How to Install Certbot on CentOS Stream 8 [Let’s Encrypt]

Ramya Santhosh — Fri, 11 Feb 2022 06:45:41 +0000

In 2017, we wrote an article on migrating to Let’s Encrypt from StarSSL and also you’ll see a number of articles written on Let’s Encrypt issues and solutions. Here again, we are writing how to Install the Certbot package which is a script that automatically requests certificates from LetsEncrypt. In...

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How to setup WSO2 with Let’s Encrypt certificate

Ramya Santhosh — Fri, 26 Nov 2021 11:57:43 +0000

Setting up an SSL certificate for WSO2 API Manager is not straightforward, as it requires creating Keystore and adding an SSL certificate to the Keystore. In this article, we will see how to set up WSO2 with Let’s Encrypt certificate. I assume that you already have the Let’s Encrypt certificate...

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DST Root CA X3 Expiry – Invalid Certificate Error on Chrome [Fix]

David Peter — Tue, 05 Oct 2021 12:33:03 +0000

DST Root CA X3 certificate expired on September 30th, 2021 causing many devices on the internet with an Invalid Certificate error, including the websites and services using the Let’s Encrypt certificates. But you know what I was not even aware of this certificate expiry until one of my clients sent...

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Fix SSL_PROTOCOL_ERROR and SSL_ERROR_RX_UNEXPECTED_NEW_SESSION_TICKET [NGINX & LetsEncrypt]

Ramya Santhosh — Wed, 18 Mar 2020 04:14:42 +0000

I had set up my website on NGINX with LetsEncrypt for SSL. All was good until the browser refused to open the site with an error “SSL_ERROR_RX_UNEXPECTED_NEW_SESSION_TICKET” in Firefox and ERR_SSL_PROTOCOL_ERROR” a vague message in Chrome. In case, if you are getting this error, here’s the solution. I’ve used the...

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