Nginx prevents domain names from being maliciously pointed to, and nginx prevents domain names from pointing

Nginx prevents domain names from being maliciously pointed to, and nginx prevents domain names from pointing

Today, I encountered a situation where the domain name was maliciously pointed to. A junk domain name pointed to the server's ip address and was complained. I found it online. It turns out that nginx has a default empty Host Header problem. The virtual host in nginx's default configuration allows users to access through IP addresses or through unspecified domain names, this will be maliciously pointed.

Edit the conf/nginx. conf file and add or modify the default settings.

Server { Listen 80 default; Server_name _; Return 403; }Restart nginx and sbin/nginx-s reload after modification. After modifying the configuration file, you 'd better test whether there are any errors. sbin/nginx-t, if OK is displayed, you can change the return value to rewrite if you want to transfer the traffic to your website.