No longer able to login to the web GUI using a browser other than IE or Firefox

Hello! It seems opscenter is not configured correctly or the HTTPS settings are not secure enough. Here is the message I get when I try to login with Opera:

Server has a weak ephemeral Diffie-Hellman public key

This error can occur when connecting to a secure (HTTPS) server. It means that the server is trying to set up a secure connection but, due to a disastrous misconfiguration, the connection wouldn't be secure at all! 

In this case the server needs to be fixed. Opera won't use insecure connections in order to protect your privacy.

A quick search on the web points me to a weak key (smaller than 1024bit) being used for the https connections. Where/how can I fix this? The other browsers allow me to connect but I would prefer not using IE or Firefox...

4 Replies

You didn't mention which

You didn't mention which version of OpsCenter you're running but this might apply:

OpsCenter SSL certificate signed by using a weak hash algorithm



This might also help:

 How to replace the default OpsCenter 7.6.x certificate with one using a different encryption algorithm



Thank you, I will look at

Thank you, I will look at those links. We are using


Upgrade to 7.7.  Issues go

Upgrade to 7.7.  Issues go away.


Thank you, it is now fixed

Thank you, it is now fixed with 7.7.