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#0
Learn Keepalived - Pre-requisites Skill & Environment Setup
Before touching Keepalived, you need to master the basics of networking, the concepts of high availability and failover, as well as Linux networking and the command line. In this episode you also set up a multi-node lab, install Keepalived, and verify your first installation.
August 10, 2026
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#1
Learn Keepalived - History, Background & Why Choose Keepalived
This episode traces Keepalived's history from a small daemon for LVS to a mature VRRP-based HA solution, compares it with Heartbeat, Corosync/Pacemaker, and native LVS, and closes with the use cases of floating IP failover, HA load balancer, and gateway.
August 10, 2026
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#2
Learn Keepalived - Core Concepts & Main Architecture
This episode dissects the core VRRP concepts: virtual router, priority, advertisement, and master/backup election, then maps out the Keepalived architecture through keepalived.conf and its three subsystems: VRRP, checkers, and LVS.
August 10, 2026
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#3
Learn Keepalived - Installation & Hello Keepalived
This episode teaches installing Keepalived on Ubuntu and RHEL, creating the first floating IP configuration with two nodes, starting the service, reading state transition logs, and observing simple failover.
August 10, 2026
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#4
Learn Keepalived - VRRP Instances & Virtual IPs
This episode dissects vrrp_instance thoroughly: the state, priority, and authentication parameters, virtual IP behavior during failover, tracked interfaces that lower priority automatically, and the preemption and preempt_delay mechanisms for failback.
August 10, 2026
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#5
Learn Keepalived - Health Checks & Failover Policies
This episode teaches you how to write vrrp_script and track_script, use notify hooks to respond to state changes, combine health checks from multiple sources, and configure failover policies such as nopreempt, preempt_delay, and garp_master_delay.
August 10, 2026
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#6
Learn Keepalived - LVS Integration & Load Balancing
This episode brings Keepalived into load balancing mode: configuring virtual_server with a scheduler and NAT, DR, or TUN mode, persistence rules for sticky connections, as well as per-real-server health checks and verification with ipvsadm.
August 10, 2026
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#7
Learn Keepalived - Logging & Troubleshooting
This episode equips you with Keepalived troubleshooting skills: log levels and syslog integration, dissecting VRRP advertisements with tcpdump, and mapping common failure modes such as authentication mismatch, conflicting virtual_router_id, and multicast problems.
August 10, 2026
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#8
Learn Keepalived - Advanced Keepalived Configuration
This episode brings Keepalived configuration to an advanced level: synchronizing multiple instances via vrrp_sync_group, managing many virtual routers and VIPs at once, and tracking interfaces, routes, and scripts within one larger HA architecture.
August 10, 2026
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#9
Learn Keepalived - Security & Authentication
This episode covers VRRP security: the fate of auth_type PASS in Keepalived 2.2 and its replacement by auth_type AH, shared secret management with strict permissions, securing scripts and service access, plus best practices for safe HA operations.
August 10, 2026
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