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    <title>Andrey Ryabinin — Portfolio</title>
    <link>http://ryabinin.pro/en/</link>
    <description>Recent content on Andrey Ryabinin — Portfolio</description>
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      <title>GLPI: From Chaos to Transparent ITIL</title>
      <link>http://ryabinin.pro/en/projects/project-glpi/</link>
      <pubDate>Mon, 10 Aug 2026 00:00:00 +0000</pubDate>
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      <description>IT Infrastructure Management.</description>
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    <item>
      <title>Redmine: Unified Management Center for Projects, Tasks, and Documentation</title>
      <link>http://ryabinin.pro/en/projects/project-redmine/</link>
      <pubDate>Mon, 10 Aug 2026 00:00:00 +0000</pubDate>
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      <description>Project management systems. Document management.</description>
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      <title>About</title>
      <link>http://ryabinin.pro/en/about/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>http://ryabinin.pro/en/about/</guid>
      <description>&lt;p&gt;Hello! 👋 I am a System Administrator and Infrastructure Engineer focused on building, securing, and automating corporate IT environments. My primary goal is to ensure that business infrastructure operates reliably, predictably, and securely.
I specialize in deploying independent &lt;strong&gt;on-premise solutions&lt;/strong&gt; that help companies retain full control over their sensitive data and optimize IT operational costs.
Ready for complex technical challenges, auditing current IT infrastructure, and remote collaboration.&lt;/p&gt;
&lt;h2 id=&#34;skills&#34;&gt;Skills&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;&lt;strong&gt;🖥 Operating Systems:&lt;/strong&gt; Linux (Ubuntu, Debian, Rocky Linux), Windows Server&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;☁️ Virtualization &amp;amp; Containers:&lt;/strong&gt; Proxmox VE, VMware, Hyper-V, Docker&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;🌐 Networking:&lt;/strong&gt; VLAN segmentation, Aruba HPE, Zyxel, VPN (OpenVPN/IPsec), pfSense, firewalld, UFW&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;🛡 Information Security:&lt;/strong&gt; DLP systems, CrowdSec, Fail2ban, Enterprise Endpoint Security (Kaspersky, Symantec)&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;🏗 Infrastructure:&lt;/strong&gt; Active Directory, DNS, DHCP, GPO, WSUS, RADIUS, PKI&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;🕸 Web Servers &amp;amp; Databases:&lt;/strong&gt; Nginx, Apache (LAMP / LEMP stacks), PostgreSQL, MySQL, MS SQL Server&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;🏢 Corporate Services (On-Premise):&lt;/strong&gt; Nextcloud, Mailcow, Mattermost&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;📊 Monitoring:&lt;/strong&gt; Zabbix, Grafana, Prometheus&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;⚙️ Automation &amp;amp; Version Control:&lt;/strong&gt; Bash, PowerShell, Ansible, Git, GitHub&lt;/li&gt;
&lt;li&gt;&lt;strong&gt;💾 Backup &amp;amp; High Availability:&lt;/strong&gt; HA Clusters, Acronis, Proxmox Backup Server, Custom scripting&lt;/li&gt;
&lt;/ul&gt;
&lt;h2 id=&#34;certificates&#34;&gt;Certificates&lt;/h2&gt;
&lt;ul&gt;
&lt;li&gt;&lt;a href=&#34;https://coursera.org/verify/professional-cert/7F663DVPYJ92&#34;&gt;Akamai Network Engineering&lt;/a&gt; — Akamai Technical Academy / Coursera, 2024&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;https://coursera.org/verify/professional-cert/FK636VZV60AM&#34;&gt;IBM DevOps and Software Engineering&lt;/a&gt; — IBM / Coursera, 2024&lt;/li&gt;
&lt;li&gt;&lt;a href=&#34;https://coursera.org/verify/ZK7NR8EE226H&#34;&gt;Fundamentals of Red Hat Enterprise Linux&lt;/a&gt; — Red Hat / Coursera, 2024&lt;/li&gt;
&lt;/ul&gt;</description>
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      <title>Contact</title>
      <link>http://ryabinin.pro/en/contact/</link>
      <pubDate>Mon, 01 Jan 0001 00:00:00 +0000</pubDate>
      <guid>http://ryabinin.pro/en/contact/</guid>
      <description>&lt;p&gt;Feel free to reach out through any of these channels:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Email: &lt;a href=&#34;mailto:you@example.com&#34;&gt;you@example.com&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;GitHub: &lt;a href=&#34;https://github.com/USERNAME&#34;&gt;github.com/USERNAME&lt;/a&gt;&lt;/li&gt;
&lt;li&gt;LinkedIn: &lt;a href=&#34;https://linkedin.com/in/USERNAME&#34;&gt;linkedin.com/in/USERNAME&lt;/a&gt;&lt;/li&gt;
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