SSL/TLS Certificate Knowledgebase

Knowledge hub of SSL Guides, Manuals, and Resources

Certera.com Knowledge base is a hub of different online resources, helping newbies and professionals understand digital certificates thoroughly. Whether you only want to clear the basics, understand the exact definition, or want to know the purchase, installation, renewal, and management procedure, we provide them all in a single place. Certera got an accurate answer/solution directly from industry experts for every certificate query.

Certera's Knowledgebase

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How to Sign a Document in Adobe Acrobat?

Digital signatures have become vital to secure document workflows, whether for contracts, compliance records, or business approvals. Adobe Acrobat makes it easy to digitally sign PDFs using trusted Document Signing Certificates from DigiCert. Here is how to digitally sign a document in Adobe Acrobat, create a Digital ID, and add…
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How to Fix PR_END_OF_FILE_ERROR in Firefox?

Mozilla Firefox is one of the most used browsers worldwide. As of 2024, more than 362 million users are using it to browse the Internet. The reason for doing so is quite simple – Mozilla Firefox is not only safe to use, but it also keeps your data and private…
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How to Clear SSL State in Your Browser?

As we penetrate deeper into the twenty-first century, the confidentiality of the Internet becomes an increasingly pertinent issue, as does the use of web browsers in making the experience secure and encrypted. Google Chrome, a top browser in terms of usage, opts for the SSL protocol to achieve secure connections…
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How to Generate a CSR for Wildcard SSL and Install a Certificate?

Introduction Creating CSR to a Wildcard SSL Certificate is one of the steps if you would want to protect your domain and its subdomain levels. CSR stands for Certificate Signing Request, which is an encoded text formatted block sent to the Certificate Authority for an SSL certificate. This article will…
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How to Fix the ERR_CONNECTION_RESET Error?

What is the ERR_CONNECTION_RESET Error? The “ERR_CONNECTION_RESET” is among the common problems that may take place when a browser fails to connect to a specific site you want to access. In your browser, rather than opening the page, an error message indicating that connection has been reset appears. This can…
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How to Create a CSR on Synology NAS?

What is a Certificate Signing Request? A CSR is an encoded text or message that you send to a certificate authority when you want to get a digital certificate such as SSL/TLS cert to shield your site. The certificate authority needs this encoded text to verify that you are –…
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How to Install SSL Certificate on Synology NAS?

Introduction Were you searching the web for the steps to install an SSL certificate on Synology NAS? If yes, we will learn “How to install an SSL certificate on Synology NAS” through simple steps. But, before we start with the installation steps, there is a prerequisite that needs to be…
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How to Install an SSL Certificate on JBOSS?

Introduction Want to install an SSL certificate on JBOSS? If yes, then you have landed on the right article. In this piece, we will explain – how to accomplish the same with the help of simple and straightforward steps. Before moving forward, don’t forget to Purchase an SSL Certificate from…
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How to Fix unable_to_get_issuer_cert_locally Error?

While using Node JS, have you been greeted by the unable_to_get_issuer_cert_locally warning message? If the answer is – Yes, then there is no need to tell you how troublesome and frustrating it is. If the error is not fixed, then it can give rise to other connection error which can…
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How to Fix the “Self-Signed Certificate in Certificate Chain” Error?

What is Self-Signed Certificate in Certificate Chain Error? While handling SSL/TLS certificates, errors are most likely to take place. While this error is most likely to be seen by administrators, developers, and users alike, it is the “Self-Signed Certificate in Certificate Chain” error. This error occurs when a self-signed certificate…