我正在尝试使用FASTCgi运行Nginx来通过C应用程序后端处理请求。
我正在使用本教程:http://www.kutukupret.com/2010/08/20/nginx-fastcgi-hello-world-in-c/
我的Nginx配置文件:
server
{
listen 80;
listen [::]:80 default ipv6only=on;
server_name localhost;
location /
{
fastcgi_pass 127.0.0.1:8000;
fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;
fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;
}
}
我的C文件“ hello.c”:
#include <fcgi_stdio.h>
int main( int argc, char *argv[] )
{
while( FCGI_Accept() >= 0 ) {
printf( "Content-Type: text/plainnn" );
printf( "Hello world in Cn" );
}
return 0;
}
我使用FastCGI开发套件编译C文件,并生成一个hello二进制文件。
最后运行此行:spawn-fcgi -a 127.0.0.1 -p 8000 -n /var/www/example.com/bin/hello
但是当我放入浏览器http://localhost
时,它会抛出“ 502错误的网关”。
有人可以给我带来些光吗?
printf( "Content-Type: text/plainnn" );
应该是-
printf( "Content-Type: text/plain\r\n\r\n" );
注意\r\n\r\n
这是HTTP标头和HTTP正文之间的强制性分隔符。
sudo tail -f /var/log/nginx/error.log
我遇到了同样的错误,但是使用的是C ++服务器,该服务器使用CppCMS库和unix套接字与nginx进行通信。从错误日志中,我可以看到套接字文件的文件权限存在问题:
2014/05/28 14:52:01 [crit] 1818#0: *172 connect() to unix:/tmp/fcgi-socket failed (13: Permission denied) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /server HTTP/1.1", upstream: "fastcgi://unix:/tmp/fcgi-socket:", host: "localhost:8080"
仅将它们设置为777就为我解决了这个问题。
fastcgi_pass 127.0.0.1:8000;
您可以使用以下命令来验证您的php5-fpm是否正在该端口上运行
grep -Hr "8000" /etc/php5/fpm/pool.d
对于在8000上安装php5-fpm,请打开以下文件并更改侦听8000端口
vim etc/php5/fpm/pool.d/www.conf
现在搜索收听并用下一行替换它
listen = 127.0.0.1:8000
保存文件并重新启动php5-fpm
location / {
include fastcgi_params;
fastcgi_pass localhost:8000;
}