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    <title>Sebastian Insausti</title>
    <link>https://insaustis.com</link>
    <description>Practical guides on Linux, databases, networking, and infrastructure by Sebastian Insausti, Senior Infrastructure &amp; Database Engineer.</description>
    <language>en-us</language>
    <managingEditor>sebastian@insaustis.com (Sebastian Insausti)</managingEditor>
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  <item>
    <title>How to Read Operational Dashboards Without Being Misled</title>
    <link>https://insaustis.com/blog/how-to-read-operational-dashboards-without-being-misled.html</link>
    <description>Recognize misleading scales, aggregations, missing context, and panel semantics before acting on an operational dashboard.</description>
    <pubDate>Mon, 07 Sep 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/how-to-read-operational-dashboards-without-being-misled.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


  <item>
    <title>Percentiles, Variance, and Standard Deviation for Engineers</title>
    <link>https://insaustis.com/blog/percentiles-variance-standard-deviation-for-engineers.html</link>
    <description>Interpret percentiles, variance, and standard deviation correctly when analyzing latency, workload, and database performance.</description>
    <pubDate>Sun, 06 Sep 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/percentiles-variance-standard-deviation-for-engineers.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


    <item>
      <title>Practical Database Monitoring with Prometheus and Grafana</title>
      <link>https://insaustis.com/blog/database-monitoring-prometheus-grafana.html</link>
      <description>Build a PostgreSQL and MySQL monitoring stack with useful metrics, alerts, and daily DBA workflows.</description>
      <pubDate>Sat, 05 Sep 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/database-monitoring-prometheus-grafana.html</guid>
      <category>Databases</category>
      <category>Monitoring</category>
    </item>


    <item>
      <title>Cloudflare for Personal Websites: DNS, Proxying, and Workers</title>
      <link>https://insaustis.com/blog/cloudflare-dns-proxy-workers.html</link>
      <description>Understand what Cloudflare provides for free, what Workers are, and when a paid plan becomes worthwhile.</description>
      <pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/cloudflare-dns-proxy-workers.html</guid>
      <category>Infrastructure</category>
      <category>Networking</category>
    </item>


    <item>
      <title>Why Averages Hide Production Incidents</title>
      <link>https://insaustis.com/blog/why-averages-hide-production-incidents.html</link>
      <description>Use percentiles, histograms, segmentation, and error rates to find incidents hidden by healthy-looking averages.</description>
      <pubDate>Thu, 03 Sep 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/why-averages-hide-production-incidents.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
    </item>


    <item>
      <title>Send Server Alerts to Telegram with a Bot</title>
      <link>https://insaustis.com/blog/telegram-bot-server-alerts.html</link>
      <description>Create a Telegram bot and send practical server and monitoring alerts with curl and a reusable Bash script.</description>
      <pubDate>Wed, 02 Sep 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/telegram-bot-server-alerts.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
    </item>


    <item>
      <title>DynamoDB for DBAs: When to Use It and How to Operate It</title>
      <link>https://insaustis.com/blog/dynamodb-for-dbas.html</link>
      <description>A DBA-oriented guide to DynamoDB workload fit, data modeling, capacity, topology, monitoring, and recovery.</description>
      <pubDate>Tue, 01 Sep 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/dynamodb-for-dbas.html</guid>
      <category>Databases</category>
      <category>Infrastructure</category>
    </item>


    <item>
      <title>A Practical Docker Home Server on Raspberry Pi 4</title>
      <link>https://insaustis.com/blog/raspberry-pi-4-docker-home-server.html</link>
      <description>A focused home-server stack with Nextcloud, DNS filtering, secure remote access, monitoring, and backups.</description>
      <pubDate>Mon, 31 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/raspberry-pi-4-docker-home-server.html</guid>
      <category>Infrastructure</category>
      <category>Linux</category>
    </item>


    <item>
      <title>RPO and RTO Explained Through a Database Recovery Plan</title>
      <link>https://insaustis.com/blog/rpo-rto-database-recovery-plan.html</link>
      <description>Translate recovery objectives into concrete database architecture, backup, and testing decisions.</description>
      <pubDate>Sun, 30 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/rpo-rto-database-recovery-plan.html</guid>
      <category>Databases</category>
      <category>Infrastructure</category>
    </item>


    <item>
      <title>A Backup Is Not a Recovery Plan</title>
      <link>https://insaustis.com/blog/a-backup-is-not-a-recovery-plan.html</link>
      <description>Turn database backups into a recovery process you can trust during an incident.</description>
      <pubDate>Sat, 29 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/a-backup-is-not-a-recovery-plan.html</guid>
      <category>Databases</category>
      <category>Infrastructure</category>
    </item>


  <item>
    <title>Exploratory Data Analysis for Infrastructure Metrics</title>
    <link>https://insaustis.com/blog/exploratory-data-analysis-infrastructure-metrics.html</link>
    <description>Use a repeatable exploratory workflow to understand infrastructure metrics before creating dashboards, thresholds, or alerts.</description>
    <pubDate>Fri, 28 Aug 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/exploratory-data-analysis-infrastructure-metrics.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


    <item>
      <title>How to Build a Home Virtualization Lab with Proxmox VE</title>
      <link>https://insaustis.com/blog/proxmox-home-virtualization-lab.html</link>
      <description>Install Proxmox VE, update the host, and create your first virtual machine in a practical home lab.</description>
      <pubDate>Thu, 27 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/proxmox-home-virtualization-lab.html</guid>
      <category>Infrastructure</category>
      <category>Linux</category>
    </item>


  <item>
    <title>From Raw Logs to Actionable Operational Data</title>
    <link>https://insaustis.com/blog/from-raw-logs-to-actionable-operational-data.html</link>
    <description>Turn structured application and database logs into reliable operational metrics, investigations, and alerts.</description>
    <pubDate>Wed, 26 Aug 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/from-raw-logs-to-actionable-operational-data.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


    <item>
      <title>Protecting Database Servers with Network Segmentation</title>
      <link>https://insaustis.com/blog/protecting-database-servers-network-segmentation.html</link>
      <description>Limit database exposure with security zones, explicit traffic flows, and layered controls.</description>
      <pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/protecting-database-servers-network-segmentation.html</guid>
      <category>Databases</category>
      <category>Networking</category>
    </item>


    <item>
      <title>Building a Practical Incident Response Plan</title>
      <link>https://insaustis.com/blog/practical-incident-response-plan.html</link>
      <description>Build a usable response plan with clear roles, severity levels, playbooks, communications, and exercises.</description>
      <pubDate>Mon, 24 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/practical-incident-response-plan.html</guid>
      <category>Infrastructure</category>
      <category>Security</category>
    </item>


    <item>
      <title>What to Do After a Server Is Compromised</title>
      <link>https://insaustis.com/blog/after-server-compromise.html</link>
      <description>Contain the incident, preserve evidence, determine scope, and rebuild safely.</description>
      <pubDate>Sun, 23 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/after-server-compromise.html</guid>
      <category>Infrastructure</category>
      <category>Security</category>
    </item>


    <item>
      <title>How to Build a Cybersecurity Risk Register</title>
      <link>https://insaustis.com/blog/cybersecurity-risk-register.html</link>
      <description>Turn technical findings into owned, prioritized, and reviewable cybersecurity risks.</description>
      <pubDate>Sat, 22 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/cybersecurity-risk-register.html</guid>
      <category>Infrastructure</category>
      <category>Security</category>
    </item>


    <item>
      <title>Secure Remote Administration with WireGuard and SSH</title>
      <link>https://insaustis.com/blog/secure-remote-administration-wireguard-ssh.html</link>
      <description>Use a private WireGuard network and hardened SSH configuration for remote administration.</description>
      <pubDate>Fri, 21 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/secure-remote-administration-wireguard-ssh.html</guid>
      <category>Linux</category>
      <category>Networking</category>
    </item>


    <item>
      <title>The Anatomy of a Cyberattack: Where Defenders Can Break the Chain</title>
      <link>https://insaustis.com/blog/anatomy-of-a-cyberattack.html</link>
      <description>Map common adversary objectives to practical defensive controls and detection opportunities.</description>
      <pubDate>Thu, 20 Aug 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/anatomy-of-a-cyberattack.html</guid>
      <category>Infrastructure</category>
      <category>Security</category>
    </item>


  <item>
    <title>Detecting Outliers Without Hiding Real Incidents</title>
    <link>https://insaustis.com/blog/detecting-outliers-without-hiding-real-incidents.html</link>
    <description>Detect unusual production behavior with robust statistics while preserving the anomalies that may represent real incidents.</description>
    <pubDate>Wed, 19 Aug 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/detecting-outliers-without-hiding-real-incidents.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


  <item>
    <title>Data Quality Checks Before Trusting a Dashboard</title>
    <link>https://insaustis.com/blog/data-quality-checks-before-trusting-a-dashboard.html</link>
    <description>Validate freshness, completeness, uniqueness, units, and collection behavior before making operational decisions from a dashboard.</description>
    <pubDate>Tue, 18 Aug 2026 00:00:00 +0000</pubDate>
    <guid>https://insaustis.com/blog/data-quality-checks-before-trusting-a-dashboard.html</guid>
      <category>Infrastructure</category>
      <category>Monitoring</category>
  </item>


    <item>
      <title>PostgreSQL Migration Strategies</title>
      <link>https://insaustis.com/blog/postgresql-migration-strategies.html</link>
      <description>Compare pg_upgrade, dump and restore, logical replication, and pgloader to choose the right PostgreSQL migration strategy.</description>
      <pubDate>Sat, 04 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/postgresql-migration-strategies.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>Galera Cluster: Multi-Master MySQL Replication</title>
      <link>https://insaustis.com/blog/galera-cluster.html</link>
      <description>A practical guide to Galera&apos;s virtually synchronous replication, quorum, conflicts, state transfers, and health-aware routing.</description>
      <pubDate>Wed, 01 Apr 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/galera-cluster.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>MySQL Automated Failover with Orchestrator</title>
      <link>https://insaustis.com/blog/mysql-failover-orchestrator.html</link>
      <description>Topology discovery and controlled MySQL recovery with candidate selection, fencing, routing, and operational safeguards.</description>
      <pubDate>Wed, 25 Mar 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/mysql-failover-orchestrator.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>Blue-Green and Canary Deployments</title>
      <link>https://insaustis.com/blog/blue-green-canary-deployments.html</link>
      <description>A practical guide to blue-green and canary deployment strategies — how they work, when to use each, and what to watch out for with databases.</description>
      <pubDate>Tue, 10 Mar 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/blue-green-canary-deployments.html</guid>
      <category>Infrastructure</category>
      <category>Linux</category>
    </item>


    <item>
      <title>ProxySQL: Load Balancing MySQL Traffic</title>
      <link>https://insaustis.com/blog/proxysql-load-balancing.html</link>
      <description>Configure MySQL connection management, topology monitoring, and workload-specific query routing safely with ProxySQL.</description>
      <pubDate>Thu, 20 Feb 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/proxysql-load-balancing.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>MySQL Primary-Replica Replication: A Practical Setup Guide</title>
      <link>https://insaustis.com/blog/mysql-replication.html</link>
      <description>Step-by-step guide to configuring MySQL primary-replica replication, including binary log setup, replica provisioning, and common troubleshooting.</description>
      <pubDate>Thu, 15 Jan 2026 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/mysql-replication.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>Understanding the InnoDB Doublewrite Buffer</title>
      <link>https://insaustis.com/blog/innodb-doublewrite-buffer.html</link>
      <description>Learn how the InnoDB Doublewrite Buffer protects MySQL data integrity against torn page writes and corruption during crashes.</description>
      <pubDate>Tue, 07 Oct 2025 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/innodb-doublewrite-buffer.html</guid>
      <category>Databases</category>
      <category>Linux</category>
    </item>


    <item>
      <title>tcpdump: A Sysadmin&apos;s Pocket Knife</title>
      <link>https://insaustis.com/blog/tcpdump-sysadmin.html</link>
      <description>A practical guide to tcpdump for sysadmins — installation, essential filters, saving captures, and real-world troubleshooting scenarios.</description>
      <pubDate>Sun, 21 Sep 2025 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/tcpdump-sysadmin.html</guid>
      <category>Linux</category>
      <category>Networking</category>
      <category>Monitoring</category>
    </item>


    <item>
      <title>Getting Started with Wireshark</title>
      <link>https://insaustis.com/blog/wireshark-getting-started.html</link>
      <description>Install and use Wireshark for capturing and analyzing network traffic. Covers display filters, stream following, statistics, and production tips.</description>
      <pubDate>Sun, 21 Sep 2025 00:00:00 +0000</pubDate>
      <guid>https://insaustis.com/blog/wireshark-getting-started.html</guid>
      <category>Linux</category>
      <category>Networking</category>
      <category>Monitoring</category>
    </item>

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