A Record Also known as IP pointing, users can set a sub domain name here and point to their target host address to find the server through the domain name. explain The target host address type pointed to can only use IP address. 1) Add A record Fill in the name of the sub domain in the "Host Name", the "Type" is A, and the IP address of the web server in the "IP Address/Host Name", then click the "Add" button. Note: If the "Host Name" column is empty, it means that the domain name example.com itself is pointed. 2) Modify A record Just change the original IP address to the new IP address directly in the "IP address/host name" column, and then click the "Modify" button. 3) Delete A record Click the "Delete" button behind the A record to be deleted. 4) Universal domain name resolution That is, all unspecified subdomain names of the domain name point to a space. Fill in * in the "Host Name", A in the "Type", and the IP address of the web server in the "IP Address/Host Name". Click the "Add" button. 5) Implementation of load balancing Server Load Balancing (SLB) refers to the dynamic distribution of network load on a series of resources. Load balancing can reduce network congestion, improve the overall network performance, improve self-healing, and ensure the availability of enterprise critical applications. When the same sub domain name has multiple target addresses, it means that the round robin can achieve the purpose of load balancing, but it needs the support of the virtual host service provider. CNAME It is usually called alias pointing. You can set an alias for a host. For example, set test.example.com to point to a host www.example.com. Then you can use test.example.com instead of visiting www.example.com. explain The target host address of CNAME can only use the host name, not the IP address. The host name cannot be preceded by any other prefix, such as //, which is not allowed. A record takes precedence over CNAME record. That is, if both A record and CNAME record exist for a host address, the CNAME record will not be effective. 1) Add CNAME record Fill in the name of the sub domain in the "Host Name", the "Type" is CNAME, and the target address in the "IP Address/Host Name", then click the "Add" button. 2) Modify CNAME record Just change the original target address to the new address directly in the "IP address/host name" column, and then click the "Modify" button. 3) Delete CNAME record Click the "Delete" button behind the CNAME record to be deleted. MX record Mail exchange record. It is used to point the e-mail ending in this domain name to the corresponding mail server for processing. For example, if the user's email ends with the domain name example.com, the MX record of the domain name needs to be added in the management interface to process all emails ending with example.com. explain ： MX records can use the host name or IP address; MX records can be set as primary and secondary servers by setting priorities. The smaller the number in "Priority", the higher the level. You can also use the same priority to achieve load balancing; If you fill in the sub domain name in the "Host Name", this MX record will only be effective for this sub domain name. 1) Add MX Record The "Host Name" column is empty, the "Type" is MX, and the "IP Address/Host Name" is filled with the target address or IP, Fill in the number (must be an integer) in "Priority", and click the "Add" button. 2) Modify MX record Just modify the original target address or IP directly to the new address or IP in the "IP Address/Host Name" column, and then click the "Modify" button. 3) Delete MX record Click the "Delete" button behind the MX record to be deleted. 4) Load balancing Server Load Balancing (SLB) refers to the intelligent distribution of network load on a series of resources. Load balancing can reduce network congestion, improve the overall network performance, improve self-healing, and ensure the availability of enterprise critical applications. When the MX record of the domain name has multiple target addresses and the priority is the same, it means that the rotation can achieve the purpose of load balancing, but needs the support of the mailbox service provider. NS Records Resolve server records. It indicates which server resolves the domain name. The NS record here is only effective for sub domain names. For example, if the user wants the 12.34.56.78 server to resolve news.example.com, he needs to set the NS record of news.example.com. explain ： The smaller the number in "Priority", the higher the level; In "IP address/host name", you can fill in either the IP address or the host address such as ns.example.com, but you must ensure that the host address is valid. For example, point the NS record of news.example.com to ns.example.com. When setting the NS record, you also need to set the direction of ns.example.com, otherwise the NS record will not be resolved normally; NS records take precedence over A records. That is, if both NS records and A records exist for a host address, the A record will not take effect. The NS record here is only effective for sub domain names. 1) Add NS Record Fill in the name of the sub domain in the "Host Name", the "Type" is NS, and the IP address or name of the resolution server (such as ns. exemplecom) in the "IP Address/Host Name", then click the "Add" button. 2) Modify NS record Just modify the original server target address or IP directly to the new address or IP in the "IP Address/Host Name" column, and then click the "Modify" button. 3) Delete NS record Click the "Delete" button behind the NS record to be deleted. TTL value The full name of TTL value is "Time To Live", which simply means the time when DNS records are cached on the DNS server. The DNS server of Oriental Netscape takes effect immediately by default, and customers can add and modify it within 15 minutes. |
