1、将nginx程序包上传至服务器，我这里使用的是nginx-1.21.6.tar.gz
2、解压nginx
tar -zxvf nginx-1.21.6.tar.gz
3、解压后会在当前目录下生成一个nginx-1.21.6目录
4、进入该目录，执行 --with-stream
./configure --prefix=安装路径 --with-stream 标红部分为必加，不加不支持tcp转发
5、运行命令后可能会出现如下错误，这表示你的服务器上没有pcre 和 pcre-devel和zlib-devel这3 个包，通过yum命令进行安装
yum -y install pcre yum -y install pcre-devel yum -y install zlib-devel
6、再次执行第四步中的命令
7、执行命令进行安装
make && make install
8、到这里nginx已经安装好了，接下来进行nginx.conf文件的配置
配置文件路径：/你的安装路径/nginx/conf/nginx.conf
9、编辑配置文件，如下为nginx.conf 默认内容，在修改前请备份该文件
cp nginx.conf nginx_bak.conf
#user nobody;worker_processes 1;#error_log logs/error.log;#error_log logs/error.log notice;#error_log logs/error.log info;#pid logs/nginx.pid;events {wor{er_connections 1024;}}http {include mime.types;default_type application/octet-stream;#log_format main '$remote_addr - $remote_user [$time_local] "$request" '# '$status $body_bytes_sent "$http_referer" '# '"$http_user_agent" "$http_x_forwarded_for"';#access_log logs/access.log main;sendfile on;#tcp_nopushon;"nginx.conf" 117L, 2656C 1,0-1 顶ç«#keepalive_timeout 0;keepalive_timeout 65;#gzip on;server {listen 80;server_name localhost;#charset koi8-r;#access_log logs/host.access.log main;location / {root html;index index.html index.htm;}#error_page 404 /404.html;# redirect server error pages to the static page /50x.html#error_page 500 502 503 504 /50x.html;location = /50x.html {root html;}# proxy the PHP scripts to Apache listening on 127.0.0.1:80##location ~ \.php$ {# proxy_pass http://127.0.0.1;#}# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000##location ~ \.php$ {# root html;# fastcgi_pass 127.0.0.1:9000;# fastcgi_index index.php;# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;# include fastcgi_params;#}# deny access to .htaccess files, if Apache's document root# concurs with nginx's one##location ~ /\.ht {# deny all;#}}# another virtual host using mix of IP-, name-, and port-based configuration##server {# listen 8000;# listen somename:8080;# server_name somename alias another.alias;# location / {# root html;# index index.html index.htm;# }#}# HTTPS server##server {# listen 443 ssl;# server_name localhost;# ssl_certificatecert.pem;# ssl_certificate_key cert.key;# ssl_session_cache shared:SSL:1m;# ssl_session_timeout 5m;# ssl_ciphers HIGH:!aNULL:!MD5;# ssl_prefer_server_ciphers on;# location / {# root html;# index index.html index.htm;# }#}}
10、在配置文件中增加以下内容
stream {--stream部分与http部分平级#这两段实现的是10.170.12.159:19013端口通过本地服务器的22222端口转发出去#其中下面的两处mysqltest可以自己起名，但要保证名称相同upstream mysqltest {server 10.110.111.159:19013;}server {listen 22222;proxy_pass mysqltest;}}
11、增加内容后的nginx.conf明细内容如下，其中红框部分为本次新增内容，我在这里添加了两个如需转发更多端口在stream中继续增加即可，用于进行端口转发(本配置文件内容仅支持端口转发功能)
12、启动nginx
cd /home/collect/nginx/sbin./nginx -c /home/collect/nginx/conf/nginx.conf
至此端口转发已完成，可以使用了
