Tag: Certificate

Letsencrypt Unable to find a virtual host listening on port 80

I installed Goautodial where access via HTTPS was configured “out-of-the-box” with self-signed certificate. HTTP access was configured through like default website in Apache without using VirtualHost directive. I tried to get a certificate from Letsencrypt and got the following error: Unable to find a virtual host listening on port 80 which is currently needed for …

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Polycom Cannot download certificate because domain is not accessible

Polycom-cannot-validate-and-install-certificate

On first sign in Polycom phone cannot download certificate because domain is not accessible and displays the following messages:

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How To Create SSL Certificate for Apache on CentOS 7

An SSL certificate is an electronic ‘document’ that is used to bind together a public security key and a website’s identity information (such as name, location, etc.) by means of a digital signature. The ‘document’ is issued by a certificate provider such as GlobalSign, Verisign, GoDaddy, Comodo, Thawte, and others. In this article I will …

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