SSL Certificate suddently giving error "ERR_CERT_DATE_INVALID". Expired?

I’m stuck here, because someone else set up Digital Ocean and the SSL certificates for me, and they are now no longer around.

Digital Ocean is complicated compared to what I’m used to, but I’m trying to hobble through this because my site is throwing up a security warning due to this SSL error. I’m not sure how to answer the distributions question above, or how to check that.

Can someone help me get this sorted out?

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Hi there,

Yes an ERR_CERT_DATE_INVALID error that a browser shows means your SSL certificate has expired. It’s likely that the previous user purchased an SSL certificate from a certificate authority such as GoDaddy. Today we have an excellent and free SSL tool called Let’s Encrypt which can be used to secure your website. Digital Ocean has an excellent tutorial on how to setup Let’s Encrypt on their web servers.

Here’s a link to a tutorial on how to set it up using the Ubuntu 14.04 distro but tutorials also exists for other linux distros as well. I recommend to take some time and read through the whole tutorial and make sure you understand the process. The link I sent you assumes you’re running NGINX but Let’s Encrypt is also compatible with other web servers such as Node and Apache. If you can give me some more information on your specific setup, I’d be happy to send you a more specific tutorial.