Today, we will analyze the dual line server: the domain name resolution of No. 1 from the perspective of micro network. First of all, we should set the default route to Telecom. If it is China Unicom, we should choose Unicom. Here, let's make an explanation. Telecom takes the telecom route, while Netcom takes the Netcom route, which leads to mobile users or some education network users not knowing which route to take to open the website, unable to resolve the IP, or parsing errors. 2. If the resolution of these two lines is normal, but if the telecom IP is blocked, the telecom users can't access the website normally. Because the previous settings have set up access to the telecom IP, it can't be done after the problem occurs, so the problem will occur. When a line fails, how can the user's access not be affected? This paper proposes the dual line of intelligent domain name system and load balancing of intelligent domain name system. Special attention should be paid here. Although each DNS resolver has the same DNS resolution background, I recommend contacting the DNS resolver to check whether the settings are normal when setting complex intelligent DNS resolution to achieve load balancing. Therefore, the previous settings must be set before performing normal access. The analysis of two-wire servers is sometimes very flexible for users. I hope that the explanation of the Micronet can make you more satisfied.