阿里云服务器CentOS 8.0安装Docker使用Outline遇到下面的问题，你们遇到过吗？

Question

第一：阿里云服务器CentOS 8.0在已经成功安装Docker
第二：在执行Outline Manager（命令如图中）

第三：复制以下命令（如图）

代码（标记1）：

sudo bash -c "$(wget -qO- https://raw.githubusercontent.com/Jigsaw-Code/outline-server/master/src/server_manager/install_scripts/install_server.sh)"

这要说明的是网上很多都在说文中标记1代码，都是这样

wget -qO- https://raw.githubusercontent.com/Jigsaw-Code/outline-server/master/src/server_manager/install_scripts/install_server.sh

或者这样

bash -c "$(wget -qO- https://raw.githubusercontent.com/Jigsaw-Code/outline-server/master/src/server_manager/install_scripts/install_server.sh)"

但是目前最新的Outline Manager版本1.9.0 (1.9.0)命令是标记1的代码

第三：复制标记1命令到阿里云服务器终端后报错一下代码

> Verifying that Docker is installed .......... OK
> Verifying that Docker daemon is running ..... OK
> Setting PUBLIC_HOSTNAME to external IP ...... 
Last error: curl: (7) Failed to connect to ipinfo.io port 443: Connection timed out
curl: (7) Failed to connect to domains.google.com port 443: Connection timed out
Failed to determine the server's IP address.  Try using --hostname <server IP>.

Sorry! Something went wrong. If you can't figure this out, please copy and paste all this output into the Outline Manager screen, and send it to us, to see if we can help you.
Full log: /tmp/outline_logQ6k

翻译过来意思是如下

特别要注意的是

--hostname <server IP>

网上看到的资料是需要修改root用户名，最后发现说必须要修改ifcfg-eth0内的信息，发现只有主网卡信息，没有弹性网卡信息，最后添加了弹性网卡信息后输入一下代码依然报错

sudo bash -c "$(wget -qO- https://raw.githubusercontent.com/Jigsaw-Code/outline-server/master/src/server_manager/install_scripts/install_server.sh)"

请问你们遇到过这样的问题吗？