he website design is completed and the host has been found. The last step in setting up the website is to set up DNS and point the URL to the correct website host (IP). Clam? ! What is DNS? DNS is “a system that manages the relationship between URLs and IPs .” DNS allows websites around the world to point to the correct “website host location (IP).” The correct DNS URL points to the website and can be connected normally. The wrong DNS URL points to the Website errors or unstable connections occur. Novices in website installation must bulk mail masters thoroughly understand DNS. Only when the website cannot be installed or the website is unstable will they know how to check DNS.
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What is DNS?
The full name of DNS is “Domain Name Server”. “Domain” and “website” have the same meaning, just different names. DNS is the server that manages website names and is responsible for pointing the website to Correct host (IP) . The host can be a website host (Web Server), a mail host (Mail Server), or an enterprise resource planning (ERP). DNS is the manager who specifically manages which IPs the URLs point to.
What is an IP address?
DNS is a server that manages web addresses. Before discussing web addresses, we must first talk about “What is IP?”. Do people often ask you “What is your computer’s IP?” IP is “ip address” and is your network. Positioning can also be imagined as GPS coordinates . IP is a unique combination of four numbers from 1 to 254, such as 168.95.1.1. An IP represents the location of a host, whether it is a server or a personal computer. (PC) and mobile phones (Mobile) both need an IP to represent the “point” of the connection. The “connection between IP and IP” is the “connection between points”. Only with IP can the online world be free. connection.
Just use IP, why do you need a URL?
IP is like GPS positioning. The same GPS coordinates can be a commercial building. There will be multiple companies (websites) in a building. Multiple websites can share the same IP at the same time, so it is necessary to use the URL to distinguish creating personalized marketing campaigns on telegram which one. Which company is the website address?” In addition, IP is a string of numbers that is difficult to remember. It will be easier to remember if you use a meaningful URL. This also gave rise to the keyword search engine service (SEO) that later used “URL as search results”.
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Why do you need a DNS server?
There are a lot of IPs and URLs. Which URL should point to which IP? Who decides these rules? It is decided by DNS (Domain Name Server). DNS can decide which IP your website should point to, which IP your mail server is, which IP your ERP website is. The URL Name Service System (DNS) clearly defines the URL rules. , allowing websites around the world to maintain unified rules and order.
Before setting up DNS, you need to buy a URL first
Before setting the URL to DNS, you must first spend money to buy a URL. There are many companies that can buy URLs, such as Godaddy, Pchome, Asia Pacific Online, Chunghwa Telecom… You can buy them in many places. After buying the URL, just go to “Buy” “Set the DNS of the website unit.” If you go to Asia Pacific to buy the website online, you have to go to Asia Pacific to set the DNS.
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DNS management is divided into two methods
When you go to the website registrar to set up DNS, you will see that there are two setting methods. One is to entrust the domain registrar to manage the DNS on its behalf, which we call “DNS hosting”. The other is to set it to point to your own server. DNS self-management is usually called “DNS self-management”. Both DNS management methods can achieve the task of correctly pointing the URL to the host IP.
DNS hosting
When an enterprise does not have the ability to set up its own DNS management website and IP, the most convenient way is to use “DNS hosting” to use the DNS provided by the website company, and directly set the website address and IP according to the needs to complete the DNS setting task.
- Advantages: You don’t have to spend extra line data money to find people or buy equipment to build a DNS host. You don’t have to worry about DNS host failure. You can also purchase additional information security protection, such as defense against DDOS (distributed denial of service).
- Disadvantages : There are restrictions on the number of URLs and setting parameters, and the DNS host hosted by the domain registrar is often very slow to update. Some URL registrars even have to wait until about 24 hours to check the set DNS, right? Correct, in case it is not set properly, you will have to wait another 24 hours to reset.
DNS self-management
Another mode for domain registrars to manage DNS is “DNS Self-Management”. First, you need to set up a DNS host yourself, or a website design company has a DNS, then you can set up “DNS Self-Management”, which provides the flexibility of self-managed DNS addresses. It is the largest and can be set arbitrarily without too many restrictions.
- Advantages: There are no restrictions on the number or parameters of website settings. The website update speed is fast and can be updated locally in less than an hour. It is more convenient for management that requires flexibility.
- Disadvantages: You need to spend money to find engineers and buy equipment to build a DNS host. There is a risk of failure of the DNS host. However, if the website design company has the technology to set up the DNS by itself, then they will be responsible for managing the DNS management and security protection, so there is no need to worry too much. The website design company will bear the risks and liabilities.