{"id":5671,"date":"2023-02-16T14:08:21","date_gmt":"2023-02-16T08:38:21","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=5671"},"modified":"2023-02-16T14:08:21","modified_gmt":"2023-02-16T08:38:21","slug":"linux-mtu-change-size","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/linux-mtu-change-size\/","title":{"rendered":"Linux MTU Change Size"},"content":{"rendered":"<p>The MTU (Maximum Transmission Unit) is the maximum size of a packet that can be transmitted over a network. In Linux, you can change the MTU size to improve network performance or to work around network issues.<\/p>\n<p>To change the MTU size in Linux, you can use the <code>ifconfig<\/code> or <code>ip<\/code> command. Here&#8217;s how to change the MTU size using the <code>ifconfig<\/code> command:<\/p>\n<ol>\n<li>Open a terminal window.<\/li>\n<li>Type the following command to display a list of network interfaces:\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\">ifconfig -<span class=\"hljs-selector-tag\">a<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<\/li>\n<li>Find the interface for which you want to change the MTU size. Typically, the interface name starts with &#8220;eth&#8221; for Ethernet interfaces or &#8220;wlan&#8221; for wireless interfaces.<\/li>\n<li>Type the following command to change the MTU size for the interface:\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-kotlin\">sudo ifconfig <span class=\"hljs-keyword\">interface<\/span> <span class=\"hljs-title class_\">mtu<\/span> <span class=\"hljs-title\">new_mtu_size<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>Replace &#8220;interface&#8221; with the name of the network interface, and &#8220;new_mtu_size&#8221; with the desired MTU size. For example, to change the MTU size to 1500 for the &#8220;eth0&#8221; interface, you would use the following command:<\/p>\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-yaml\"><span class=\"hljs-string\">sudo<\/span> <span class=\"hljs-string\">ifconfig<\/span> <span class=\"hljs-string\">eth0<\/span> <span class=\"hljs-string\">mtu<\/span> <span class=\"hljs-number\">1500<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<\/li>\n<li>Verify that the MTU size has been changed by typing the following command:\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-go\">ifconfig <span class=\"hljs-keyword\">interface<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>Replace &#8220;interface&#8221; with the name of the network interface. The output should include the new MTU size.<\/li>\n<\/ol>\n<p>Note that changing the MTU size can affect network performance and may cause connectivity issues if the new size is too large for the network. It is recommended to test different MTU sizes to find the optimal value for your network configuration.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The MTU (Maximum Transmission Unit) is the maximum size of a packet that can be transmitted over a network. In Linux, you can change the MTU size to improve network performance or to work around network issues. To change the MTU size in Linux, you can use the ifconfig or ip command. Here&#8217;s how to &#8230; <a title=\"Linux MTU Change Size\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/linux-mtu-change-size\/\" aria-label=\"Read more about Linux MTU Change Size\">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-5671","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 MTU Change Size - 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-mtu-change-size\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux MTU Change Size - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"The MTU (Maximum Transmission Unit) is the maximum size of a packet that can be transmitted over a network. 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