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This article will explain in detail how Nginx reverse proxy learning is, the quality of the article content is high, so Xiaobian shares it with you as a reference, I hope you have a certain understanding of related knowledge after reading this article.

1. Reverse proxy preparation 1. Install Tomcat in Linux system

Extract tomcat to/usr/src. Jdk environment is required for startup. No jdk environment installed, I centos7 comes with jdk1.8.

2. start Tomcat

Enter tomcat bin directory, there is a startup.sh file.

./ startup.sh Start tomcat server

3. Open access ports

View currently open port numbers

firewall-cmd --list-all

Set open port numbers

firewall-cmd --add-port=80/tcp --permanentfirewall-cmd --add-port=8080/tcp --permanent

Restart firewall

firewall-cmd --reload 4. Test access tomcat

http://192.168.1.173:8080/

Since then, the preparatory work has been completed!

II. Reverse proxy case (I) 1. Realize the effect

Open the browser, enter www.123.com in the browser address bar, jump to the tomcat page of linux system

2. specific configuration

Step 1: Add to the local/etc/hosts file

Step 2: Configure the request forwarding in nginx (reverse proxy configuration)

cd /usr/local/nginx/conf

vim nginx.conf

Add something to modify

3. test

Visit www.123.com

Access tomcat by accessing nginx ip, success!!!

II. Reverse proxy case (II) to achieve results

Use nginx reverse proxy to jump to services on different ports according to the access path. The nginx listening port is 9001.

Visit 192.168.1.173/edu/ to jump directly to 192.168.1.173:8080

Visit 192.168.1.173:9001/vod/ to jump directly to 192.168.1.173:8081

1. preparations

(1) Prepare two tomcat servers, one port 8080 and one port 8081

(2) Create two folders, put them into tomcat compressed package, extract them, and then modify the server.xml file in conf of tomcat to change the port to 8081.

(3) Create edu and vod folders under webapps file respectively, and create a.html test page in the folder to display port number.

2. specific configuration

(1) Find the nginx configuration file and configure the reverse proxy.

(2) Port number 9001 8080 8081 open to external access

location instruction

This directive is used to match URLs

The syntax is as follows:

location [ = | ~ | ~* | ^~] uri {}

1.=: Before uri without regular expression, request string and uri are strictly matched. If they match,

If successful, stop searching downwards and process the request immediately.

2,~: Used to indicate that uri contains regular expressions and is case-sensitive.

3.~*: Used to indicate that uri contains regular expressions and is case-insensitive.

4.^~: Before using uri without regular expression, Nginx server is required to find the identifier uri and request word.

After the location with the highest string matching degree, immediately use this location to process the request instead of using location

The regular uri in the block matches the request string.

Note: If uri contains a regular expression, it must have a ~ or ~ identifier. *

final test

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