{"id":1169,"date":"2021-01-08T15:40:21","date_gmt":"2021-01-08T14:40:21","guid":{"rendered":"https:\/\/ndk.sytes.net\/wordpress\/?p=1169"},"modified":"2021-01-08T15:40:21","modified_gmt":"2021-01-08T14:40:21","slug":"enable-tlsv1-in-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/ndk.sytes.net\/wordpress\/?p=1169","title":{"rendered":"Enable TLSv1 in Ubuntu 20.04"},"content":{"rendered":"\n<p>By default, Ubuntu 20.04, or better the used OpenSSL version, disables all ciphers below TLSv1.2 and you need to re-enable it in order to use older ciphers. It is quite simple, add following text at the top of \/etc\/ssl\/openssl.cnf:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>openssl_conf = default_conf\n\n&#91; default_conf ]\n\nssl_conf = ssl_sect\n\n&#91;ssl_sect]\n\nsystem_default = system_default_sect\n\n&#91;system_default_sect]\nMinProtocol = TLSv1.2\nCipherString = DEFAULT:@SECLEVEL=1<\/code><\/pre>\n\n\n\n<p>Now reboot the machine and you should be done.<\/p>\n\n\n\n<p><strong>Warning: <\/strong>this can harm your machine, not physically but mentally. make sure you know how to restore the openssl.cnf if you have to.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>By default, Ubuntu 20.04, or better the used OpenSSL version, disables all ciphers below TLSv1.2 and you need to re-enable it in order to use older ciphers. It is quite simple, add following text at the top of \/etc\/ssl\/openssl.cnf: Now reboot the machine and you should be done. Warning: this can harm your machine, not [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,7],"tags":[],"class_list":["post-1169","post","type-post","status-publish","format-standard","hentry","category-linuxunix","category-servers"],"_links":{"self":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1169"}],"version-history":[{"count":1,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1169\/revisions"}],"predecessor-version":[{"id":1170,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1169\/revisions\/1170"}],"wp:attachment":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}