修改nginx的http响应头server，以及真实ip模块、ssl模块、压缩模块的安装

修改nginx的http响应头server字段
修改源码 src/http/ngx_http_header_filter_module.c
修改前：
static u_char ngx_http_server_string[] = “Server: nginx” CRLF;
static u_char ngx_http_server_full_string[] = “Server: ” NGINX_VER CRLF;
static u_char ngx_http_server_build_string[] = “Server: ” NGINX_VER CRLF CRLF;
修改后：
static u_char ngx_http_server_string[] = “Server: X-Web” CRLF;
static u_char ngx_http_server_full_string[] = “Server: X-Web” CRLF;
static u_char ngx_http_server_build_string[] = “Server: X-Web” CRLF;

nginx安装https模块时，with-openssl 为openssl得源码路径，不是安装之后的路径
./configure –prefix=/opt/local/nginx –sbin-path=/opt/local/nginx/sbin/nginx –pid-path=/opt/logs/nginx/nginx.pid –error-log-path=/opt/logs/nginx/logs/error.log –http-log-path=/opt/logs/nginx/logs/access.log –with-http_v2_module –with-http_ssl_module –with-http_sub_module –with-http_stub_status_module –with-http_gzip_static_module –with-http_gunzip_module –with-stream_ssl_module –with-stream_realip_module –with-stream_ssl_preread_module –with-http_realip_module –with-openssl=/opt/soft/openssl-3.0.3

其中http_realip_module 为真实ip模块，http_gzip_static_module 为压缩模块

真实ip模块配置如下：

real_ip_header X-Forwarded-For;
set_real_ip_from x.x.x.x;

其中x.x.x.x 为来源ip，比如waf的ip