<h1>Docker Networking Tip #1: Use Docker Networks 💻</h1>
Docker provides built-in networks to enhance security and communication between containers. When you define custom networks:
<pre><code class="language-sh">docker network create my_network
</code></pre>
You can then connect containers securely without exposing ports unnecessarily:
<pre><code class="language-yaml">networks:
 - my_network
</code></pre>
<h1>Docker Networking Tip #2: Bind Ports Securely 🚨</h1>
When using Docker in a VPS, you should never expose ports directly like this:
<pre><code class="language-yaml">ports:
 - &quot;3000:3000&quot;
</code></pre>
Doing this can expose your app beyond your server’s firewall. Always bind to <code>127.0.0.1</code> for better security:
<pre><code class="language-yaml">ports:
 - &quot;127.0.0.1:3000:3000&quot;
</code></pre>
Recently, we addressed small security edge cases like these, check out our latest article on <a href="https://evolveasdev.com/blogs/guide/the-ultimate-guide-for-deploying-go-applications-to-production" target="_blank" rel="noopener nofollow">Deploying Go Applications to Production</a>.

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evolvedev

Enhance Docker security by using built-in networks to manage container communication and avoiding direct port exposure. Bind ports to `127.0.0.1` for improved security when running Docker on a VPS.

Quick Docker Security Tips for Developers

Nice tip. thanks for sharing 🤍