{"id":2313,"date":"2016-09-10T22:30:18","date_gmt":"2016-09-10T21:30:18","guid":{"rendered":"http:\/\/emtunc.org\/blog\/?p=2313"},"modified":"2016-09-10T22:30:18","modified_gmt":"2016-09-10T21:30:18","slug":"duo-security-ip-address-range","status":"publish","type":"post","link":"https:\/\/emtunc.org\/blog\/09\/2016\/duo-security-ip-address-range\/","title":{"rendered":"Duo Security IP Address Range"},"content":{"rendered":"<p>Here are the IP ranges used by Duo Security for authentication purposes &#8211; list correct as of September 2016. Duo don&#8217;t make this list public (security through obscurity?) but they do give it to customers on request so here they are:<\/p>\n<p><!--more--><\/p>\n<pre class=\"lang:default decode:true \">54.241.191.128\/26\r\n54.236.251.192\/26\r\n52.19.127.192\/26\r\n52.32.63.128\/26\r\n52.59.243.192\/26<\/pre>\n<p>You can use this information to tighten up your firewall policies and rules. Previously, as per Duo Security&#8217;s instructions on their knowledge base articles, you would have had to allow access from your servers to anywhere on the internet on port 443 &#8211; not really acceptable in my opinion.<\/p>\n<p>Hopefully that comes in handy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here are the IP ranges used by Duo Security for authentication purposes &#8211; list correct as of September 2016. Duo don&#8217;t make this list public (security through obscurity?) but they do give it to customers on request so here they are:<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1],"tags":[127],"class_list":["post-2313","post","type-post","status-publish","format-standard","hentry","category-tech","tag-duosecurity"],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1trTO-Bj","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/posts\/2313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/comments?post=2313"}],"version-history":[{"count":1,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/posts\/2313\/revisions"}],"predecessor-version":[{"id":2314,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/posts\/2313\/revisions\/2314"}],"wp:attachment":[{"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/media?parent=2313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/categories?post=2313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emtunc.org\/blog\/wp-json\/wp\/v2\/tags?post=2313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}