Sunnyztj

1. Install WP-Mail-SMTP Plugins
2. Setup WP-Mail-SMTP
3. Update google account security level. 强制允许所有用户访问安全性较低的应用（不推荐）
   (https://admin.google.com/AdminHome?pli=1&fral=1#ServiceSettings/notab=1&service=securitysetting&subtab=lesssecureappsaccess)

Sunnyztj

1. Install WP-Mail-SMTP Plugins
2. Setup WP-Mail-SMTP
3. Update google account security level. 
   (https://admin.google.com/AdminHome?pli=1&fral=1#ServiceSettings/notab=1&service=securitysetting&subtab=lesssecureappsaccess)

Sunnyztj

1. Install WP-Mail-SMTP Plugins
2. Setup WP-Mail-SMTP
3. Update google account security level. 
   (https://admin.google.com/AdminHome?pli=1&fral=1#ServiceSettings/notab=1&service=securitysetting&subtab=lesssecureappsaccess)

Sunnyztj

https://www.digitalocean.com/community/tutorials/how-to-protect-wordpress-from-xml-rpc-attacks-on-ubuntu-14-04

Sunnyztj

https://www.luciancancescu.com/blog/2015/03/how-to-integrate-fontawesome-in-your-ios-project/

Sunnyztj

安装ubuntu 中文字体 : https://wiki.ubuntu.com.cn/%E5%AD%97%E4%BD%93

Sunnyztj

1.routes.rb
root to: 'application#redirect_to_home_index'
get '/:locale', to: "home#index", as: 'home'


2. application_controller.rb
def redirect_to_home_index
  redirect_to home_path
end

Sunnyztj

Block IP addresses
Using iptables

Most system administrators will already be familiar with iptables. It is around for quite a while, and by default enabled within the Linux kernel. Within this article we are going to configure iptables to block one or multiple IP addresses. This may come in handy when you get repeating port scans, or see failed login attempts in your log files.

Check existing iptables configuration
First step is to validate existing rules.

iptables -L
Manually blocking a single IP address

Sunnyztj

http://josephndungu.com/tutorials/gmail-like-chat-application-in-ruby-on-rails

Sunnyztj

https://www.digitalocean.com/community/tutorials/how-to-optimize-apache-web-server-performance
https://www.digitalocean.com/community/questions/apache-2-4-with-php5-fpm