java - 域名解析成功，网站依然无法访问，该怎么解决

Question

从阿里云上解析的域名，成功后访问域名但打不开，提示Error Page Messages。服务器上原本有IIS部署的项目，我自己的是用Tomcat部署的，由于二者有端口冲突，后来就把项目访问方式改成了域名加端口号（8088），访问域名加端口号8088则提示网络连接错误。后来想到可能是端口没有开放，但询问之后发现客户服务器上根本没开防火墙，只开了360杀毒和360安全卫士。现在实在找不到问题所在了，哪位大神解答下，万分感谢！

Answer 1

You can directly use ip + port to access and see if you can’t access it, it should be that your web application is not running

Answer 2

Whether your server is not open to the public8088端口?本地能访问不代表外网也能访问,只能说你服务是起起来了.
默认云服务器是只开放80端口跟windows的3389(mstsc),linux的23端口(shell), of course it depends on the specific cloud service, Amazon is like this.

Answer 3

It may also be that the Alibaba Cloud security group does not have open ports. In the Alibaba Cloud management console, there is a security group.