![]() ![]() The CSR will be saved in the current working directory. $ openssl req -new -key ubuntu_server.key -out ubuntu_server.csrĭuring the process of generating a CSR, you would be prompted to provide some information that will be associated with your certificate signing request. Note that you would need to specify the correct name of the private key which you generated earlier. Next, generate a Certificate Signing Request ( CSR) with the following command. Your private key will be saved in the current working directory. You can use anything in place of ubuntu_server. Generate OpenSSL Private Keyįirstly, run the command below to generate and save your private key which will be used to sign the SSL certificate. Once you have confirmed that the openssl tool is installed, you are now ready to generate your self-signed certificate as follows. Generate Self-Signed SSL Certificates using OpenSSL If OpenSSL not installed, you can run the following command to install OpenSSL in Linux. You should see an output with OpenSSL version info similar to what is shown in the figure below. OpenSSL comes preinstalled on major Linux distributions and you can confirm that OpenSSL is installed on your Linux machine using the following command. OpenSSL is an open-source software library used to implement secure communications on the Internet. ![]() This tutorial describes how to generate a self-signed SSL certificate by using OpenSSL in Linux. However, you could obtain an SSL certificate without going through a third-party certificate authority - this is what is referred to as a self-signed certificate. Let’s Encrypt, Comodo, Verisign) to provide authentication and encryption on the internet. Ideally, SSL certificates are issued by publicly trusted certificate authorities (e.g. ![]()
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