干货：基于nginx的tcp反向代理案例

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# Centos 7.5 
$ yum -y update

 参考 http://nginx.org/en/linux_packages.html#stable
$ vi /etc/yum.repos.d/nginx.repo
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1

$yum -y install nginx

$nginx -V
nginx version: nginx/1.14.0
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'

$ vi /etc/nginx/nginx.conf
user nginx;
worker_processes auto;
 
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
 
events {worker_connections 1024;}
 
stream {log_format proxy '$remote_addr [$time_local]'
'$protocol $status $bytes_sent $bytes_received'
'$session_time"$upstream_addr"''"$upstream_bytes_sent""$upstream_bytes_received" "$upstream_connect_time"';
 
access_log /var/log/nginx/tcp-access.log proxy;
open_log_file_cache off;
 
include /etc/nginx/conf.d/*.stream;
}
 
http {
include /etc/nginx/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 /var/log/nginx/access.log main;
 
sendfile on;
#tcp_nopush on;
 
keepalive_timeout 65;

# 关闭版本显示

server_tokens off;

#gzip 压缩传输

gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain application/x-javascripttext/css application/xml;
gzip_vary on;

# 配置代理参数

proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_connect_timeout 90;
proxy_read_timeout 90;
proxy_send_timeout 90;
proxy_buffer_size 4k;

# 缓存配置

proxy_temp_file_write_size 264k;
proxy_temp_path /var/cache/nginx/nginx_temp;
proxy_cache_path /var/cache/nginx/nginx_cache levels=1:2 keys_zone=cache_one:200m inactive=5d max_size=400m;
proxy_ignore_headers X-Accel-Expires Expires Cache-Control Set-Cookie;
 
include /etc/nginx/conf.d/*.conf;
}