{"id":2988,"date":"2019-07-10T17:51:04","date_gmt":"2019-07-10T16:51:04","guid":{"rendered":"https:\/\/kudzia.eu\/b\/?p=2988"},"modified":"2019-07-10T10:58:04","modified_gmt":"2019-07-10T09:58:04","slug":"lets-encrypt-via-proxy-server-under-debian","status":"publish","type":"post","link":"https:\/\/kudzia.eu\/b\/2019\/07\/lets-encrypt-via-proxy-server-under-debian\/","title":{"rendered":"let&#8217;s encrypt via proxy server under debian"},"content":{"rendered":"<p>i prefer to have strict DROP policy for the outgoing traffic from production servers. let&#8217;s encrypt API endpoint is behind Akamai&#8217;s CDN and IP address to which acme-v02.api.letsencrypt.org resolves changes frequently. i don&#8217;t like playing whack-a-mole every 3 months so i&#8217;ve:<\/p>\n<ul>\n<li>set up a squid-based proxy server that allows for filtering based on domain names: \/etc\/squid\/squid.conf\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nacl src_web2 src 19.18.17.16 # ip of the web server with let's encrypt certbot\r\nacl dst_letsencryptacmeapi dstdomain acme-v01.api.letsencrypt.org\r\nacl dst_letsencryptacmeapi dstdomain acme-staging-v02.api.letsencrypt.org\r\nacl dst_letsencryptacmeapi dstdomain acme-v02.api.letsencrypt.org\r\nhttp_access allow src_web2 dst_letsencryptacmeapi\r\nhttp_access deny src_web2\r\n<\/pre>\n<\/li>\n<li>told let&#8217;s encrypt to use a proxy server<br \/>\nby creating \/etc\/systemd\/system\/certbot.service.d\/env-proxy.conf with:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\n&#x5B;Service]\r\n# that's the address of proxy server\r\nEnvironment=&quot;HTTPS_PROXY=http:\/\/1.2.3.4:3128&quot;\r\n<\/pre>\n<p>and running: <b>systemctl  daemon-reload<\/b>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>i prefer to have strict DROP policy for the outgoing traffic from production servers. let&#8217;s encrypt API endpoint is behind Akamai&#8217;s CDN and IP address to which acme-v02.api.letsencrypt.org resolves changes frequently. i don&#8217;t like playing whack-a-mole every 3 months so i&#8217;ve: set up a squid-based proxy server that allows for filtering based on domain names: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,1,51],"tags":[102,6],"class_list":["post-2988","post","type-post","status-publish","format-standard","hentry","category-tech","category-uncategorized","category-unimportant","tag-letsencrypt","tag-linux"],"_links":{"self":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/2988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/comments?post=2988"}],"version-history":[{"count":3,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/2988\/revisions"}],"predecessor-version":[{"id":2991,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/2988\/revisions\/2991"}],"wp:attachment":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/media?parent=2988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/categories?post=2988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/tags?post=2988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}