OpenSSL: SSL\/TLS \uc554\ud638\ud654\ub97c \uc704\ud55c \ub3c4\uad6c<\/li>\n<\/ul>\n2. \ud658\uacbd \uc124\uc815<\/h2>\n
\uba54\uc77c \uc11c\ubc84\ub97c \uad6c\ucd95\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 \uc6b0\ubd84\ud22c \uc11c\ubc84\ub97c \uc900\ube44\ud558\uace0, \ud544\uc694\ud55c \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uc124\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \uc6b0\ubd84\ud22c 20.04 LTS \ubc84\uc804\uc744 \uae30\uc900\uc73c\ub85c \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
2.1 \uc6b0\ubd84\ud22c \uc11c\ubc84 \uc124\uce58<\/h3>\n
\uc6b0\ubd84\ud22c \uc11c\ubc84\ub97c \uc124\uce58\ud55c \ud6c4, \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \ud1b5\ud574 \uc2dc\uc2a4\ud15c\uc744 \uc5c5\ub370\uc774\ud2b8\ud569\ub2c8\ub2e4.<\/p>\n
sudo apt update && sudo apt upgrade -y<\/code><\/pre>\n2.2 Postfix \uc124\uce58<\/h3>\n
Postfix\ub97c \uc124\uce58\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc774\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n
sudo apt install postfix -y<\/code><\/pre>\n\uc124\uce58 \uacfc\uc815 \uc911\uc5d0 \uba54\uc77c \uc11c\ubc84 \uc720\ud615\uc744 \uc120\ud0dd\ud558\ub77c\ub294 \uba54\uc2dc\uc9c0\uac00 \ub098\ud0c0\ub098\uba74 “\uc778\ud130\ub137 \uc0ac\uc774\ud2b8”\ub97c \uc120\ud0dd\ud558\uace0, \uc2dc\uc2a4\ud15c\uc758 FQDN(Fully Qualified Domain Name)\uc744 \uc785\ub825\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, mail.example.com<\/code>\uacfc \uac19\uc774 \uc785\ub825\ud569\ub2c8\ub2e4.<\/p>\n2.3 Dovecot \uc124\uce58<\/h3>\n
Dovecot\uc744 \uc124\uce58\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n
sudo apt install dovecot-core dovecot-imapd dovecot-pop3d -y<\/code><\/pre>\n2.4 \uba54\uc77c \uc11c\ubc84 \uae30\ubcf8 \uc124\uc815<\/h3>\n
Postfix\uc640 Dovecot\uc758 \uc124\uc815 \ud30c\uc77c\uc744 \uc218\uc815\ud558\uc5ec \uae30\ubcf8\uc801\uc778 \uba54\uc77c \uc11c\ubc84 \uae30\ub2a5\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \/etc\/postfix\/main.cf<\/code> \ud30c\uc77c\uc744 \ud3b8\uc9d1\ud569\ub2c8\ub2e4.<\/p>\nsudo nano \/etc\/postfix\/main.cf<\/code><\/pre>\n\ud30c\uc77c \ub0b4\uc5d0 \ub2e4\uc74c\uacfc \uac19\uc740 \ub0b4\uc6a9\uc744 \ucd94\uac00\ud558\uac70\ub098 \uc218\uc815\ud569\ub2c8\ub2e4:<\/p>\n
\nmyhostname = mail.example.com\nmydomain = example.com\nmyorigin = \/etc\/mailname\nmydestination = $myhostname, localhost.$mydomain, localhost, $mydomain\nrelayhost =\nmynetworks = 127.0.0.0\/8\nmailbox_size_limit = 0\nrecipient_delimiter = +\ninet_interfaces = all\ninet_protocols = all\n<\/code><\/pre>\n2.5 Dovecot \uc124\uc815<\/h3>\n
\/etc\/dovecot\/dovecot.conf<\/code> \ud30c\uc77c\uc744 \uc218\uc815\ud558\uc5ec Dovecot\uc758 \uae30\ubcf8 \uc124\uc815\uc744 \uc644\ub8cc\ud569\ub2c8\ub2e4.<\/p>\nsudo nano \/etc\/dovecot\/dovecot.conf<\/code><\/pre>\n\ub0b4\uc6a9\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \uc218\uc815\ud569\ub2c8\ub2e4:<\/p>\n
\nmail_location = maildir:~\/Maildir\nservice imap {\n executable = imap-login\n}\nservice pop3 {\n executable = pop3-login\n}\n<\/code><\/pre>\n3. SSL \uc124\uc815\uc744 \ud1b5\ud55c \ubcf4\uc548 \uba54\uc77c \uc804\uc1a1<\/h2>\n
\uba54\uc77c \uc11c\ubc84\uc758 \ubcf4\uc548\uc744 \uac15\ud654\ud558\uae30 \uc704\ud574 SSL \uc778\uc99d\uc11c\ub97c \uc0ac\uc6a9\ud558\uc5ec SMTP \ubc0f IMAP\/POP3 \uc5f0\uacb0\uc744 \uc554\ud638\ud654\ud569\ub2c8\ub2e4. Let’s Encrypt\ub97c \uc774\uc6a9\ud558\uc5ec \ubb34\ub8cc SSL \uc778\uc99d\uc11c\ub97c \ubc1c\uae09\ubc1b\uace0 \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
3.1 Certbot \uc124\uce58<\/h3>\n
SSL \uc778\uc99d\uc11c\ub97c \ubc1c\uae09\ubc1b\uae30 \uc704\ud574 Certbot\uc744 \uc124\uce58\ud569\ub2c8\ub2e4.<\/p>\n
sudo apt install certbot python3-certbot-nginx -y<\/code><\/pre>\n3.2 SSL \uc778\uc99d\uc11c \ubc1c\uae09<\/h3>\n
\ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec Certbot\uc73c\ub85c SSL \uc778\uc99d\uc11c\ub97c \ubc1c\uae09\ubc1b\uc2b5\ub2c8\ub2e4. example.com<\/strong>\uc740 \uc0ac\uc6a9\ud558\uace0\uc790 \ud558\ub294 \ub3c4\uba54\uc778 \uc774\ub984\uc73c\ub85c \uad50\uccb4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\nsudo certbot certonly --standalone -d mail.example.com<\/code><\/pre>\n\uc778\uc99d\uc11c \ubc1c\uae09\uc774 \uc644\ub8cc\ub418\uba74 \uc778\uc99d\uc11c\uc758 \uc704\uce58\ub294 \/etc\/letsencrypt\/live\/mail.example.com\/fullchain.pem<\/code>\uc640 \/etc\/letsencrypt\/live\/mail.example.com\/privkey.pem<\/code>\uc785\ub2c8\ub2e4.<\/p>\n3.3 Postfix SSL \uc124\uc815<\/h3>\n
Postfix\uc5d0 SSL\uc744 \uc124\uc815\ud558\uae30 \uc704\ud574, \uc544\ub798\uc640 \uac19\uc774 main.cf<\/code> \ud30c\uc77c\uc744 \uc218\uc815\ud569\ub2c8\ub2e4.<\/p>\nsudo nano \/etc\/postfix\/main.cf<\/code><\/pre>\n\uc544\ub798\uc640 \uac19\uc740 \uc904\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4:<\/p>\n
\nsmtpd_tls_cert_file=\/etc\/letsencrypt\/live\/mail.example.com\/fullchain.pem\nsmtpd_tls_key_file=\/etc\/letsencrypt\/live\/mail.example.com\/privkey.pem\nsmtpd_use_tls=yes\nsmtpd_tls_security_level=may\n<\/code><\/pre>\n3.4 Dovecot SSL \uc124\uc815<\/h3>\n
Dovecot\uc5d0\uc11c\ub3c4 SSL\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \/etc\/dovecot\/conf.d\/10-ssl.conf<\/code> \ud30c\uc77c\uc744 \uc218\uc815\ud569\ub2c8\ub2e4.<\/p>\nsudo nano \/etc\/dovecot\/conf.d\/10-ssl.conf<\/code><\/pre>\n\uc544\ub798\uc640 \uac19\uc740 \ub0b4\uc6a9\uc744 \ucd94\uac00\ud558\uac70\ub098 \uc218\uc815\ud569\ub2c8\ub2e4:<\/p>\n
\nssl = required\nssl_cert = <\/code><\/pre>\n3.5 \uc11c\ube44\uc2a4 \uc7ac\uc2dc\uc791<\/h3>\n
\uc124\uc815\uc774 \uc644\ub8cc\ub418\uba74 Postfix\uc640 Dovecot \uc11c\ube44\uc2a4\ub97c \uc7ac\uc2dc\uc791\ud569\ub2c8\ub2e4.<\/p>\n
\nsudo systemctl restart postfix\nsudo systemctl restart dovecot\n<\/code><\/pre>\n4. \uba54\uc77c \ud074\ub77c\uc774\uc5b8\ud2b8 \uc124\uc815<\/h2>\n
\uc774\uc81c \uba54\uc77c \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc124\uc815\ud558\uc5ec \uba54\uc77c \uae30\ub2a5\uc744 \ud14c\uc2a4\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c Outlook\uc774\ub098 Thunderbird\uc640 \uac19\uc740 \uba54\uc77c \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud074\ub77c\uc774\uc5b8\ud2b8 \uc124\uc815\uc758 \uc608\uc2dc\uc785\ub2c8\ub2e4.<\/p>\n
\n- IMAP \uc124\uc815:<\/li>\n
\n- \uc11c\ubc84: mail.example.com<\/li>\n
- \ud3ec\ud2b8: 993<\/li>\n
- \ubcf4\uc548: SSL\/TLS<\/li>\n
- \uc0ac\uc6a9\uc790 \uc774\ub984: \uc0ac\uc6a9\uc790\uc774\uba54\uc77c@example.com<\/li>\n
- \ube44\ubc00\ubc88\ud638: \uc0ac\uc6a9\uc790 \ube44\ubc00\ubc88\ud638<\/li>\n<\/ul>\n
- SMTP \uc124\uc815:<\/li>\n
\n- \uc11c\ubc84: mail.example.com<\/li>\n
- \ud3ec\ud2b8: 587<\/li>\n
- \ubcf4\uc548: STARTTLS<\/li>\n
- \uc0ac\uc6a9\uc790 \uc774\ub984: \uc0ac\uc6a9\uc790\uc774\uba54\uc77c@example.com<\/li>\n
- \ube44\ubc00\ubc88\ud638: \uc0ac\uc6a9\uc790 \ube44\ubc00\ubc88\ud638<\/li>\n<\/ul>\n<\/ul>\n
5. \uacb0\ub860<\/h2>\n
\uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \uc6b0\ubd84\ud22c \uc11c\ubc84\uc5d0\uc11c \uba54\uc77c \uc11c\ubc84\ub97c \uad6c\ucd95\ud558\uace0, SSL\uc744 \uc774\uc6a9\ud55c \ubcf4\uc548 \uba54\uc77c \uc804\uc1a1 \uc124\uc815\uc744 \uc124\uba85\ud588\uc2b5\ub2c8\ub2e4. \uba54\uc77c \uc11c\ubc84\uc758 \ub2e4\uc591\ud55c \uc124\uc815\uacfc \ubcf4\uc548 \uac15\ud654\ub294 \uc0ac\uc6a9\uc790\uc758 \ud544\uc694\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc73c\uba70, \ucd94\uac00\uc801\uc778 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub9de\ucdb0 \uc124\uc815\uc744 \ubcc0\uacbd\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc774\uba54\uc77c \ud1b5\uc2e0\uc758 \ubcf4\uc548\uc744 \ubcf4\uc7a5\ud558\uace0, \uac1c\uc778 \ubc0f \uae30\uc5c5\uc758 \uac00\uc6a9\uc131\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
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