{"id":4043,"date":"2024-11-21T09:45:04","date_gmt":"2024-11-21T09:45:04","guid":{"rendered":"https:\/\/cheapsslweb.com\/resources\/?p=4043"},"modified":"2025-12-24T07:17:49","modified_gmt":"2025-12-24T07:17:49","slug":"how-to-generate-a-csr-in-centos","status":"publish","type":"post","link":"https:\/\/cheapsslweb.com\/resources\/how-to-generate-a-csr-in-centos","title":{"rendered":"How to Generate a CSR in Linux CentOS?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This tutorial will help you to understand how to generate a CSR on CentOS 7 and 6 machines step by step. This CSR is required when applying for an SSL certificate from Certificate Authority or CA. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Follow Quick Steps for CSR Generation in CentOS:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Log into Your Server Using SSH<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Before one is able to generate a CSR, he has to open the server. This is accomplished by the use of <a href=\"https:\/\/cheapsslweb.com\/blog\/an-ultimate-guide-on-secure-shell-protocol\/\">Secure Shell (SSH)<\/a>; this is a protocol for accessing a command line interface through a network.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Open your terminal:<\/strong> From the command prompt of an operating system on your local computer, <strong>open the terminal<\/strong>.<\/li>\n\n\n\n<li><strong>Connect to your server:<\/strong> Typing the following command, username with the actual server username and <strong>server_ip<\/strong> with the actual IP of the server.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh username@server_ip<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Authenticate:<\/strong> Type in your password if you are asked for the username and password to log into the system.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Step 2: Create the Private Key and CSR Files<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When connected to the server, you have to <a href=\"https:\/\/cheapsslweb.com\/resources\/how-to-generate-private-key-and-csr-using-cpanel\">generate a private key and CSR<\/a>. The certificate will be held on the server, and it is recommended that the private key be secured in a centralized point, and the CSR is transferred to the CA for validation.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Generate the private key and CSR:<\/strong> At the prompt, enter the following command, substituting mydomain with your domain name. For example, if your domain name is example.com, you should use example.key and example.csr.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code><em>openssl req -new -newkey rsa:2048 -nodes -keyout mydomain.key -out mydomain.csr<\/em><\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Provide details:<\/strong> Some details that will be required of your organization will be displayed to you. All this information will be incorporated into your CSR.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Step 3: Submit Details About Your Organization<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When prompted, enter the following details about your organization:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Country Name:<\/strong> Use the two-letter abbreviation for the country in which your organization is incorporated\/officially situated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instanc<\/strong>: <em>US<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">State or Province Name: Please enter the name of the state or province where your organization is registered, including the full name. Do not abbreviate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instance<\/strong>: <em>California<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Locality Name (City):<\/strong> Please provide the name of the full city you operate from in your organization.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instance<\/strong>: <em>San Francisco<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Organization Name (Company): If you are applying for a Business Validation (BV) or Extended Validation (EV) certificate, fill in your company\u2019s legal name here. If it is for a Domain Validation (DV) certificate only, enter your full name.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>For instance<\/strong><\/em>: <em>My Company Inc<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Organizational Unit Name (Department): If available, add the name of the organization doing business as (DBA) or the department that is in charge of the SSL certificates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instance<\/strong>: <em>IT<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common Name (Domain Name):<\/strong> To do that, type the fully qualified domain name (FQDN) you need to be protected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instance<\/strong>:<em> cheapsslweb.com<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note for Wildcard Certificates:<\/strong> If you are applying for a <a href=\"https:\/\/cheapsslweb.com\/ssl-types\/cheap-wildcard-ssl-certificates\">Wildcard SSL certificate<\/a> then you have to prefix your domain name with an asterisk. This is not https:\/\/ or any other character. Enter the exact address without https or any other characters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Email Address:<\/strong> Provide a valid email address as a way of being contacted for the given domain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For instance<\/strong>: <em>support@cheapsslweb.com<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Password<\/strong>: This field is optional. You may further secure your SSL certificate with a password, or you can leave this field blank.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Step 4: Locate Your CSR and Private Key Files<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The form completion will then create your CSR and private key files, and place them in the directory that you began the command in.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>List the files:<\/strong> In case you want to list down the files that you have in your directory, then you can run the ls command.<\/li>\n\n\n\n<li><strong>Identify the files:<\/strong> You should now have two new files: mydomain.csr and mydomain.key.<\/li>\n\n\n\n<li><strong>The .csr file:<\/strong> This file stores the Certificate Signing Request which needs to be provided to the CA at the time of ordering an SSL Certificate.<\/li>\n\n\n\n<li><strong>The .key file:<\/strong> This file holds your private key and it\u2019s important that it is safely guarded and not be disclosed to any other person.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 5: Submit the CSR to Your CA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Once you have a CSR file, you can then approach a Certification Authority of your preference to <a href=\"https:\/\/cheapsslweb.com\/buy-ssl-certificates\">acquire an SSL certificate<\/a>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Access the CA&#8217;s website:<\/strong> Visit the website of your selected CA and navigate to the page where you can begin an SSL certificate request.<\/li>\n\n\n\n<li><strong>Submit the CSR:<\/strong> As such, in response to the prompt that asks to insert the contents of the mydomain file into the post, we have the following: csr file into the CSR text box. To edit the CSR file, you can use text editors such as the nano text editor or vim text editor.<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>nano mydomain.csr<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Complete the form:<\/strong> Provide any additional information required by the CA and proceed with paying for the item.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><a><\/a>Step 6: Install Your SSL Certificate<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">After confirmation of the CSR by your CA and then issuance of the SSL certificate, you can go ahead and <a href=\"https:\/\/cheapsslweb.com\/resources\/how-to-install-an-ssl-certificate-on-centos-7\">install the SSL certificate on your CentOS server<\/a>. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">By choosing <a href=\"https:\/\/cheapsslweb.com\/\">CheapSSLWeb<\/a>, you are opting for a trusted provider dedicated to offering quality SSL certificates at the best prices. Join thousands of satisfied customers who have secured their websites with us.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This tutorial will help you to understand how to generate a CSR on CentOS 7 and 6 machines step by step. This CSR is required when applying for an SSL certificate from Certificate Authority or CA. Follow Quick Steps for CSR Generation in CentOS: Step 1: Log into Your Server Using SSH Before one is<span class=\"morelink d-block mt-3\"><a href=\"https:\/\/cheapsslweb.com\/resources\/how-to-generate-a-csr-in-centos\">Read More<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":4044,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85],"tags":[279,280],"class_list":["post-4043","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ssl-installation-guides","tag-csr-generation-on-centos","tag-generate-csr-on-centos","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Generate a CSR in CentOS?<\/title>\n<meta name=\"description\" content=\"Follow Step By Step Guide to Create CSR ( Certificate Signing Request) in CentOS Server. 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