创建cache目录

mkdir -pv /var/cache/nginx/fastcgi_cache

修改/etc/fstab文件

tmpfs     /var/cache/nginx/fastcgi_cache  tmpfs defaults,size=200m,context=system_u:object_r:httpd_cache_t:s0

挂载文件

mount -t ramfs none /var/cache/nginx/fastcgi_cache