Hi,

I'm using Nginx as reverse proxy, recently upgraded the OpenSSL package on Nginx server, post that application is not working. Getting Bad Gateway and in the log I'm getting the below error. Can someone help me what would be the issue.


nginx version: nginx/1.12.0

openssl-1.0.2k-8.0.1.el7.x86_64

=========
SSL_do_handshake() failed (SSL: error:14082174:SSL routines:ssl3_check_cert_and_algorithm:dh key too small) while SSL handshaking to upstream
=========

Thanks,
SK

I've run into this problem too, and I've done some tests that show it's related to either the server or the client's version of openssl, such as when both my client and server are: OpenSSL version 1.0.2g will trigger this problem, and if one of the clients and servers is not this version, it won't. So either OpenSSL version or nginx. Finally, I chose haproxy.