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Howto: Linux Lighttpd SSL (Secure Server Layer) Https Configuration And Installation

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SSL is cryptographic protocol, which provides secure communications on the Internet for email, web etc.

An SSL certificate is a digital certificate that authenticates the identity of a Web site and encrypts information that is sent to the server using Secure Sockets Layer (SSL) technology. Encryption is the process of scrambling data into an undecipherable format that can only be returned to a readable format with the proper decryption key.

SSL is good if you run ecommerce site or accept payments via CC. It is a good choice to use SSL for user login or registration pages etc.

To purchase a digital certificate, you must first generate and submit a Certificate Signing Request (CSR) to the Certification Authority (CA). The CSR contains your certificate-application information, including your public key. The CSR is generated (using openssl command) with your web server software, which will also create your public/private key pair used for encrypting and decrypting secure transactions.
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