{"id":348,"date":"2022-07-14T23:02:42","date_gmt":"2022-07-14T14:02:42","guid":{"rendered":"https:\/\/www.bees-team.com\/?p=348"},"modified":"2022-07-30T21:48:56","modified_gmt":"2022-07-30T12:48:56","slug":"ssl-tsl-setting","status":"publish","type":"post","link":"https:\/\/www.bees-team.com\/?p=348","title":{"rendered":"\u2463Ubuntu &#8211; Postfix &#8211; Dovecot : SSL\/TSL security mail server setting, m\u1ed9t ph\u00e1t \u0103n ngay."},"content":{"rendered":"<div class=\"post-content\"><div class='booster-block booster-read-block'>\n                <div class=\"twp-read-time\">\n                \t<i class=\"booster-icon twp-clock\"><\/i> <span>Read Time:<\/span>3 Minute, 2 Second                <\/div>\n\n            <\/div><h2>M\u1ee5c l\u1ee5c<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=288#ta-toc-1\">Install v\u00e0 c\u1ea5u h\u00ecnh cho Postfix.<\/a><\/li>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=316#ta-toc-2\">Install v\u00e0 c\u1ea5u h\u00ecnh cho Dovecot.<\/a><\/li>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=329#ta-toc-3\">T\u1ea1o mail account.<\/a><\/li>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=348#ta-toc-4\">Setting SSL\/TSL cho mail server.<\/a><\/li>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=367#ta-toc-5\">Install ch\u01b0\u01a1ng tr\u00ecnh di\u1ec7t virus Clamav v\u00e0 Amavisd.<\/a><\/li>\n<li><a href=\"https:\/\/www.bees-team.com\/?p=348#ta-toc-6\">Video h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc c\u1ee5 th\u1ec3.<\/a><\/li>\n<\/ul>\n<div class=\"code-block code-block-1\">Ubuntu 20.04: Mail server.<\/div>\n<div class=\"voice\">\n<div class=\"voice-text-left\">\n<h2><span id=\"ta-toc-4\">C\u1ea5u h\u00ecnh SSL\/TLS cho mail server.<\/span><\/h2>\n<\/div>\n<\/div>\n<h4>\u2460D\u00f9ng Let&#8217;s Encrypt \u0111\u1ec3 l\u1ea5y file ch\u1ee9ng th\u1ef1c (certification file).<\/h4>\n<pre># Install certbot\r\nroot@mail:~# <span style=\"color: red;\">apt<\/span> <span style=\"color: blue;\">install certbot<\/span>\r\n\r\n# Ki\u1ec3m tra xem \u0111\u00e3 \u0111\u01b0\u1ee3c install ch\u01b0a\r\nroot@mail:~# <span style=\"color: red;\">apt<\/span> <span style=\"color: blue;\">list <\/span> <span style=\"color: red;\">--installed<\/span> <span style=\"color: blue;\"> | grep certbot<\/span>\r\n\r\n# N\u1ebfu c\u00f9ng server \u0111ang ch\u1ea1y Apache th\u00ec ph\u1ea3i d\u1eebng n\u00f3 \r\n# tr\u01b0\u1edbc khi ch\u1ea1y certbot l\u1ea5y file ch\u1ee9ng th\u1ef1c.\r\nroot@mail:~# <span style=\"color: red;\">service<\/span> <span style=\"color: blue;\">apache2 stop<\/span>\r\n\r\n# T\u1ea1o file ch\u1ee9ng th\u1ef1c\r\nroot@mail:~# <span style=\"color: blue;\">sudo certbot certonly --standalone -d mail.vidu.com<\/span> \r\n\r\n<span style=\"color: black;\">Saving debug log to \/var\/log\/letsencrypt\/letsencrypt.log\r\nPlugins selected: Authenticator standalone, Installer None\r\nEnter email address (used for urgent renewal and security notices) (Enter 'c' to\r\ncancel): (Nh\u1eadp mail t\u00f9y \u00fd)<\/span> \r\n<span style=\"color: black;\">\r\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r\nPlease read the Terms of Service at\r\nhttps:\/\/letsencrypt.org\/documents\/LE-SA-v1.2-November-15-2017.pdf. You must\r\nagree in order to register with the ACME server at\r\nhttps:\/\/acme-v02.api.letsencrypt.org\/directory\r\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r\n(A)gree\/(C)ancel: A # Ch\u1ea5p thu\u1eadn quy \u0111\u1ecbnh khi s\u1eed d\u1ee5ng service n\u00e0y.<\/span>\r\n<span style=\"color: black;\">\r\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r\nWould you be willing to share your email address with the Electronic Frontier\r\nFoundation, a founding partner of the Let's Encrypt project and the non-profit\r\norganization that develops Certbot? We'd like to send you email about our work\r\nencrypting the web, EFF news, campaigns, and ways to support digital freedom.\r\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r\n(Y)es\/(N)o: N # \u0110\u0103ng k\u00fd mailing list yes or no\r\nObtaining a new certificate\r\nPerforming the following challenges:\r\nhttp-01 challenge for mail.vidu.com\r\nCleaning up challenges\r\n\r\nIMPORTANT NOTES:\r\n - Congratulations! Your certificate and chain have been saved at:\r\n   \/etc\/letsencrypt\/live\/mail.vidu.com\/fullchain.pem\r\n   Your key file has been saved at:\r\n   \/etc\/letsencrypt\/live\/mail.vidu.com\/privkey.pem\r\n   Your cert will expire on 2022-03-19. To obtain a new or tweaked\r\n   version of this certificate in the future, simply run certbot\r\n   again. To non-interactively renew *all* of your certificates, run\r\n   \"certbot renew\"\r\n - If you like Certbot, please consider supporting our work by:\r\n\r\n   Donating to ISRG \/ Let's Encrypt:   https:\/\/letsencrypt.org\/donate\r\n   Donating to EFF:                    https:\/\/eff.org\/donate-le\r\n<\/span>\r\n# Kh\u1edfi \u0111\u1ed9ng l\u1ea1i Apache n\u1ebfu c\u00f3.\r\nroot@mail:~# <span style=\"color: blue;\">sudo service apache2 start<\/span>\r\n<\/pre>\n<h4>\u2461C\u1ea5u h\u00ecnh cho Postfix v\u00e0 Dovecot.<\/h4>\n<pre>root@mail:~# <span style=\"color: red;\">vi<\/span> <span style=\"color: blue;\">\/etc\/postfix\/main.cf<\/span> \r\n\r\n# Add v\u00e0o cu\u1ed1i file.\r\n<span style=\"color: blue;\">\r\n#smtpd_use_tls = yes\r\nsmtp_tls_security_level = may\r\nsmtpd_tls_security_level = may\r\nsmtp_tls_mandatory_protocols = !SSLv2, !SSLv3\r\nsmtpd_tls_mandatory_protocols = !SSLv2, !SSLv3\r\nsmtpd_tls_cert_file = \/etc\/letsencrypt\/live\/mail.vidu.com\/fullchain.pem\r\nsmtpd_tls_key_file = \/etc\/letsencrypt\/live\/mail.vidu.com\/privkey.pem\r\nsmtpd_tls_session_cache_database = btree:${data_directory}\/smtpd_scache<\/span>\r\n\r\n\r\nroot@mail:~# <span style=\"color: red;\">vi<\/span> <span style=\"color: blue;\">\/etc\/postfix\/master.cf<\/span> \r\n\r\n# T\u1eeb d\u00f2ng 17-20: X\u00f3a comment out\r\n<span style=\"color: black;\">\r\nsubmission inet n       -       y       -       -       smtpd\r\n  -o syslog_name=postfix\/submission\r\n#  -o smtpd_tls_security_level=encrypt\r\n  -o smtpd_sasl_auth_enable=yes\r\n<\/span> \r\n# T\u1eeb d\u00f2ng 29-32: X\u00f3a comment out\r\n<span style=\"color: black;\">\r\nsmtps     inet  n       -       y       -       -       smtpd\r\n  -o syslog_name=postfix\/smtps\r\n  -o smtpd_tls_wrappermode=yes\r\n  -o smtpd_sasl_auth_enable=yes\r\n<\/span>\r\n\r\nroot@mail:~# <span style=\"color: red;\">vi<\/span> <span style=\"color: blue;\">\/etc\/dovecot\/conf.d\/10-ssl.conf<\/span>\r\n\r\n# D\u00f2ng s\u1ed1 6: S\u1eeda th\u00e0nh yes\r\n<span style=\"color: black;\">ssl = <\/span><span style=\"color: blue;\">yes<\/span>\r\n\r\n# D\u00f2ng 12,13: X\u00f3a comment out v\u00e0 set \u0111\u01b0\u1eddng d\u1eabn file ch\u1ee9ng th\u1ef1c.\r\n<span style=\"color: black;\">ssl_cert = &lt;<\/span><span style=\"color: blue;\">\/etc\/letsencrypt\/live\/mail.vidu.com\/fullchain.pem<\/span>\r\n<span style=\"color: black;\">ssl_key = &lt;<\/span><span style=\"color: blue;\">\/etc\/letsencrypt\/live\/mail.vidu.com\/privkey.pem<\/span>\r\n\r\n# Kh\u1edfi \u0111\u1ed9ng l\u1ea1i Postfix v\u00e0 Dovecot\r\nroot@mail:~# <span style=\"color: red;\">systemctl<\/span> <span style=\"color: blue;\">restart postfix dovecot<\/span>\r\n<\/pre>\n<h2><span id=\"ta-toc-6\">Video h\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc c\u1ee5 th\u1ec3.<\/span><\/h2>\n<p>\u0110ang chu\u1ea9n b\u1ecb<\/p>\n        <div class=\"booster-block booster-reactions-block\">\n            <div class=\"twp-reactions-icons\">\n                \n                <div class=\"twp-reacts-wrap\">\n                    <a react-data=\"be-react-1\" post-id=\"348\" class=\"be-face-icons un-reacted\" href=\"javascript:void(0)\">\n                        <img decoding=\"async\" src=\"https:\/\/www.bees-team.com\/wp-content\/plugins\/booster-extension\/\/assets\/icon\/happy.svg\" alt=\"Happy\">\n                    <\/a>\n                    <div class=\"twp-reaction-title\">\n                        Happy                    <\/div>\n                    <div class=\"twp-count-percent\">\n                                                    <span style=\"display: none;\" class=\"twp-react-count\">0<\/span>\n                        \n                                                <span class=\"twp-react-percent\"><span>0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                <div 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href=\"javascript:void(0)\">\n                        <img decoding=\"async\" src=\"https:\/\/www.bees-team.com\/wp-content\/plugins\/booster-extension\/\/assets\/icon\/excited.svg\" alt=\"Excited\">\n                    <\/a>\n                    <div class=\"twp-reaction-title\">\n                        Excited                    <\/div>\n                    <div class=\"twp-count-percent\">\n                                                    <span style=\"display: none;\" class=\"twp-react-count\">0<\/span>\n                                                                        <span class=\"twp-react-percent\"><span>0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                <div class=\"twp-reacts-wrap\">\n                    <a react-data=\"be-react-6\" post-id=\"348\" class=\"be-face-icons un-reacted\" href=\"javascript:void(0)\">\n                        <img decoding=\"async\" src=\"https:\/\/www.bees-team.com\/wp-content\/plugins\/booster-extension\/\/assets\/icon\/sleepy.svg\" alt=\"Sleepy\">\n                    <\/a>\n                    <div class=\"twp-reaction-title\">\n                        Sleepy                    <\/div>\n                    <div class=\"twp-count-percent\">\n                                                    <span style=\"display: none;\" class=\"twp-react-count\">0<\/span>\n                        \n                                                <span class=\"twp-react-percent\"><span>0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                <div class=\"twp-reacts-wrap\">\n                    <a react-data=\"be-react-4\" post-id=\"348\" class=\"be-face-icons un-reacted\" href=\"javascript:void(0)\">\n                        <img decoding=\"async\" src=\"https:\/\/www.bees-team.com\/wp-content\/plugins\/booster-extension\/\/assets\/icon\/angry.svg\" alt=\"Angry\">\n  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Install v\u00e0<a href=\"https:\/\/www.bees-team.com\/?p=348\">Read More<i class=\"fa fa-long-arrow-right\" aria-hidden=\"true\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":301,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u2463Ubuntu - Postfix - Dovecot : SSL\/TSL security mail server setting, m\u1ed9t ph\u00e1t \u0103n ngay. - Experiment Log<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u2463Ubuntu - Postfix - Dovecot : SSL\/TSL security mail server setting, m\u1ed9t ph\u00e1t \u0103n ngay. - Experiment Log\" \/>\n<meta property=\"og:description\" content=\"M\u1ee5c l\u1ee5c Install v\u00e0 c\u1ea5u h\u00ecnh cho Postfix. 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