In the process of building a website with overseas hosting rental, various problems often occur. The most common problem is that the website built by overseas hosting rental cannot run properly. If you encounter problems building a website on an overseas host that cannot run, there may be a variety of reasons. Here are some common possibilities and workarounds:

　　Server configuration error:

　　Solution: Check your server configuration file to ensure that the relevant configurations of the web server (such as Nginx, Apache) and application server (such as Node.js, Tomcat) are set correctly. Check the error log for more information.

　　The port is not open:

　　Solution: If using a firewall or cloud service security group, make sure the ports required by your application are open. Configure firewall rules or security group rules to allow traffic to pass.

　　Domain name resolution problem:

　　Solution: Make sure your domain name has been correctly resolved to the server’s IP address. Check the DNS settings to ensure that the domain name resolution is normal.

　　File permission issues:

　　Solution: Check the permission settings of your website files and directories. Make sure that the web server process (such as www-data, nginx) has sufficient permissions to access the file.

　　Database connection problem:

　　Solution: If your website uses a database, make sure the database connection information is correct. Check that the database server is running and you can connect to the database from your application.

　　The service is not started:

　　Solution: Make sure your web server and application server are started. Check the server process status to make sure they are running.

　　Firewall blocks traffic:

　　Solution: Check the firewall settings on the server to make sure it is not blocking your traffic. Check the firewall logs for any information about blocking.

　　Software version is incompatible:

　　Solution: Make sure your application and related software versions are compatible. Sometimes, compatibility issues between different versions can cause an app to not function properly.

　　Configuration error:

　　Solution: Double-check your application configuration file to make sure all settings are correct. Check the application's error log for more information.

　　Internet problem:

　　Solution: Check the server's network connection to ensure it can access the Internet normally. Sometimes, network issues can prevent your app from connecting to external resources or services.

　　If you're still having trouble troubleshooting the problem, looking at the server's error logs and the application's logs may provide more clues. Before solving the problem, make sure you have a good understanding of the server environment and application.