make ./hello 8080 & telnet 127.0.0.1 8080 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. GET / HTTP/1.0 HTTP/1.0 200 OK Content-type: text/html <!DOCTYPE html> <html> <head> <title>test</title> </head> <body> <h1>Hello, httpd!</h1> <p>This is index.html.</p> </body> </html>Connection closed by foreign host.