{"id":8909,"date":"2020-01-17T08:44:14","date_gmt":"2020-01-17T08:44:14","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=8909"},"modified":"2021-11-13T10:50:56","modified_gmt":"2021-11-13T10:50:56","slug":"kubernetes-port-requirement-during-kubernetes-installing-using-kubeadm","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/kubernetes-port-requirement-during-kubernetes-installing-using-kubeadm\/","title":{"rendered":"Kubernetes Port requirement during Kubernetes Installing using kubeadm"},"content":{"rendered":"\n<p><strong>Control-plane node(s) &#8211; required ports<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Protocol<\/th><th>Direction<\/th><th>Port Range<\/th><th>Purpose<\/th><th>Used By<\/th><\/tr><\/thead><tbody><tr><td>TCP<\/td><td>Inbound<\/td><td>6443*<\/td><td>Kubernetes API server<\/td><td>All<\/td><\/tr><tr><td>TCP<\/td><td>Inbound<\/td><td>2379-2380<\/td><td>etcd server client API<\/td><td>kube-apiserver, etcd<\/td><\/tr><tr><td>TCP<\/td><td>Inbound<\/td><td>10250<\/td><td>Kubelet API<\/td><td>Self, Control plane<\/td><\/tr><tr><td>TCP<\/td><td>Inbound<\/td><td>10251<\/td><td>kube-scheduler<\/td><td>Self<\/td><\/tr><tr><td>TCP<\/td><td>Inbound<\/td><td>10252<\/td><td>kube-controller-manager<\/td><td>Self<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Worker node(s) &#8211; required ports<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Protocol<\/th><th>Direction<\/th><th>Port Range<\/th><th>Purpose<\/th><th>Used By<\/th><\/tr><\/thead><tbody><tr><td>TCP<\/td><td>Inbound<\/td><td>10250<\/td><td>Kubelet API<\/td><td>Self, Control plane<\/td><\/tr><tr><td>TCP<\/td><td>Inbound<\/td><td>30000-32767<\/td><td>NodePort Services**<\/td><td>All<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"epyt-gallery\" data-currpage=\"1\" id=\"epyt_gallery_33132\"><iframe loading=\"lazy\"  id=\"_ytid_42961\"  width=\"760\" height=\"427\"  data-origwidth=\"760\" data-origheight=\"427\" src=\"https:\/\/www.youtube.com\/embed\/?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  no-lazyload\" title=\"YouTube player\"  data-epytgalleryid=\"epyt_gallery_33132\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><div class=\"epyt-gallery-list\"><div>Sorry, there was a YouTube error.<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Control-plane node(s) &#8211; required ports Protocol Direction Port Range Purpose Used By TCP Inbound 6443* Kubernetes API server All TCP Inbound 2379-2380 etcd server client API kube-apiserver, etcd TCP Inbound&#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[4859],"tags":[],"class_list":["post-8909","post","type-post","status-publish","format-standard","hentry","category-kubernetes"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/8909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=8909"}],"version-history":[{"count":3,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/8909\/revisions"}],"predecessor-version":[{"id":25099,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/8909\/revisions\/25099"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=8909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=8909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=8909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}