{"id":162,"date":"2018-10-27T20:43:56","date_gmt":"2018-10-27T18:43:56","guid":{"rendered":"http:\/\/developer.ps\/?p=162"},"modified":"2026-09-22T20:52:17","modified_gmt":"2026-09-22T18:52:17","slug":"lets-encrypt-certificate-for-lync-skype-for-business","status":"publish","type":"post","link":"https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/","title":{"rendered":"Let&#8217;s encrypt certificate for Lync (Skype for Business)"},"content":{"rendered":"<p><a href=\"https:\/\/letsencrypt.org\/\">Let&#8217;s Encrypt<\/a> is a free, automated, and open Certificate Authority. It has a limitation for 3 month, but it can be automatically\u00a0 renewed.<\/p>\n<p>Follow the below steps to use let&#8217;s encrypt certificate on a Lync server:<\/p>\n<ol>\n<li>Search and open &#8220;Lync Server Deployment Wizard&#8221;<br \/>\n<div id='gallery-1' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s1\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s1-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Once open, click on &#8220;Install or update Lync Server System&#8221;<br \/>\n<div id='gallery-2' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s2\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s2-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Click on &#8220;Request, Install or Assign Certificates&#8221;<br \/>\n<div id='gallery-3' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s3\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s3-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Delete the expired Certificate then click on &#8220;Request&#8221;<br \/>\n<div id='gallery-4' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s4\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s4-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Next, then choose &#8220;Prepare the request now, but sent it later &#8230;&#8221;<br \/>\n<div id='gallery-5' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s5\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s5-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s6-4\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s6-3-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Choose the name and path for the request file and click on next<br \/>\n<div id='gallery-6' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s7\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s7-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s8\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s8-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Choose a friendly name, such as *.domain.ext, then fill in the required details and click next until you get to the last step. Click on View and copy the generated request<br \/>\n<div id='gallery-7' class='gallery galleryid-162 gallery-columns-4 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s10\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s10-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s11\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s11-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s12_change\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s12_change-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s13\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s13-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Go to <a href=\"https:\/\/zerossl.com\/free-ssl\">https:\/\/zerossl.com\/free-ssl<\/a> and enter your email address (optional, but you get renewal alerts). Paste the request code on the right side. You can either choose DNS or HTML validation, I choose DNS. Accept the terms and click next<br \/>\n<div id='gallery-8' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s14\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s14-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s15\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s15-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Download the key for future renewals<br \/>\n<div id='gallery-9' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s15\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s15-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Add the DNS TXT records or upload the HTML verification files<br \/>\n<div id='gallery-10' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s16_change\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s16_change-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>\u00a0After the verification is complete, click next and download the new issued certificate<br \/>\n<div id='gallery-11' class='gallery galleryid-162 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s17\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s17-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Rename the downloaded file extenstion to cer and get back to &#8220;Lync server Install or update Lync Server System&#8221;. Click on &#8220;import certificate&#8221;, choose the downloaded certificate and flow the wizard until the end<br \/>\n<div id='gallery-12' class='gallery galleryid-162 gallery-columns-4 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s18\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s18-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s19\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s19-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s20\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s20-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s21\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s21-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Click on Assign, then choose the latest certificate and continue until the end<br \/>\n<div id='gallery-13' class='gallery galleryid-162 gallery-columns-4 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s22\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s22-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s23\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s23-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s24\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s24-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/developer.ps\/index.php\/2018\/10\/27\/lets-encrypt-certificate-for-lync-skype-for-business\/s25\/'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/developer.ps\/wp-content\/uploads\/2018\/10\/s25-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/li>\n<li>Restart Lync services or the server and all should be fine<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Let&#8217;s Encrypt is a free, automated, and open Certificate Authority. It has a limitation for 3 month, but it can be automatically\u00a0 renewed. Follow the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-162","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/posts\/162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/comments?post=162"}],"version-history":[{"count":12,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/posts\/162\/revisions"}],"predecessor-version":[{"id":217,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/posts\/162\/revisions\/217"}],"wp:attachment":[{"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/media?parent=162"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/categories?post=162"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/developer.ps\/index.php\/wp-json\/wp\/v2\/tags?post=162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}