linux - After ngxin is configured, the web page cannot be opened

Question

I bought a cloud server ECS from Alibaba Cloud. The system is CentOS7.2 64-bit; now I can ping the server and domain name address; everything is OK, but the web page cannot be opened; what is the problem? On Linux, wget domain name also prompts that the resolution failed

cloudmam · Answer

Alibaba Cloud Server can try Cloud Helper Operation and Maintenance Management

phpcn_u5126 · Answer

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phpcn_u5126 · Answer

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phpcn_u5126 · Answer

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ringa_lee · Answer

1. Check whether the firewall has opened port 80
2. Whether the ECS security group has opened port 80

过去多啦不再A梦 · Answer

What does it mean if it cannot be opened? Is there a status code?

过去多啦不再A梦 · Answer

1. Check whether firewalld port 80 is open

firewall-cmd --zone=public --list-ports

Open the port if it is not open

firewall-cmd --zone=public --add-port=80/tcp --permanent  
firewall-cmd --reload

2. Check the security group of this instance of Alibaba Cloud backend ecs and see if port 80 is not open in the configuration rules