<p>Assalamualaikum Wr. Wb</p>
<p>Berawal ketika saya mendaftar layanan google cloud, saya mendapat credit sebesar $300 selama setahun, disini saya gunakan untuk membuat 1 buat VM Instance pada google cloud, VM tersebut saya install untuk anti spam email, setelah system up dan berjalan, saya testing port 25 dari internet, tapi kok tidak bisa yaa, saya coba baca-baca referensi ternyata secara default google cloud hanya open port 80, 443 serta 22 dari luar, untuk port sisanya ditutup/di block</p>
<blockquote>
<h3>Hosting Murah > <span style="color: #0000ff;"><a href="https://www.domainesia.com/?aff=2330" target="_blank" rel="noopener">Klik Disini</a></span></h3>
</blockquote>
<p>Untuk contoh dibawah ini kita akan coba open port 25 dari internet</p>
<p>Berikut langkah-langkah nya</p>
<h3><span style="color: #00ccff;">Login ke akun Google Cloud</span></h3>
<p>Klik pada bagian Product &#038; Services (bagian garis 3), kemudian scroll kebawah dan cari menu VPC Network | Firewall rules</p>
<p><img data-attachment-id="285" data-permalink="https://rizkypratama.id/blog/2017/08/31/konfigurasi-firewall-pada-google-cloud/screen-shot-2017-08-31-at-1-56-48-pm/" data-orig-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-1.56.48-PM.png?fit=944%2C684&;ssl=1" data-orig-size="944,684" data-comments-opened="1" data-image-meta="{";aperture";:";0";,";credit";:";";,";camera";:";";,";caption";:";";,";created_timestamp";:";0";,";copyright";:";";,";focal_length";:";0";,";iso";:";0";,";shutter_speed";:";0";,";title";:";";,";orientation";:";0";}" data-image-title="Screen Shot 2017-08-31 at 1.56.48 PM" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-1.56.48-PM.png?fit=300%2C217&;ssl=1" data-large-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-1.56.48-PM.png?fit=810%2C587&;ssl=1" class="wp-image-285 size-full aligncenter" src="https://rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-1.56.48-PM.png" alt="" width="944" height="684" /></p>
<p>Nanti akan tampil rule default nya, kemudian silakak klik bagian Create Firewall Rule</p>
<p><img data-attachment-id="286" data-permalink="https://rizkypratama.id/blog/2017/08/31/konfigurasi-firewall-pada-google-cloud/screen-shot-2017-08-31-at-2-02-22-pm/" data-orig-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.02.22-PM.png?fit=621%2C155&;ssl=1" data-orig-size="621,155" data-comments-opened="1" data-image-meta="{";aperture";:";0";,";credit";:";";,";camera";:";";,";caption";:";";,";created_timestamp";:";0";,";copyright";:";";,";focal_length";:";0";,";iso";:";0";,";shutter_speed";:";0";,";title";:";";,";orientation";:";0";}" data-image-title="Screen Shot 2017-08-31 at 2.02.22 PM" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.02.22-PM.png?fit=300%2C75&;ssl=1" data-large-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.02.22-PM.png?fit=621%2C155&;ssl=1" class="wp-image-286 size-full aligncenter" src="https://rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.02.22-PM.png" alt="" width="621" height="155" /></p>
<p>Kemudian akan muncul form untuk konfigurasi port apa yang akan diopen dari luar</p>
<p><img data-attachment-id="287" data-permalink="https://rizkypratama.id/blog/2017/08/31/konfigurasi-firewall-pada-google-cloud/screen-shot-2017-08-31-at-2-05-42-pm/" data-orig-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.05.42-PM.png?fit=506%2C437&;ssl=1" data-orig-size="506,437" data-comments-opened="1" data-image-meta="{";aperture";:";0";,";credit";:";";,";camera";:";";,";caption";:";";,";created_timestamp";:";0";,";copyright";:";";,";focal_length";:";0";,";iso";:";0";,";shutter_speed";:";0";,";title";:";";,";orientation";:";0";}" data-image-title="Screen Shot 2017-08-31 at 2.05.42 PM" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.05.42-PM.png?fit=300%2C259&;ssl=1" data-large-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.05.42-PM.png?fit=506%2C437&;ssl=1" class="wp-image-287 size-full aligncenter" src="https://rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.05.42-PM.png" alt="" width="506" height="437" /></p>
<pre>Name : isikan name rule nya 
 
Description : Isi dengan deskripsi terhadap rule yang akan dibuat 
 
Network : pilih default 
 
Priority : default nya 1000 
 
Direction of traffic : Ingress karena kita akan open port dari luar (incoming) 
 
Action on match : Allow</pre>
<p>Lalu scroll lagi ke bawah</p>
<p><img data-attachment-id="288" data-permalink="https://rizkypratama.id/blog/2017/08/31/konfigurasi-firewall-pada-google-cloud/screen-shot-2017-08-31-at-2-10-00-pm/" data-orig-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.10.00-PM.png?fit=492%2C371&;ssl=1" data-orig-size="492,371" data-comments-opened="1" data-image-meta="{";aperture";:";0";,";credit";:";";,";camera";:";";,";caption";:";";,";created_timestamp";:";0";,";copyright";:";";,";focal_length";:";0";,";iso";:";0";,";shutter_speed";:";0";,";title";:";";,";orientation";:";0";}" data-image-title="Screen Shot 2017-08-31 at 2.10.00 PM" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.10.00-PM.png?fit=300%2C226&;ssl=1" data-large-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.10.00-PM.png?fit=492%2C371&;ssl=1" class="wp-image-288 size-full aligncenter" src="https://rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.10.00-PM.png" alt="" width="492" height="371" /></p>
<pre>Targets : Pilih All instance in the network 
 
Source filter : pilih IP ranges 
 
Source IP ranges : Isi dengan 0.0.0.0/0 karena incoming berasal dari internet, yang artinya semua IP akan di dnat nantinya 
 
Second source filter : pilih none saja 
 
Protocols and ports : Pilih Specified protocols and ports karena hanya akan membuka port 25 saja 
 
Kemudian isikan dengan format tcp:25 
 
Note : jika ada beberapa port, bisa dipisah dengan tanda semicolon ;</pre>
<p>Kemudian klik create</p>
<p>Berikut hasil rule yang baru dibuat tadi</p>
<p><img data-attachment-id="290" data-permalink="https://rizkypratama.id/blog/2017/08/31/konfigurasi-firewall-pada-google-cloud/screen-shot-2017-08-31-at-2-46-22-pm/" data-orig-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.46.22-PM.png?fit=878%2C448&;ssl=1" data-orig-size="878,448" data-comments-opened="1" data-image-meta="{";aperture";:";0";,";credit";:";";,";camera";:";";,";caption";:";";,";created_timestamp";:";0";,";copyright";:";";,";focal_length";:";0";,";iso";:";0";,";shutter_speed";:";0";,";title";:";";,";orientation";:";0";}" data-image-title="Screen Shot 2017-08-31 at 2.46.22 PM" data-image-description="" data-image-caption="" data-medium-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.46.22-PM.png?fit=300%2C153&;ssl=1" data-large-file="https://i0.wp.com/rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.46.22-PM.png?fit=810%2C413&;ssl=1" class="alignnone wp-image-290 size-full" src="https://rizkypratama.id/wp-content/uploads/2017/08/Screen-Shot-2017-08-31-at-2.46.22-PM.png" alt="" width="878" height="448" /></p>
<p>sekarang silakan testing dari internet menggunakan telnet ke IP publik VM Instance yang ada pada google cloud, semestinya status nya connected</p>
<p>Cukup sekian artikel hari ini, semoga bermanfaat</p>
<div class="saboxplugin-wrap" itemtype="http://schema.org/Person" itemscope itemprop="author"><div class="saboxplugin-tab"><div class="saboxplugin-gravatar"><img src="https://rizkypratama.id/wp-content/uploads/2020/09/My-Photos.jpg" width="100" height="100" alt="My Photos" itemprop="image"></div><div class="saboxplugin-authorname"><a href="https://rizkypratama.id/blog/author/rizky/" class="vcard author" rel="author"><span class="fn">Rizky Pratama</span></a></div><div class="saboxplugin-desc"><div itemprop="description"><p>Rizky Pratama. Tinggal di Bekasi, Jawa Barat. Seorang IT di salah satu perusahaan IT. Pengguna Mac, Linux dan Windows<br />
Selain sebagai penulis di blog ini, saya juga penulis di blog saya yang lain, yaitu <a href="https://pratama.biz.id" target="_blank" rel="noopener noreferrer">https://pratama.biz.id</a></p>
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