{"id":20659,"date":"2016-11-02T08:47:39","date_gmt":"2016-11-02T13:47:39","guid":{"rendered":"https:\/\/www.rosehosting.com\/blog\/?p=20659"},"modified":"2022-06-03T03:42:33","modified_gmt":"2022-06-03T08:42:33","slug":"generate-password-linux-command-line","status":"publish","type":"post","link":"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/","title":{"rendered":"Generate a random password from the command line in Linux"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><p><img decoding=\"async\" class=\"alignnone size-full wp-image-26017\" src=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux.jpg\" alt=\"Generate a random password from the command line in Linux\" width=\"1200\" height=\"600\" srcset=\"https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux.jpg 1200w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-150x75.jpg 150w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-300x150.jpg 300w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-768x384.jpg 768w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-1024x512.jpg 1024w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-860x430.jpg 860w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-680x340.jpg 680w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-500x250.jpg 500w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-400x200.jpg 400w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-200x100.jpg 200w, https:\/\/www.rosehosting.com\/blog\/wp-content\/uploads\/2016\/11\/generate-a-random-password-from-the-command-line-in-Linux-50x25.jpg 50w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>We&#8217;ll show you, How to generate a strong password from the command line in Linux. Having a strong password in Linux, is the most important thing you can do to protect your account or server and to keep your data secure. Common thinking is that a strong password should be comprised of at least 14 characters, including lowercase and uppercase alphabetic characters, numbers and symbols and should never be based on a dictionary word. Using a long password is much more secure that using a short one, the longer the password the harder it is to guess. In this post, we will take a look at a several different ways to generate a strong password using the Linux command line.<\/p>\n<p><!--more--><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69d348f7bc71c\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69d348f7bc71c\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/#1-Generate-a-strong-password-with-openssl\" >1. Generate a strong password with openssl<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/#2-Generate-a-strong-password-with-urandom\" >2. Generate a strong password with urandom<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/#3-Generate-a-strong-password-with-pwgen\" >3. Generate a strong password with pwgen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/#4-Generate-a-strong-password-with-gpg\" >4. Generate a strong password with gpg<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1-Generate-a-strong-password-with-openssl\"><\/span>1. Generate a strong password with openssl<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This method uses the openssl rand function and it will generate 14 characters random string:<\/p>\n<pre>openssl rand -base64 14<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"2-Generate-a-strong-password-with-urandom\"><\/span>2. Generate a strong password with urandom<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In this method we will filter the <code>\/dev\/urandom<\/code> output with <code>tr<\/code> to delete unwanted characters and print the first 14 characters:<\/p>\n<pre>&lt; \/dev\/urandom tr -dc A-Za-z0-9 | head -c14; echo<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"3-Generate-a-strong-password-with-pwgen\"><\/span>3. Generate a strong password with pwgen<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><code>pwgen<\/code>is a tool that generates random, meaningless but pronounceable passwords.<br \/>\nTo install <code>pwgen<\/code> run:<\/p>\n<pre>sudo apt-get install pwgen<\/pre>\n<p>Once the installation is complete, use the following command to generate a random string of 14 characters:<\/p>\n<pre>pwgen 14 1<\/pre>\n<p>You can also use some of the following flags:<br \/>\n<small><\/small><\/p>\n<pre>  -c or --capitalize\r\n        Include at least one capital letter in the password\r\n  -A or --no-capitalize\r\n        Don't include capital letters in the password\r\n  -n or --numerals\r\n        Include at least one number in the password\r\n  -0 or --no-numerals\r\n        Don't include numbers in the password\r\n  -y or --symbols\r\n        Include at least one special symbol in the password\r\n  -s or --secure\r\n        Generate completely random passwords\r\n  -B or --ambiguous\r\n        Don't include ambiguous characters in the password\r\n  -h or --help\r\n        Print a help message\r\n  -H or --sha1=path\/to\/file[#seed]\r\n        Use sha1 hash of given file as a (not so) random generator\r\n  -C\r\n        Print the generated passwords in columns\r\n  -1\r\n        Don't print the generated passwords in columns\r\n  -v or --no-vowels\r\n        Do not use any vowels so as to avoid accidental nasty words\r\n<\/pre>\n<h2><span class=\"ez-toc-section\" id=\"4-Generate-a-strong-password-with-gpg\"><\/span>4. Generate a strong password with gpg<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span class=\"st\"> We can also use the <code>gpg<\/code> tool to generate a strong 14 characters password:<br \/>\n<\/span><\/p>\n<pre>gpg --gen-random --armor 1 14<\/pre>\n<hr \/>\n<p>Of course, there are many other ways to generate a strong password. For example, you can add the following bash shell function to your <code>~\/.bashrc<\/code> file:<\/p>\n<pre>genpasswd() { \r\n    strings \/dev\/urandom | grep -o '[[:alnum:]]' | head -n 14 | tr -d '\\n'; echo\r\n}<\/pre>\n<p>and when you need to generate a strong random password just type <code>genpasswd<\/code><\/p>\n<hr \/>\n<p>If you have any questions regarding the process of generating a strong password from the command line, feel free to comment below or sign up for <a href=\"https:\/\/www.rosehosting.com\/hosting-services.html\">our hosting services<\/a> and contact our <a href=\"https:\/\/www.rosehosting.com\/support.html\">EPIC Support Team<\/a>. They are available 24\/7 and they will take care of your request immediately. You can always asks our support team to generate a random and strong password from the command line in Linux, for your.<\/p>\n<p><strong><span style=\"color: #ff0000;\">PS<\/span><\/strong>. If you liked this post on how to generate a random password from the command line in Linux, please share it with your friends on the social networks using the sharing buttons or simply leave a reply below. Thanks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;ll show you, How to generate a strong password from the command line in Linux. Having a strong password in &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Generate a random password from the command line in Linux\" class=\"read-more button\" href=\"https:\/\/www.rosehosting.com\/blog\/generate-password-linux-command-line\/#more-20659\" aria-label=\"Read more about Generate a random password from the command line in Linux\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":26017,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1703,21],"tags":[32],"class_list":["post-20659","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security","category-tips-and-tricks","tag-password","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.3) - 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