{"id":1907,"date":"2019-03-13T07:18:27","date_gmt":"2019-03-13T00:18:27","guid":{"rendered":"https:\/\/www.linuxid.net\/post\/?p=1907"},"modified":"2025-03-28T22:41:13","modified_gmt":"2025-03-28T15:41:13","slug":"cara-mudah-mengganti-port-ssh-di-linux","status":"publish","type":"post","link":"https:\/\/www.linuxid.net\/post\/cara-mudah-mengganti-port-ssh-di-linux\/","title":{"rendered":"Cara Mudah Mengganti Port SSH di Linux"},"content":{"rendered":"<p>Secara default, SSH listen pada port 22. Mengubah port SSH default merupakan lapisan keamanan tambahan ke server Anda dengan mengurangi risiko serangan otomatis (<a href=\"https:\/\/www.beritabebas.com\/definisi\/brute-force-cracking\/\"><em>brute force<\/em><\/a>).<\/p>\n<p>Selain mengubah port 22 untuk akses SSH, kita juga akan mengatur SSH server untuk memungkinkan akses ke port 22 hanya dari host tertentu.<\/p>\n<p>Tutorial ini menjelaskan cara mengubah port SSH default di Linux. Kami juga akan menunjukkan kepada Anda cara mengkonfigurasi firewall untuk membuka port dan memungkinkan akses ke port SSH baru.<\/p>\n<p>Kami juga sarankan Anda untuk menguji setiap tutorial atau panduan apapun yang ada di Internet di virtual machine (vmware atau virtualbox) sebelum menerapkan ke server produksi, agar tidak mengacaukan sistem yang aktif berjalan ketika ada kesalahan.<\/p>\n<p>Anda bisa melihat cara installasi VMware di\u00a0<a href=\"https:\/\/www.linuxid.net\/post\/tutorial-install-vmware-workstation-player-di-ubuntu-18-04\/\">Ubuntu<\/a> dan\u00a0<a href=\"https:\/\/www.linuxid.net\/post\/cara-install-vmware-workstation-player-di-centos-7\/\">CentOS.<\/a> Untuk cara installasi VirtualBox tersedia panduan untuk\u00a0<a href=\"https:\/\/www.linuxid.net\/post\/tutorial-cara-install-virtualbox-di-ubuntu-18-04\/\">Ubuntu<\/a>,\u00a0<a href=\"https:\/\/www.linuxid.net\/post\/cara-install-oracle-virtualbox-6-0-di-fedora-linux\/\">Fedora,<\/a>\u00a0dan\u00a0<a href=\"https:\/\/www.linuxid.net\/post\/cara-install-oracle-virtualbox-di-centos-7\/\">CentOS<\/a><\/p>\n<h2>Mengubah Port SSH<\/h2>\n<p>Ikuti langkah-langkah di bawah ini untuk mengubah Port SSH di sistem Linux Anda:<\/p>\n<h3>1. Memilih Nomor Port Baru<\/h3>\n<p>Di Linux, nomor port di bawah 1024 dicadangkan untuk layanan \u201cwell-known\u201d dan hanya bisa di lakukan oleh root. Meskipun Anda dapat menggunakan port dalam rentang 1-1024 untuk layanan SSH, untuk menghindari masalah dengan alokasi port di masa mendatang, disarankan untuk memilih port di atas 1024.<\/p>\n<p>Dalam contoh ini akan mengubah port SSH ke 5522, Anda dapat memilih port manapun yang Anda suka.<\/p>\n<h3>2. Menyesuaikan Pengaturan Firewall<\/h3>\n<p>Sebelum mengubah port SSH, pertama Anda harus menyesuaikan ruleset di firewall untuk mengizinkan lalu lintas di port SSH yang baru.<\/p>\n<p>Jika Anda menggunakan UFW, alat konfigurasi firewall default untuk Ubuntu jalankan perintah berikut untuk membuka port SSH baru:<\/p>\n<pre>sudo ufw allow 5522\/tcp<\/pre>\n<p>Di CentOS alat manajemen firewall default adalah FirewallD. Untuk membuka port baru jalankan perintah berikut:<\/p>\n<pre>sudo firewall-cmd --permanent --zone=public --add-port=5522\/tcp&#13;\nsudo firewall-cmd --reload<\/pre>\n<p>Pengguna CentOS juga perlu menyesuaikan aturan SELinux untuk memungkinkan port SSH baru:<\/p>\n<pre>sudo semanage port -a -t ssh_port_t -p tcp 5522<\/pre>\n<p>Jika Anda menggunakan iptables sebagai firewall Anda, perintah berikut ini akan membuka port SSH baru:<\/p>\n<pre>sudo iptables -A INPUT -p tcp --dport 5522 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT<\/pre>\n<h3>3. Konfigurasi SSH<\/h3>\n<p>Buka file konfigurasi SSH <code>\/etc\/ssh\/sshd_config<\/code> dengan editor teks Anda:<\/p>\n<pre>sudo nano \/etc\/ssh\/sshd_config<\/pre>\n<p>Cari baris yang dimulai dengan <code>Port 22<\/code>. Dalam kebanyakan kasus, baris ini akan dimulai dengan simbol hash <code>#<\/code>. Hapus hash <code>#<\/code> dan masukkan nomor port SSH baru yang akan digunakan sebagai ganti port SSH standar 22.<\/p>\n<pre>Port 5522<\/pre>\n<p>Berhati-hatilah saat memodifikasi file konfigurasi SSH. Konfigurasi yang salah dapat menyebabkan layanan SSH gagal untuk memulai.<\/p>\n<p>Setelah selesai, simpan file dan mulai ulang layanan SSH untuk menerapkan perubahan:<\/p>\n<pre>sudo systemctl restart ssh<\/pre>\n<p>Di CentOS layanan ssh bernama <code>sshd<\/code>:<\/p>\n<pre>sudo systemctl restart sshd<\/pre>\n<p>Untuk memverifikasi bahwa daemon SSH listen pada port baru 5522 ketik:<\/p>\n<pre>ss -an | grep 5522<\/pre>\n<p>Output akan terlihat sebagai berikut<\/p>\n<pre>tcp   LISTEN      0        128 0.0.0.0:55220.0.0.0:*&#13;\ntcp   ESTAB       0        0      192.168.121.108:5522     192.168.121.1:57638&#13;\ntcp   LISTEN      0        128    [::]:5522   [::]:*<\/pre>\n<h2>Menggunakan Port SSH Baru<\/h2>\n<p>Sekarang setelah Anda mengubah port SSH saat masuk ke mesin jarak jauh, Anda harus menentukan port baru.<\/p>\n<p>Gunakan opsi <code>-p &lt;port_number&gt;<\/code> dan tentukan port:<\/p>\n<pre>ssh -p 5522 username@remote_host_or_ip<\/pre>\n<h2>Kesimpulan<\/h2>\n<p>Dalam tutorial ini, Anda telah belajar cara mengubah port SSH di server Linux Anda. Anda mungkin juga ingin mengatur <a href=\"https:\/\/www.linuxid.net\/post\/cara-konfigurasi-login-ssh-tanpa-password\/\">otentikasi berbasis kunci SSH<\/a> dan terhubung ke server Linux tanpa memasukkan kata sandi.<\/p>\n<p>Jika Anda secara teratur terhubung ke beberapa sistem, Anda dapat menyederhanakan alur kerja Anda dengan mendefinisikan semua koneksi Anda dalam file konfigurasi SSH.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Secara default, SSH listen pada port 22. Mengubah port SSH default merupakan lapisan keamanan tambahan&hellip;<\/p>\n","protected":false},"author":2,"featured_media":1908,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[71,72,167],"class_list":["post-1907","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-terminal","tag-file-system","tag-linux-terminal","tag-ubuntu-server"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara Mudah Mengganti Port SSH di Linux - 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-mudah-mengganti-port-ssh-di-linux\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Mudah Mengganti Port SSH di Linux - Linuxid\" \/>\n<meta property=\"og:description\" content=\"Secara default, SSH listen pada port 22. 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