Archive for DNS servers
Converting website names into IP addresses is the main role the DNS servers. It is for our ease and convenience that human readable domain names have been created. Actually these human readable domains that we type are again changed into IP addresses. So in simple words the fundamental job of the DNS is to convert the domain name into its particular IP address and IP address to its corresponding domain name. Both domain and IP addresses have the same task i.e. to open a website. So accordingly it can be just said that a particular IP address cannot be of more than one domain.
DNS Server Types
Recursive & non-Recursive are the two main types of DNS Servers. In a recursive, the client sends queries and receives complete feedback from the ISP’s recursive DNS Servers. This could also result in engaging the servers. A non-recursive DNS is one which provides a record of the domain without engaging other servers. Recursive server is mostly used at lower level such as in LAN networking. While the non-recursive servers are probably used for elite levels because of a higher number of requests, so that it provides partial results without engaging other servers.
Using Chroot network is highly recommended for security reasons. Chroot environment is a process that produces a file that clones the main root system so that if an attacker is cracking the network to reach the root system, he cannot damage the whole system, because he has no access to those files which are not on that network.
There are many issues resulting in the compromising on the DNS Security. Redirection is also a major problem in which an attacker is able to redirect name queries to the DNS servers controlled by him. Flooding one or more DNS servers on a network with recursive queries is a way by which an attacker denies the availability of network services. This is known as Denial of Service Attack. There is a process called foot print in which DNS Zone data could be obtained by the attacker to get information about domain names, computer names and IP addresses.
Advantages of DNS Server
The main advantage of DNS Server is that it is free and fast. One could surf on internet not only safely but also quickly. One can add the DNS domains manually in TCP / IP networks, so it is not only easier but also safer.
When it comes to surf the internet, free and fast DNS Servers are readily available. One can find many free DNS Providers on the internet that could act as a solid rung towards providing the particular DNS server according to requirement. Some of best providers are given below:
SpeakEasy (Seattle, WA, US)
- 126.96.36.199 Read More
It is very difficult to manage and DNS-server. It is quite difficult and can cause many problems to those who are unaware of this server but there are different instructions available on different websites and as well as in different DNS-server books. If a user follows these instructions, there will be no problem in managing a DNS-server. Following are some detail about the DNS-server and related problems.
Comcast is one of the most famous organization that is working against the problems of DNS-server. This organization is providing many useful tips and methods to the users to solve and fix the DNS-server connection problems. Comcast recommends the users to switch on the DNS to fix the problem as it is highly recommended.
Links provided by Comcast
Comcast is providing the solutions related to DNS-server and for this they recommend to follow their instructions and guideline. Comcast recommend following links to learn the solution;
There are many DNS-servers. Every server is designed according to different countries. There are many types of DNS-servers like GTE, level-3 and Verizon. These all are too good in their performance and all provides a user, very good and fast speed. Following are the recommended DNS-servers:
ORSC’s public server
Many organizations are also recommending ORSC’s public server. This server is also very fast and good in its speed.
There are different problems that occur during browsing the internet. These problems are caused due to several reasons. Some times sites are working properly and fast. But some times there are some problems occur with our servers. Our servers open BSNL and opens DNS servers, so that they can update the server. To solve this problem, you can use DNS server to open any specific website.
DNS is the abbreviation of Domain Name System. This is a computer language to define any address or URL.
The DNS is in short, defines the address of different websites. For example, if you type any website in the address bar of your browser, it will automatically find the DNS server so that it could connect with the website. Without the DNS server it is not possible to connect to any website. On DNS server demand the server answer that contains an IP address. This IP address actually determines the location of the source.
Use of different DNS, when DNS default is slow
This is a normal problem when domain is moved and ISP banned the server to connect with any website. In such a case you can not view the websites and content of the page.
The Domain Name System (DNS) is a standard technology for managing the names of Web sites and other Internet domains. DNS technology allows you to type names into your Web browser like www.yahoo.com and your computer automatically find that address on the Internet.
A key element of the DNS is a worldwide collection of DNS servers. A DNS server can also be defined as any computer registered to join the Domain Name System.
A DNS server runs special-purpose networking software, features a public Internet Protocol (IP) address and contains a database of network names and addresses for other Internet hosts.
A Common Problem
Sometimes the DNS errors are really frustrating. Though you are connected to the internet, but quite often the browser come up with the error when you type a address “This page cannot be displayed” with the “Cannot find server or DNS error” at the bottom always shows up.
In fact, this is very common problem. Actually, most of us use automatic settings to obtain the DNS address and by this way connect through the DNS address supplied by our Internet Service Provider (ISP). If the ISP’s DNS cannot resolve the IP address issue of the websites, you will get the above mentioned DNS error.
In order to resolve this problem, you can change the DNS address to any of the following DNS servers. Below are also given the detailed instruction for changing DNS Server Addresses: