{"id":2757,"date":"2023-02-02T13:53:17","date_gmt":"2023-02-02T08:23:17","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=2757"},"modified":"2023-02-02T13:53:17","modified_gmt":"2023-02-02T08:23:17","slug":"linux-prevent-unprivileged-users-from-viewing-dmesg","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/linux-prevent-unprivileged-users-from-viewing-dmesg\/","title":{"rendered":"Linux prevent unprivileged users from viewing dmesg"},"content":{"rendered":"<p>You can prevent unprivileged users from viewing the <code>dmesg<\/code> logs on Linux by using the following steps:<\/p>\n<ol>\n<li>Edit the sysctl configuration file:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-bash\">sudo nano \/etc\/sysctl.conf<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"2\">\n<li>Add the following line to the end of the file:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs\">kernel.dmesg_restrict = 1<br \/>\n<\/code><\/div>\n<\/div>\n<ol start=\"3\">\n<li>Save and close the file.<\/li>\n<li>Reload the sysctl configuration:<\/li>\n<\/ol>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-css\">sudo sysctl -<span class=\"hljs-selector-tag\">p<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>After these steps, unprivileged users will no longer be able to view the <code>dmesg<\/code> logs, as the <code>dmesg_restrict<\/code> flag will restrict access to it.<\/p>\n<p>Note: Only the root user or users with the <code>CAP_SYSLOG<\/code> capability will be able to view the <code>dmesg<\/code> logs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You can prevent unprivileged users from viewing the dmesg logs on Linux by using the following steps: Edit the sysctl configuration file: sudo nano \/etc\/sysctl.conf Add the following line to the end of the file: kernel.dmesg_restrict = 1 Save and close the file. Reload the sysctl configuration: sudo sysctl -p After these steps, unprivileged users &#8230; <a title=\"Linux prevent unprivileged users from viewing dmesg\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/linux-prevent-unprivileged-users-from-viewing-dmesg\/\" aria-label=\"Read more about Linux prevent unprivileged users from viewing dmesg\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2757","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Linux prevent unprivileged users from viewing dmesg - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/linux-prevent-unprivileged-users-from-viewing-dmesg\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux prevent unprivileged users from viewing dmesg - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"You can prevent unprivileged users from viewing the dmesg logs on Linux by using the following steps: Edit the sysctl configuration file: sudo nano \/etc\/sysctl.conf Add the following line to the end of the file: kernel.dmesg_restrict = 1 Save and close the file. Reload the sysctl configuration: sudo sysctl -p After these steps, unprivileged users ... 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