{"id":8968,"date":"2022-05-11T22:59:39","date_gmt":"2022-05-12T03:59:39","guid":{"rendered":"https:\/\/www.rushworth.us\/lisa\/?p=8968"},"modified":"2022-05-11T22:59:39","modified_gmt":"2022-05-12T03:59:39","slug":"udp-port-check","status":"publish","type":"post","link":"https:\/\/www.rushworth.us\/lisa\/?p=8968","title":{"rendered":"UDP Port Check"},"content":{"rendered":"<p>While using telnet to connect to a host:port is a quick way to verify connectivity &#8230; it only works for tcp ports. There&#8217;s no udp telnet. But there are a few ways to verify a port is open and available to you &#8230;<\/p>\n<p>nmap with -sU will show the port as open or closed<\/p>\n<p><a href=\"https:\/\/www.rushworth.us\/lisa\/?attachment_id=8969\" rel=\"attachment wp-att-8969\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8969\" src=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check-nmap.png\" alt=\"\" width=\"635\" height=\"161\" srcset=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check-nmap.png 635w, https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check-nmap-300x76.png 300w\" sizes=\"auto, (max-width: 635px) 100vw, 635px\" \/><\/a><\/p>\n<p>nc will send a packet<\/p>\n<p><a href=\"https:\/\/www.rushworth.us\/lisa\/?attachment_id=8970\" rel=\"attachment wp-att-8970\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8970\" src=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check.png\" alt=\"\" width=\"595\" height=\"146\" srcset=\"https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check.png 595w, https:\/\/www.rushworth.us\/lisa\/wp-content\/uploads\/2022\/05\/udp-port-check-300x74.png 300w\" sizes=\"auto, (max-width: 595px) 100vw, 595px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>While using telnet to connect to a host:port is a quick way to verify connectivity &#8230; it only works for tcp ports. There&#8217;s no udp telnet. But there are a few ways to verify a port is open and available to you &#8230; nmap with -sU will show the port as open or closed nc &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[1298,47,294,1630,1629,1195,1631],"class_list":["post-8968","post","type-post","status-publish","format-standard","hentry","category-system-administration","tag-centos","tag-fedora","tag-linux","tag-nc","tag-nmap","tag-redhat","tag-telnet"],"_links":{"self":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/8968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8968"}],"version-history":[{"count":1,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/8968\/revisions"}],"predecessor-version":[{"id":8971,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/8968\/revisions\/8971"}],"wp:attachment":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}