{"version":"1.0","provider_name":"OWS KB","provider_url":"https:\/\/ownwebservers.com\/kb","author_name":"admin","author_url":"https:\/\/ownwebservers.com\/kb\/author\/it_iq6s6sdy\/","title":"Check if FTP port 21 is blocked - OWS KB","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"57upYvoIAm\"><a href=\"https:\/\/ownwebservers.com\/kb\/check-if-ftp-port-21-is-blocked\/\">Check if FTP port 21 is blocked<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/ownwebservers.com\/kb\/check-if-ftp-port-21-is-blocked\/embed\/#?secret=57upYvoIAm\" width=\"600\" height=\"338\" title=\"&#8220;Check if FTP port 21 is blocked&#8221; &#8212; OWS KB\" data-secret=\"57upYvoIAm\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/ownwebservers.com\/kb\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"FTP (File Transfer Protocol) is employed to transfer the files from your local machine to hosting server. FTP by default works on port 21. Your web hosting provider occasionally changes FTP port OR your ISP (Internet Service Provider) blocks it. To see if it\u2019s being blocked, you can telnet the default FTP port 21 . [&hellip;]"}