{"id":4676,"date":"2023-07-22T09:50:50","date_gmt":"2023-07-22T09:50:50","guid":{"rendered":"https:\/\/arzhost.com\/blogs\/?p=4676"},"modified":"2025-01-28T21:02:58","modified_gmt":"2025-01-28T16:02:58","slug":"cannot-connect-to-the-docker-daemon","status":"publish","type":"post","link":"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/","title":{"rendered":"How to Resolve the \u201ccannot connect to the Docker daemon\u201d Error?"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><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><\/span><\/a><\/span><\/div>\n<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:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Introduction_Understanding_the_Docker_Daemon_Connection_Error\" >Introduction: Understanding the Docker Daemon Connection Error<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Resolving_the_%E2%80%9CCannot_Connect_to_the_Docker_Daemon%E2%80%9D_Error\" >Resolving the \u201cCannot Connect to the Docker Daemon\u201d Error<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Step_1_Examine_the_Docker_Engine_Checking_Docker_Status\" >Step 1: Examine the Docker Engine: Checking Docker Status<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Step_2_Assign_Ownership_to_the_Docker_Unix_Socket_Ensuring_Proper_Permissions\" >Step 2: Assign Ownership to the Docker Unix Socket: Ensuring Proper Permissions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Step_3_Verify_File_Ownership_Checking_User_Access\" >Step 3: Verify File Ownership: Checking User Access<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Take_Your_WordPress_Site_to_New_Heights%E2%80%94Sign_Up_and_Save_Big\" >Take Your WordPress Site to New Heights\u2014Sign Up and Save Big!<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Step_4_Add_Your_User_to_the_Docker_Group_Updating_User_Permissions\" >Step 4: Add Your User to the Docker Group: Updating User Permissions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Step_5_Add_Environment_Variables_on_OS_X_Proper_Configuration_for_macOS\" >Step 5: Add Environment Variables on OS X: Proper Configuration for macOS<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/arzhost.com\/blogs\/cannot-connect-to-the-docker-daemon\/#Conclusion_Final_Thoughts_on_Resolving_Docker_Daemon_Issues\" >Conclusion: Final Thoughts on Resolving Docker Daemon Issues<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction_Understanding_the_Docker_Daemon_Connection_Error\"><\/span><strong>Introduction:<\/strong> Understanding the Docker Daemon Connection Error<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Users who are unfamiliar with Docker may find it challenging to utilize because problems frequently arise soon after installation. When using Docker, the docker-compose build command frequently results in the error &#8220;cannot connect to the Docker daemon&#8221;.<\/p>\n\n\n\n<p><u>This tutorial from our <a href=\"https:\/\/arzhost.com\/blogs\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/blogs\/\"><strong>Blog<\/strong><\/a> will discuss potential reasons for the &#8220;cannot connect to the Docker daemon&#8221; error and solutions.<\/u><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Access to the terminal or command line<\/li>\n\n\n\n<li>A functioning Docker setup<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resolving_the_%E2%80%9CCannot_Connect_to_the_Docker_Daemon%E2%80%9D_Error\"><\/span><strong>Resolving the \u201cCannot Connect to the Docker Daemon\u201d Error<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The error &#8220;<span style=\"color: #000000;\"><strong>cannot connect to the Docker daemon<\/strong><\/span>&#8221; can be resolved in several ways. Try the next approach if the first one doesn&#8217;t help you until you find a solution.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_1_Examine_the_Docker_Engine_Checking_Docker_Status\"><\/span><strong>Step 1: Examine the Docker Engine: Checking Docker Status<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Docker-compose cannot access the Docker engine if it is not running, which results in an error.<\/p>\n\n\n\n<p><u>1: To begin with, confirm that the Docker engine is active:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>service docker status in sudo<\/code><\/li>\n<\/ul>\n\n\n\n<p><u>2: To start the Docker engine if it isn&#8217;t already running, type the following command:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>start with sudo service docker<\/code><\/li>\n<\/ul>\n\n\n\n<p>3: Try executing the docker-compose build command once more after starting the Docker engine. Try one of the following fixes if the issue continues.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_2_Assign_Ownership_to_the_Docker_Unix_Socket_Ensuring_Proper_Permissions\"><\/span><strong>Step 2: Assign Ownership to the Docker Unix Socket: Ensuring Proper Permissions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The &#8220;cannot connect to the Docker daemon&#8221; problem can also occur if the Docker Unix socket file&#8217;s ownership is set to the incorrect value.<\/p>\n\n\n\n<p><u>1: Verify who owns the Docker Unix socket:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\/var\/run\/docker.sock sudo ls -la<\/code><\/li>\n<\/ul>\n\n\n\n<p><u>2: If necessary, transfer ownership to the user by:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\/var\/run\/docker.sock sudo chown [username]: docker<\/code><\/li>\n<\/ul>\n\n\n\n<p><strong>Related Article: <a href=\"https:\/\/arzhost.com\/blogs\/kubernetes-vs-docker-swarm\/\">Kubernetes vs. Docker Swarm: Is Right for You<\/a><\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_3_Verify_File_Ownership_Checking_User_Access\"><\/span><strong>Step 3: Verify File Ownership: Checking User Access<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Files utilized by your Docker build may also have ownership issues. An error message reading &#8220;cannot connect to the Docker daemon&#8221; is produced if Docker needs to use a file that it cannot access.<\/p>\n\n\n\n<p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/jeKnYZCcdvE\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n\n\n\n<p><u>1: For each individual container, run the docker build command. This provides you with a thorough output that highlights any possible mistakes.<\/u><\/p>\n\n\n\n<p><u>2: Review each container&#8217;s output, looking for any errors that state &#8220;cannot connect to the Docker daemon.&#8221; The error report will show the files that the docker build command cannot access if there is a problem with the file ownership.<\/u><\/p>\n\n\n\n<p><u>3: There are numerous options for resolving the ownership of used file disputes:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The problematic files can be quickly deleted, but doing so will impact any builds that rely on those files.<\/li>\n\n\n\n<li>Another approach is to include the files your build cannot access by adding the. Docker ignores the file to your current build.<\/li>\n\n\n\n<li>Last but not least, you can modify file ownership using:<\/li>\n<\/ul>\n\n\n\n<p><code>\/your\/file\/location sudo chown [username]: docker<\/code><\/p>\n\n\n\n<div class=\"wp-block-uagb-call-to-action uagb-block-aaa58f13 wp-block-button uag-blocks-common-selector\" style=\"--z-index-desktop:479;;--z-index-tablet:undefined;;--z-index-mobile:undefined;\"><div class=\"uagb-cta__wrap\"><h2 class=\"uagb-cta__title\"><span class=\"ez-toc-section\" id=\"Take_Your_WordPress_Site_to_New_Heights%E2%80%94Sign_Up_and_Save_Big\"><\/span><a href=\"https:\/\/arzhost.com\/wordpress-hosting\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/wordpress-hosting\/\">Take Your WordPress Site to New Heights\u2014Sign Up and Save Big!<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"uagb-cta__desc\">Optimized for WordPress\u2014Get Your Hosting Plan at just <strong>$0.99\/month!<\/strong><\/p><\/div><div class=\"uagb-cta__buttons\"><a href=\"https:\/\/arzhost.com\/wordpress-hosting\/\" class=\"uagb-cta__button-link-wrapper wp-block-button__link\" target=\"_self\" rel=\"noopener noreferrer\">Read More<\/a><\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_4_Add_Your_User_to_the_Docker_Group_Updating_User_Permissions\"><\/span><strong>Step 4: Add Your User to the Docker Group: Updating User Permissions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>The issue can also occur if incorrect user rights are used. The Docker engine must be accessible without the use of the sudo command.<\/p>\n\n\n\n<p><u>1: Use the usermod command to add the current user to the Docker group to resolve this issue:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>docker \u2014usermod \"[username]\"<\/code><\/li>\n<\/ul>\n\n\n\n<p><u>2: To verify the modifications, log out and back in.<\/u><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_5_Add_Environment_Variables_on_OS_X_Proper_Configuration_for_macOS\"><\/span><strong>Step 5: Add Environment Variables on OS X: Proper Configuration for macOS<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p><u>You might need to add environment variables if you&#8217;re using Docker on OS X:<\/u><\/p>\n\n\n\n<p><u>1: Launch the Docker virtual machine first:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>launch a docker-machine<\/code><\/li>\n<\/ul>\n\n\n\n<p><u>2: Obtain the Docker environment variables by using:<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>env docker-machine<\/code><\/li>\n<\/ul>\n\n\n\n<p><u>3: Set the following environment variables.<\/u><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\"(Docker-machine env default)\" is evaluated.<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_Final_Thoughts_on_Resolving_Docker_Daemon_Issues\"><\/span><strong>Conclusion:<\/strong> Final Thoughts on Resolving Docker Daemon Issues<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>After completing this tutorial, you have to be aware of the possible causes and solutions for the &#8220;cannot connect to the <a href=\"https:\/\/www.docker.com\/\" target=\"_blank\" rel=\"noopener\">Docker<\/a> daemon&#8221; error.<\/p>\n\n\n\n<p>Get Reliable and Scalable Hosting Service, Visit us at our website, <a href=\"https:\/\/arzhost.com\/\"><strong>ARZ Host<\/strong><\/a>.<\/p>\n\n\n\n<p><strong>Read more:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/how-to-fix-403-forbidden-error-wordpress\/\">How To Fix 403 Forbidden Error WordPress<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/how-to-get-the-most-out-of-claude-ai\/\">How To Get The Most Out Of Claude Ai<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/bad-gateway-error-502-the-ultimate-guide-to-quick-fixes\/\">Bad Gateway Error (502): The Ultimate Guide to Quick Fixes<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/a-deep-dive-into-todays-best-linux-distros\/\">A Deep Dive Into Today\u2019s Best Linux Distros<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/domain-investor-terms-powerful-strategy\/\">Domain Investor Terms: Expert Insight on Powerful Strategy<\/a><\/li>\n<\/ul>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction: Understanding the Docker Daemon Connection Error Users who are unfamiliar with Docker may find it challenging to utilize because problems frequently arise soon after installation. When using Docker, the docker-compose build command frequently results in the error &#8220;cannot connect to the Docker daemon&#8221;. This tutorial from our Blog will discuss potential reasons for the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6116,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[],"table_tags":[],"class_list":["post-4676","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-error"],"_links":{"self":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/comments?post=4676"}],"version-history":[{"count":4,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4676\/revisions"}],"predecessor-version":[{"id":11315,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4676\/revisions\/11315"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/media\/6116"}],"wp:attachment":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/media?parent=4676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/categories?post=4676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/tags?post=4676"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/table_tags?post=4676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}