97: Address family not supported by protocol

启动报错
nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol)

解决办法：

vim /etc/nginx/conf.d/default.conf
将
listen       80 default_server;
listen       [::]:80 default_server;


改为：
listen       80;
#listen       [::]:80 default_server;