{"id":2117,"date":"2025-04-18T16:08:12","date_gmt":"2025-04-18T09:08:12","guid":{"rendered":"https:\/\/www.linuxid.net\/post\/?p=2117"},"modified":"2025-04-18T16:08:12","modified_gmt":"2025-04-18T09:08:12","slug":"cara-install-ssl-gratis-lets-encrypt-di-nginx-debian-9","status":"publish","type":"post","link":"https:\/\/www.linuxid.net\/post\/cara-install-ssl-gratis-lets-encrypt-di-nginx-debian-9\/","title":{"rendered":"Cara Install SSL Gratis Let\u2019s Encrypt di Nginx Debian 9"},"content":{"rendered":"<p>Seiring berkembangnya teknologi, dan juga semakin banyaknya kejahatan di Internet. Sertifikat SSL menjadi menu wajib yang harus dipenuhi oleh para pengembang. Tentu kita tidak ingin membahayakan lalu lintas menuju website kita. Seorang\u00a0<a href=\"https:\/\/www.beritabebas.com\/definisi\/hacker\/\">hacker<\/a>\u00a0bisa saja\u00a0<a href=\"https:\/\/www.beritabebas.com\/definisi\/eavesdropping\/\">menguping<\/a>\u00a0atau\u00a0<a href=\"https:\/\/www.beritabebas.com\/definisi\/active-man-in-the-middle-attack-mitm\/\">mencegat transmisi<\/a>antara pengguna dan server.<\/p>\n<p>Let\u2019s Encrypt adalah\u00a0certificate authority terbuka dan gratis\u00a0 yang dikembangkan oleh\u00a0<em>Internet Security Research Group<\/em>(ISRG). Sertifikat yang dikeluarkan oleh Let\u2019s Encrypt dipercaya oleh hampir semua browser hari ini.<\/p>\n<p>Dalam tutorial ini, kami akan memberikan petunjuk langkah demi langkah tentang cara mengamankan Nginx Anda dengan Let\u2019s Encrypt menggunakan certbot\u00a0tool di Debian 9.\u00a0Kami juga akan menunjukkan cara mengkonfigurasi Nginx untuk menggunakan sertifikat SSL dan mengaktifkan HTTP \/ 2.<\/p>\n<h2>Prasyarat<\/h2>\n<p>Pastikan Anda telah memenuhi prasyarat berikut sebelum melanjutkan dengan tutorial ini:<\/p>\n<ul>\n<li>Memiliki nama domain yang menunjuk ke IP server publik. Dalam tutorial ini kita akan menggunakan domain\u00a0<code>example.com<\/code>.<\/li>\n<li>Masuk sebagai pengguna biasa <a href=\"https:\/\/www.linuxid.net\/24641\/cara-membuat-user-sudo-di-debian-linux\/\">dengan hak akses sudo.<\/a><\/li>\n<li>Memiliki instal Nginx yang terkonfigurasi dengan\u00a0<a href=\"https:\/\/www.linuxid.net\/24644\/cara-install-dan-konfigurasi-nginx-di-debian-9\/\">mengikuti instruksi ini<\/a><\/li>\n<li>Memiliki pengaturan server block untuk domain. Anda dapat\u00a0<a href=\"https:\/\/www.linuxid.net\/25076\/tutorial-penggunaan-server-blocks-nginx-di-ubuntu-18-04\/\">mengikuti instruksi ini<\/a>\u00a0untuk perincian tentang cara membuatnya.<\/li>\n<\/ul>\n<h2>Cara Instal Certbot di Debian 9<\/h2>\n<p>Certbot adalah alat berfitur lengkap dan mudah digunakan yang dapat mengotomatiskan tugas untuk mendapatkan dan memperbarui sertifikat SSL Let\u2019s Encrypt dan konfigurasi server web untuk menggunakan sertifikat. Paket certbot termasuk dalam\u00a0repositori default Debian.<\/p>\n<p>Perbarui daftar paket dan instal paket certbot:<\/p>\n<pre>sudo apt update\r\nsudo apt install certbot<\/pre>\n<h2>Membuat Sertifikat Dh (Diffie-Hellman)<\/h2>\n<p>Diffie\u2013Hellman key exchange (DH) adalah metode pertukaran kunci kriptografi yang aman di saluran komunikasi yang tidak aman. Kita akan membuat key exchange DH 2048 bit baru untuk memperkuat keamanan:<\/p>\n<pre>sudo openssl dhparam -out \/etc\/ssl\/certs\/dhparam.pem 2048<\/pre>\n<p>Anda juga dapat mengubah ukuran hingga 4096 bit, tetapi dalam hal ini, pembuatannya dapat memakan waktu lebih dari 30 menit tergantung pada kemampuan pemrosesan sistem Anda.<\/p>\n<h2>Memperoleh sertifikat SSL\u00a0Let\u2019s Encrypt<\/h2>\n<p>Untuk memperoleh sertifikat SSL untuk domain, kita akan menggunakan plugin Webroot yang berfungsi dengan membuat file sementara untuk memvalidasi domain yang diminta dalam direktori\u00a0<code>${webroot-path}\/.well-known\/acme-challenge<\/code>. Server Let\u2019s Encrypt membuat permintaan HTTP ke file sementara untuk memvalidasi bahwa domain yang diminta menyelesaikan ke server tempat certbot berjalan.<\/p>\n<p>Untuk membuatnya lebih sederhana, kita akan memetakan semua permintaan HTTP untuk\u00a0<code>.well-known\/acme-challenge<\/code>ke satu direktori,\u00a0<code>\/var\/lib\/letsencrypt<\/code>.<\/p>\n<p>Perintah berikut akan\u00a0<a href=\"https:\/\/www.linuxid.net\/25099\/membuat-direktori-di-linux-terminal-menggunakan-mkdir\">membuat direktori<\/a>\u00a0dan membuatnya writable oleh Nginx server.<\/p>\n<pre>mkdir -p \/var\/lib\/letsencrypt\/.well-known\r\nchgrp www-data \/var\/lib\/letsencrypt\r\nchmod g+s \/var\/lib\/letsencrypt<\/pre>\n<p>Untuk menghindari duplikasi kode, buat dua snippet berikut yang akan kita sertakan dalam semua file server blok Nginx.<\/p>\n<p>Buka teks editor dan buat snippet\u00a0<code>letsencrypt.conf<\/code>:<\/p>\n<pre>sudo nano \/etc\/nginx\/snippets\/letsencrypt.conf<\/pre>\n<pre>location ^~ \/.well-known\/acme-challenge\/ {\r\n  allow all;\r\n  root \/var\/lib\/letsencrypt\/;\r\n  default_type \"text\/plain\";\r\n  try_files $uri =404;\r\n}<\/pre>\n<p>Buat snippet\u00a0<code>ssl.conf<\/code>\u00a0yang mencakup chipper yang direkomendasikan oleh\u00a0<a href=\"https:\/\/mozilla.github.io\/server-side-tls\/ssl-config-generator\/\" target=\"_blank\" rel=\"noopener\">Mozilla<\/a>, memungkinkan OCSP Stapling, HTTP Strict Transport Security (HSTS) dan memberlakukan beberapa header HTTP yang berfokus pada keamanan.<\/p>\n<pre>sudo nano \/etc\/nginx\/snippets\/ssl.conf<\/pre>\n<pre>ssl_dhparam \/etc\/ssl\/certs\/dhparam.pem;\r\n\r\nssl_session_timeout 1d;\r\nssl_session_cache shared:SSL:50m;\r\nssl_session_tickets off;\r\n\r\nssl_protocols TLSv1 TLSv1.1 TLSv1.2;\r\nssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';\r\nssl_prefer_server_ciphers on;\r\n\r\nssl_stapling on;\r\nssl_stapling_verify on;\r\nresolver 8.8.8.8 8.8.4.4 valid=300s;\r\nresolver_timeout 30s;\r\n\r\nadd_header Strict-Transport-Security \"max-age=15768000; includeSubdomains; preload\";\r\nadd_header X-Frame-Options SAMEORIGIN;\r\nadd_header X-Content-Type-Options nosniff;<\/pre>\n<p>Setelah snippets dibuat, buka server block domain dan sertakan snippet\u00a0<code>letsencrypt.conf<\/code>\u00a0seperti yang ditunjukkan di bawah ini:<\/p>\n<pre>sudo nano \/etc\/nginx\/sites-available\/example.com<\/pre>\n<pre>server {\r\n  listen 80;\r\n  server_name example.com www.example.com;\r\n\r\n<span class=\"hl\">  include snippets\/letsencrypt.conf;\r\n}<\/span><\/pre>\n<p>Untuk mengaktifkan file server block baru, kita perlu membuat\u00a0<a href=\"https:\/\/www.linuxid.net\/25102\/cara-membuat-symbolic-links-menggunakan-perintah-ln\/\">tautan simbolik<\/a>\u00a0dari file ke direktori\u00a0<code>sites-enabled<\/code>, yang merupakan folder pertama yang dibaca oleh Nginx saat startup:<\/p>\n<pre>sudo ln -s \/etc\/nginx\/sites-available\/example.com \/etc\/nginx\/sites-enabled\/<\/pre>\n<p><a href=\"https:\/\/www.linuxid.net\/24715\/perintah-dasar-untuk-manajemen-nginx-services\/\">Restart layanan Nginx<\/a>\u00a0agar perubahan diterapkan:<\/p>\n<pre>sudo systemctl restart nginx<\/pre>\n<p>Anda sekarang dapat menjalankan Certbot dengan plugin webroot dan mendapatkan file sertifikat SSL dengan menerbitkan:<\/p>\n<pre>sudo certbot certonly --agree-tos --email admin@example.com --webroot -w \/var\/lib\/letsencrypt\/ -d example.com -d www.example.com<\/pre>\n<p>Jika sertifikat SSL berhasil diperoleh, certbot akan mencetak pesan berikut:<\/p>\n<pre>IMPORTANT NOTES:\r\n - Congratulations! Your certificate and chain have been saved at:\r\n   \/etc\/letsencrypt\/live\/example.com\/fullchain.pem\r\n   Your key file has been saved at:\r\n   \/etc\/letsencrypt\/live\/example.com\/privkey.pem\r\n   Your cert will expire on 2019-03-22. 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 - Your account credentials have been saved in your Certbot\r\n   configuration directory at \/etc\/letsencrypt. You should make a\r\n   secure backup of this folder now. This configuration directory will\r\n   also contain certificates and private keys obtained by Certbot so\r\n   making regular backups of this folder is ideal.\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<\/pre>\n<p>Sekarang Anda memiliki file sertifikat, langkah selanjutnya adalah mengedit server block untuk domain sebagai berikut:<\/p>\n<pre>sudo nano \/etc\/nginx\/sites-available\/example.com<\/pre>\n<pre>server {\r\n    listen 80;\r\n    server_name <span style=\"color: #ff00ff;\">example.com www.example.com<\/span> ;\r\n\r\n    include snippets\/letsencrypt.conf;\r\n    return 301 https:\/\/$host$request_uri;\r\n}\r\n\r\nserver {\r\n    listen 443 ssl http2;\r\n    server_name <span style=\"color: #ff00ff;\">www.example.com<\/span>;\r\n\r\n    ssl_certificate \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/fullchain.pem;\r\n    ssl_certificate_key \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/privkey.pem;\r\n    ssl_trusted_certificate \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/chain.pem;\r\n    include snippets\/ssl.conf;\r\n    include snippets\/letsencrypt.conf;\r\n\r\n    return 301 https:\/\/<span style=\"color: #ff00ff;\">example.com<\/span>$request_uri;\r\n}\r\n\r\nserver {\r\n    listen 443 ssl http2;\r\n    server_name <span style=\"color: #ff00ff;\">example.com<\/span>;\r\n\r\n    ssl_certificate \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/fullchain.pem;\r\n    ssl_certificate_key \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/privkey.pem;\r\n    ssl_trusted_certificate \/etc\/letsencrypt\/live\/<span style=\"color: #ff00ff;\">example.com<\/span>\/chain.pem;\r\n    include snippets\/ssl.conf;\r\n    include snippets\/letsencrypt.conf;\r\n\r\n    # . . . other code\r\n}<\/pre>\n<p>Dengan konfigurasi di atas kita memaksa menggunakan HTTPS.<\/p>\n<p>Muat ulang layanan Nginx agar perubahan diterapkan:<\/p>\n<pre>sudo systemctl reload nginx<\/pre>\n<h2>Perpanjang Otomatis Sertifikat SSL\u00a0Let\u2019s Encrypt<\/h2>\n<p>Sertifikat Let\u2019s Encrypt\u2019s berlaku selama 90 hari. Untuk secara otomatis memperbarui sertifikat sebelum habis masa berlakunya, paket certbot membuat cronjob yang berjalan dua kali sehari dan secara otomatis akan memperbarui sertifikat apa pun dalam kurun waktu 30 hari sebelum masa berlaku sertifikat berakhir.<\/p>\n<p>Karena kita menggunakan plug-in webroot certbot setelah sertifikat diperbarui, kita juga harus memuat ulang layanan nginx. Tambahkan\u00a0<code>--renew-hook \"systemctl reload nginx\"<\/code>\u00a0ke file\u00a0<code>\/etc\/cron.d\/certbot<\/code>\u00a0sehingga terlihat seperti ini:<\/p>\n<pre>sudo nano \/etc\/cron.d\/certbot<\/pre>\n<pre>0 *\/12 * * * root test -x \/usr\/bin\/certbot -a \\! -d \/run\/systemd\/system &amp;&amp; perl -e 'sleep int(rand(3600))' &amp;&amp; certbot -q renew --renew-hook \"systemctl reload nginx\"<\/pre>\n<p>Untuk menguji proses pembaruan, Anda dapat menggunakan perintah berikut :<\/p>\n<pre>sudo certbot renew --dry-run<\/pre>\n<p>Jika tidak ada kesalahan, berarti proses pembaruan berhasil.<\/p>\n<h2>Kesimpulan<\/h2>\n<p>Dalam tutorial ini, Anda menggunakan klien Let\u2019s Encrypt, certbot untuk mengunduh sertifikat SSL untuk domain. Anda juga telah membuat snippets untuk Nginx untuk menghindari duplikasi kode dan mengonfigurasi Nginx untuk menggunakan sertifikat. Di akhir tutorial Anda telah menyiapkan cronjob untuk perpanjangan sertifikat otomatis.<\/p>\n<p>Jika ingin mempelajari lebih lanjut tentang cara menggunakan Certbot,\u00a0<a href=\"https:\/\/certbot.eff.org\/docs\/\" target=\"_blank\" rel=\"noopener\">dokumentasi Certbot<\/a>\u00a0adalah titik awal yang baik.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seiring berkembangnya teknologi, dan juga semakin banyaknya kejahatan di Internet. Sertifikat SSL menjadi menu wajib&hellip;<\/p>\n","protected":false},"author":2,"featured_media":2118,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[92,28],"class_list":["post-2117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-debian","tag-lets-encrypt","tag-nginx"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara Install SSL Gratis Let\u2019s Encrypt di Nginx Debian 9 - Linuxid<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/linuxid.net\/post\/cara-install-ssl-gratis-lets-encrypt-di-nginx-debian-9\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Install SSL Gratis Let\u2019s Encrypt di Nginx Debian 9 - Linuxid\" \/>\n<meta property=\"og:description\" content=\"Seiring berkembangnya teknologi, dan juga semakin banyaknya kejahatan di Internet. 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