Starting nginx: nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol)
解决办法：
vim /etc/nginx/conf.d/
default.conf
listen 80 default_server;
listen [::]:
80 default_server;
修改为:
listen 80;
#listen [::]:80 default_server;
重启nginx
sudo service nginx restart
参考资料：
1、nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol) https://blog.csdn.net/reblue520/article/details/52799500
