAD0U免费翻墙网
DNS Advantage     156.154.70.1         USAD0U免费翻墙网
DNS Advantage     156.154.71.1         USAD0U免费翻墙网
Comodo Secure DNS     156.154.70.22         USAD0U免费翻墙网
Comodo Secure DNS     156.154.71.22         USAD0U免费翻墙网
PowerNS     194.145.226.26         DeutschlandD0U免费翻墙网
PowerNS     77.220.232.44         DeutschlandD0U免费翻墙网
ValiDOM     78.46.89.147         DeutschlandD0U免费翻墙网
ValiDOM     88.198.75.145         DeutschlandD0U免费翻墙网
JSC Marketing     216.129.251.13         USAD0U免费翻墙网
JSC Marketing     66.109.128.213         USAD0U免费翻墙网
Cisco Systems     171.70.168.183         USAD0U免费翻墙网
Cisco Systems     171.69.2.133         USAD0U免费翻墙网
Cisco Systems     128.107.241.185         USAD0U免费翻墙网
Cisco Systems     64.102.255.44         USAD0U免费翻墙网
DNSBOX     85.25.149.144         DeutschlandD0U免费翻墙网
DNSBOX     87.106.37.196         DeutschlandD0U免费翻墙网
Christoph Hochstätter     209.59.210.167         USAD0U免费翻墙网
Christoph Hochstätter     85.214.117.11         DeutschlandD0U免费翻墙网
privat     83.243.5.253         DeutschlandD0U免费翻墙网
privat     88.198.130.211         DeutschlandD0U免费翻墙网
privat (i-root.cesidio.net, cesidio root included)     92.241.164.86         RußlandD0U免费翻墙网
privat     85.10.211.244         DeutschlandD0U免费翻墙网
D0U免费翻墙网
 D0U免费翻墙网
D0U免费翻墙网
The Domain Name System (DNS) is a hierarchical distributed naming system for some resource, services, or computers on a private network or the web. It links domain names assigned to all the participating things and various advice. Most conspicuously, it interprets domain names, which people can easily memorize, to the numeric IP addresses required for the goal of apparatus and computer services world-wide. The Domain Name System is a critical part of most Internet services‘ functionality as it’s the primary directory service of the Internet.D0U免费翻墙网
D0U免费翻墙网
The Domain Name System spreads the duty of assigning domain names by designating authorized name servers for every domain name and mapping those names. Authorized name servers are delegated to lead to their domain names that were supported, and could delegate power over sub domains to other name servers. This mechanism supplies distributed and fault tolerant service and was made to prevent the dependence on a principal database that is single.D0U免费翻墙网
D0U免费翻墙网
The Domain Name System additionally defines the technical functionality which will be at its heart. It defines the DNS protocol, a comprehensive specification of data communication exchanges and the data structures used in DNS, within the Internet Protocol Suite. Historically, other directory services preceding DNS are not scalable to big or global directories as they were initially according to text files, conspicuously the HOSTS.TXT resolver. DNS continues to be in extensive use.D0U免费翻墙网
D0U免费翻墙网
The web keeps two principal namespaces, the domain name hierarchy[1] as well as the Internet Protocol (IP) address spaces.[2] The Domain Name System keeps the domain name hierarchy and offers translation services between it as well as the address spaces. Internet name servers and a communication protocol execute the Domain Name System.[3] A DNS name server is a server that stores the DNS records to get a website name; a DNS name server reacts with responses to queries against its database.D0U免费翻墙网
D0U免费翻墙网
The most frequent forms of records saved in the DNS database are those coping with a DNS zone’s ability power (SOA), IP addresses (A and AAAA), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS lookups (PTR), and domain name aliases (CNAME). Although not meant to be a general purpose database, DNS can save records for other kinds of data for either automatic machine lookups for things or for human queries like responsible individual (RP) records. To get an entire listing of DNS record types, start to see the set of DNS record types. DNS has additionally seen use in fighting unsolicited e-mail (junk) by employing a realtime blackhole list saved in a DNS database. For general purpose uses or whether for Internet naming, the DNS database is kept in a zone file that was ordered.D0U免费翻墙网
D0U免费翻墙网
FunctionD0U免费翻墙网
D0U免费翻墙网
An often-used analogy to spell out the Domain Name System is the fact that it functions as the telephone book by interpreting individual-friendly computer hostnames. As an example , the domain name www.example.com translates to the addresses 93.184.216.119 (IPv4) and 2606:2800:220:6d:26bf:1447:1097:aa7 (IPv6). Unlike a phone book, the DNS could be instantly upgraded, enabling the place on the network to alter without changing the end users, who continue to make use of the exact same host name of a service. Users benefit from this when they use significant Uniform Resource Locators (URLs), without needing to understand how the services are really located by the computer and e-mail addresses.D0U免费翻墙网
HistoryD0U免费翻墙网
D0U免费翻墙网
Using a more straightforward, more memorable name in place of the numeric address of a host goes back to the ARPANET age. The Stanford Research Institute (now SRI International) kept a text file named HOSTS.TXT that mapped host names to the numeric addresses of computers on the ARPANET. Host operators got copies of the master file.[4][5] The rapid growth of the emerging network needed an automated system for keeping the host names and addresses.D0U免费翻墙网
D0U免费翻墙网
The Domain Name System was designed by Paul Mockapetris in 1983 in the University of California, Irvine, and composed the initial execution from UCLA in the request. The Internet Engineering Task Force released the first specifications in RFC 882 and RFC 883 in November 1983, for naming Internet hosts, that have stayed the standard.[citation needed]D0U免费翻墙网
D0U免费翻墙网
In 1984, four UC Berkeley pupils–Douglas Terry, Mark Painter, David Riggle, and Songnian Zhou–wrote the initial Unix name server execution, called the Berkeley Internet Name Domain (BIND) Server.[6] In 1985, Kevin Dunlap of DEC significantly revised the DNS implementation. Mike Karels, Phil Almquist, and Paul Vixie have maintained BIND since then.[7] BIND was ported to the Windows NT platform in the early 1990s. BIND was widely distributed, particularly and is the most commonly used DNS applications online.[7]D0U免费翻墙网
D0U免费翻墙网
In November 1987, RFC 1034[1] and RFC 1035[3] superseded the 1983 DNS specifications. Several added Request for Opinions have proposed extensions to the central DNS protocols.D0U免费翻墙网
D0U免费翻墙网
Security problemsD0U免费翻墙网
D0U免费翻墙网
Initially, security concerns are not important design factors for DNS software or some applications for deployment on the Internet that is first, as the network had not been open for involvement from the public. But the growth of the world wide web to the commercial sector altered the conditions for security measures.D0U免费翻墙网
D0U免费翻墙网
Malicious users found and used several susceptibility problems. One problem is DNS cache poisoning, where data is dispersed to caching resolvers under the pretense of being a source server that is important, thus polluting the data store with long expiration times and possibly bogus information (time to live). Later, valid program requests could be redirected to network hosts controlled with malicious purpose.D0U免费翻墙网
D0U免费翻墙网
DNS answers are not signed, leading to many strike possibilities; the Domain Name System Security Extensions (DNSSEC) change DNS to include support for answers that are signed. DNSCurve continues to be suggested instead to DNSSEC. Other extensions, for example TSIG, add support for cryptographic authentication between peers that are trusted and can be used to authorize dynamic update operations or zone transport.D0U免费翻墙网
D0U免费翻墙网
Some domain names can be utilized to attain effects that were spoofing. As an example, paypal.com and paypa1.com are different names, yet users might not be able differentiate them in a graphical user interface according to an individual ’s preferred typeface. In several fonts the numeral 1 as well as the letter l appear even indistinguishable or quite similar. This issue is critical in systems that support internationalized domain names, since many character codes may seem indistinguishable on computer screens that are typical. This susceptibility is sometimes used [19]D0U免费翻墙网
D0U免费翻墙网
Techniques including forward-confirmed reverse DNS may also be utilized to validate DNS results.D0U免费翻墙网
Domain name registrationD0U免费翻墙网
D0U免费翻墙网
The privilege to make use of a site name is delegated by domain name registrars which are accredited by the Internet Corporation for Assigned Names and Numbers (ICANN) or other organizations like OpenNIC, which are charged with supervising number systems and the name of the world wide web. As well as ICANN, each top-level domain (TLD) serviced and is kept by an administrative organization, running a registry. There is a registry responsible for keeping the database of names registered within the TLD it manages. The registry releases the advice using the WHOIS protocol a particular service, and receives enrollment information from every domain name registrar authorized to assign names in the accompanying TLD.D0U免费翻墙网
D0U免费翻墙网
ICANN releases the entire list of domain name registrars and TLD registries. Registrant advice related to domain names is kept in a web-based database reachable with the WHOIS service. For most of the more than 290 country code top-level domains (ccTLDs), the domain registries keep the WHOIS (Registrant, name servers, expiration dates, etc.) advice. For example, DENIC, Germany NIC, holds the DE domain name data. Since about 2001, most gTLD (Generic top-level domain) registries have embraced this so called thick registry strategy, i.e. keeping the WHOIS data in essential registries instead of registrar databases.D0U免费翻墙网
D0U免费翻墙网
For NET domain names and COM, there is a thin registry version used. The domain registry (e.g., VeriSign) holds essential WHOIS data (i.e., registrar and name servers, etc.) You can discover the detailed WHOIS (registrant, name servers, expiry dates, etc.) at the registrars.D0U免费翻墙网
D0U免费翻墙网
Some domain name registries, frequently called network information centres (NIC), additionally function to end users as registrars. The leading generic top-level domain registries, for example for the domains COM, NET, ORG, INFORMATION, make use of a registry-registrar model comprising many domain name registrars.[20][21] In this approach to control, the registry simply handles the domain name database as well as the relationship with all the registrars. The registrants (users) are customers in certain situations through added levels of resellers.D0U免费翻墙网

来自http://www.bestdns.org/D0U免费翻墙网

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