CentOS nginx server_name Configuring domain name access rules

Tag: Name error Not today configuration rule RMI Term server

When configuring server_name today, I want to disable some domain names, which should be the domain name I want to configure with another server

SERVER_NAME "~^ ((\w*[^w]{1}\w*) |w{1,2}) \.hello\.com$";

is to not allow www.hello.com access to this configuration

But always prompt starting Nginx:nginx: [Emerg] directive "SERVER_NAME" is not terminated by ";"

found that the original {} caused the error, only need to add a double quotation mark to the regular.

In addition, when the CentOS data backup, wrote the sh script, also, if there is no double quotation marks will also appear this problem

Tar zcvpf "/bak/boot. ' Date +%y%m%d%h%m '. tar.gz" "/boot/";

CentOS nginx server_name Configuring domain name access rules