id summary reporter owner description type status priority milestone component version resolution keywords cc uname nginx_version 2173 Nginx simple proxy set-up returns 400 (Bad Request) Aniruddha Gore "**Context:** I have my client application running on a machine (A) that does not have internet connectivity. It, however, can connect to another machine (B) that has full network connectivity. I intend to set-up nginx as a simple proxy on B such that the client app on A can make HTTPS requests by setting web proxy on them (B's ip address and port). **Problem:** All requests fail with 400 with following in error.log: *1 client sent invalid request while reading client request line, client: ###.###.#.##, server: , request: ""CONNECT my.service.url.com:443 HTTP/1.1"" **Config:** This is how nginx.config looks like: worker_processes 1; error_log logs/error.log info; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; server { listen 8080; location / { proxy_pass https://my.service.url.com:443; } } } **Questions:** I am not sure why requests keep failing. I am new to the world of proxy so any help in the right direction is really appreciated. I suspect this is happening because I did not understand the config correctly, or, something to do with the calls being HTTP**S**." task closed minor other invalid N/A "nginx version: nginx/1.20.0 built by cl 16.00.40219.01 for 80x86 built with OpenSSL 1.1.1k 25 Mar 2021 TLS SNI support enabled configure arguments: --with-cc=cl --builddir=objs.msvc8 --with-debug --prefix= --conf-path=conf/nginx.conf --pid-path=logs/nginx.pid --http-log-path=logs/access.log --error-log-path=logs/error.log --sbin-path=nginx.exe --http-client-body-temp-path=temp/client_body_temp --http-proxy-temp-path=temp/proxy_temp --http-fastcgi-temp-path=temp/fastcgi_temp --http-scgi-temp-path=temp/scgi_temp --http-uwsgi-temp-path=temp/uwsgi_temp --with-cc-opt=-DFD_SETSIZE=1024 --with-pcre=objs.msvc8/lib/pcre-8.44 --with-zlib=objs.msvc8/lib/zlib-1.2.11 --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_stub_status_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_auth_request_module --with-http_random_index_module --with-http_secure_link_module --with-http_slice_module --with-mail --with-stream --with-openssl=objs.msvc8/lib/openssl-1.1.1k --with-openssl-opt='no-asm no-tests -D_WIN32_WINNT=0x0501' --with-http_ssl_module --with-mail_ssl_module --with-stream_ssl_module"