nginx 4层代理(初级版)
Nginx从1.9.0版本开始,新增加了一个stream模块,用来实现四层协议的转发、代理或者负载均衡
本笔记使用的 Nginx 1.16.1 软件包动态加载了 stream 模块。不同安装包的模块配置需要分别检查。
http://nginx.org/en/docs/stream/ngx_stream_core_module.html
暂不需要编译源码
http://nginx.org/en/download.html
遇到问题:以下都是环境上缺少相关的依赖,安装即可
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./configure: error: the HTTP XSLT module requires the libxml2/libxslt
yum install libxslt-devel -y
./configure: error: the HTTP image filter module requires the GD library.
yum install gd-devel -y
./configure: error: perl module ExtUtils::Embed is required
yum -y install perl-devel perl-ExtUtils-Embed
./configure: error: the GeoIP module requires the GeoIP library.
yum -y install GeoIP GeoIP-devel GeoIP-data
./configure: error: the Google perftools module requires the Google perftools
yum install gperftools -y
./configure: error: SSL modules require the OpenSSL library.
yum -y install openssl openssl-devel
checking for --with-ld-opt="-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E" ... not found
./configure: error: the invalid value in --with-ld-opt="-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E"
yum install redhat-rpm-config -y
./configure: error: perl module ExtUtils::Embed is required
yum -y install perl-devel perl-ExtUtils-Embed
在执行make时候的报错:
/root/nginx-auth-ldap/ngx_http_auth_ldap_module.c:33:18: fatal error: ldap.h: No such file or directory
#include <ldap.h>
yum install -y openldap-devel
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配置文件样例
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# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
stream {
upstream tcp_proxy {
hash $remote_addr consistent;
server 192.0.2.10:30400 max_fails=3 fail_timeout=30s;
#server 192.0.2.11:30400 max_fails=3 fail_timeout=30s;
}
server {
listen 443;
proxy_connect_timeout 1s;
proxy_timeout 3s;
proxy_pass tcp_proxy;
}
}
http {
log_format main '$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;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
server {
listen 80 default_server;
server_name _;
root /usr/share/nginx/html;
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
location / {
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
}
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nginx yum安装1.16 配置参数
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nginx version: nginx/1.16.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/share/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 --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-stream_ssl_preread_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_stub_status_module --with-http_perl_module=dynamic --with-http_auth_request_module --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic' --with-ld-opt='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E'
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有两个模块能达到效果:
- ngx_stream_proxy_module
- ngx_stream_core_module