SSL로 백엔드 애플리케이션 보호Korean version of this document is available
SSL によるバックエンド アプリケーションの保護Japanese version of this document is available
使用 SSL 保护后端应用程序Chinese Simplified version of this document is available
The target audience for this blog is IT developers.
The Transport Layer Security (TLS) protocol is the industry standard for securing communications between clients and servers. TLS provides encryption and authentication to protect data in transit from being intercepted and tampered with.
When TLS is used to secure communications between a client and a server, it is known as SSL (Secure Sockets Layer). SSL is the most common form of TLS and is supported by all major browsers.
Backend applications are often the target of attacks due to the sensitive data they process and store. In order to protect backend applications from attack, it is essential to secure communications between the application and its clients using SSL.
There are two primary ways to configure SSL for a backend application:
Use a reverse proxy server that terminates SSL connections and forwards traffic to the application server over a secure connection.
Configure the application server to terminate SSL connections.
Both approaches have their advantages and disadvantages, which will be discussed in more detail below.
A reverse proxy server is a server that sits in front of an application server and handles all incoming traffic. The reverse proxy server can be configured to terminate SSL connections and forward traffic to the application server over a secure connection.
The advantage of this approach is that it offloads the work of SSL termination from the application server. This can be important for performance, as SSL termination is a CPU-intensive task.
The disadvantage of this approach is that it adds an additional point of failure to the system. If the reverse proxy server goes down, the entire system will be unavailable.
The other approach is to configure the application server to terminate SSL connections. The advantage of this approach is that it eliminates the need for a separate reverse proxy server.
The disadvantage of this approach is that it increases the load on the application server, as SSL termination is a CPU-intensive task.
There are two primary ways to configure SSL for a backend application:
Use a reverse proxy server that terminates SSL connections and forwards traffic to the application server over a secure connection.
Configure the application server to terminate SSL connections.
Both approaches have their advantages and disadvantages, which should be considered when choosing the best approach for a particular application.