Hiding server IP addresses is a common online security measure that increases server security and privacy protection. Here are a few common ways to hide server IP addresses:

1. Use reverse proxy:

By configuring the reverse proxy server, the user's request is first sent to the reverse proxy server, and then forwarded to the actual server by the reverse proxy server. This way, the IP address of the actual server will be hidden and the user will only see the IP address of the reverse proxy server.

2. Use a virtual private server (VPS) or cloud server:

Use VPS or cloud server as the middle layer, send the user's request to the VPS or cloud server first, and then forward them to the actual server. This way, the IP address of the actual server can be protected.

3. Using CDN (Content Distribution Network):

CDN is a distributed network architecture that caches website content on nodes around the world to achieve nearby access and speed up the transmission of website content. When a user visits a website, the request is processed by a CDN node without connecting directly to the actual server, thereby hiding the server's IP address.

4. Use firewall and security policies:

Configure firewalls and other security policies to restrict direct access to the server and allow access only to specific IP addresses or ranges of IP addresses. This can effectively prevent unauthorized access and attacks, and increase server security.

5. Using third-party services:

There are some third-party services that provide IP hiding and anonymous proxy functions, such as  (Virtual Private Network) or proxy services. By using these services, a user's request is forwarded through a proxy server, hiding the actual server's IP address.

Note that while these methods can help hide your server's IP address, they don't completely eliminate the risk of being discovered. Hackers and attackers may use various means to identify the real IP address of a server. Therefore, in addition to hiding your IP address, you should take other security measures to keep your servers and applications safe.