h4(#fromsource). *Option 2: Install from source*
-Install prerequisites for Debian 7 or 8:
+Install prerequisites for Debian 8:
<notextile>
<pre><code><span class="userinput">sudo apt-get install \
libssl-dev libxslt1.1 zlib1g-dev
</span></code></pre></notextile>
-Install prerequisites for CentOS 6 or 7:
+Install prerequisites for CentOS 7:
<notextile>
<pre><code><span class="userinput">sudo yum install \