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<h1><a class="header" href="#ss8" id="ss8">ss(8)</a></h1>
<pre><code class="language-markdown">ss [option] [filter]
</code></pre>
<pre><code class="language-markdown">[option]
-p ..... Show process using socket
-l ..... Show sockets in listening state
-4/-6 .. Show IPv4/6 sockets
-x ..... Show unix sockets
-n ..... Show numeric ports (no resolve)
-O ..... Oneline output per socket
</code></pre>
<pre><code class="language-markdown">[filter]
dport/sport PORT .... Filter for destination/source port
dst/src ADDR ........ Filter for destination/source address
and/or .............. Logic operator
==/!= ............... Comparison operator
(EXPR) .............. Group exprs
</code></pre>
<h1><a class="header" href="#examples" id="examples">Examples</a></h1>
<p>Show all tcp IPv4 sockets connecting to port <code>443</code>:</p>
<pre><code class="language-markdown">ss -4 'dport 443'
</code></pre>
<p>Show all tcp IPv4 sockets that don't connect to port <code>443</code> or connect to address <code>1.2.3.4</code>.</p>
<pre><code class="language-markdown">ss -4 'dport != 443 or dst 1.2.3.4'
</code></pre>
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