Self signed SSL certificate warning
In this article I'm going to discuss why you would be receiving a warning or error in your web-browser when trying to access your server via the self signed SSL certificate while using a secure connection.
Self-signed SSL errors
When you are trying to access a service such as WHM on your server, over the SSL (Secure Socket Layer) protocol, the server has to identify itself with a SSL certificate to the web-browser.
In order for web-browsers to trust the certificate that the server has presented, the SSL certificate must be issued by a valid Certificate Authority (CA).
By default the SSL certificate that would be configured on your server would be a self-signed one, essentially meaning that it has not been issued by a CA, but instead your own server has signed the certificate as being valid.
This works perfectly fine for encrypting data, but it will present you with an error or warning in your web-browser when trying to access the secure content. Below are examples of this from popular web-browsers:
Click on Proceed anyway to bypass SSL warning in Chrome.
Click on I Understand the Risks, then click on Add Exception....
Next click on Get Certificate, and finally Confirm Security Exception to bypass SSL warning in FireFox.
Microsoft Internet Explorer
Click on Continue to this website (not recommended) to bypass SSL warning in Internet Explorer.
This warning is simply letting you know that the SSL certificate was self-signed. In the case of accessing your own server this isn't a problem at all, and you can simply tell your web-browser to accept the self-signed SSL certificate and continue.
Where you would typically take caution on these types of errors would be if you were accessing your bank or a credit card's website, as that could be an indication your secure data isn't properly going to the right server.
If you'd like to not have a self-signed SSL certificate error when accessing your server via SSL, you can read our guide on how do I obtain an SSL certificate, as that explains how you could purchase a dedicated SSL certificate that would be issued via a Certificate Authority and not display the same warning.
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