Certified - CompTIA Server+ Audio Course

Welcome to the CompTIA Server+ Certification

Episode 124 — Misconfigured NICs and VLANs — Interface Troubleshooting Tactics

This episode explains how misconfigured network interface cards (NICs) and VLAN settings can disrupt server connectivity. We cover issues such as incorrect VLAN tagging, mismatched speed and duplex settings, and disabled interfaces. The discussion includes how multi-NIC configurations require careful planning for load balancing, redundancy, or VLAN segmentation. Practical examples include diagnosing a server that cannot reach its intended subnet due to missing VLAN tags or correcting a mismatch ...

Episode 123 — Network Connectivity Issues — DHCP, DNS, and Route Problems

This episode focuses on diagnosing network connectivity failures by examining IP assignment, name resolution, and routing paths. We explain how DHCP misconfigurations can lead to incorrect or missing IP addresses, how DNS issues prevent hostname resolution, and how routing problems can block communication between subnets or external networks. We provide real-world and exam-relevant scenarios, such as a server unable to connect to the internet due to an incorrect gateway, or a client unable to ac...

Episode 122 — Configuration and Service Failures — Improper Setup and Missing Resources

This episode covers how incorrect configurations and missing dependencies can prevent services from starting or functioning correctly. We discuss common causes, such as incorrect file paths, insufficient permissions, or disabled services. Identifying these issues often requires checking configuration files, logs, and service dependencies. Practical and exam examples include resolving a database service that won’t start due to a missing data directory or restoring a web service after a misconfigu...

Episode 121 — Dependency and Update Conflicts — Software Incompatibility Resolution

This episode explains how dependency issues and update conflicts can cause application or service failures. We discuss scenarios where software relies on specific versions of libraries, frameworks, or drivers, and how updates can inadvertently break functionality by replacing or removing required components. The importance of maintaining compatibility testing procedures before deploying updates is emphasized. We then connect these concepts to both exam and real-world cases, such as a web applica...

Episode 120 — OS and Software Problems — Login Issues and Patch Failures

This episode addresses troubleshooting operating system and application problems, including failed logins, service outages, and patch installation errors. We explain how authentication misconfigurations, expired credentials, or corrupted profiles can block user access, while incomplete or incompatible patches can destabilize services. We connect these challenges to real-world and exam situations, such as diagnosing a failed login due to clock skew between servers or recovering from a service cra...

Episode 119 — Partition and Filesystem Errors — Misalignment, Corruption, and Boot Failures

This episode examines how partition and file system errors can impact server operations. We explain problems such as partition misalignment reducing performance, corruption preventing access to data, and boot failures caused by damaged boot sectors or missing system files. The discussion includes how these issues can originate from improper setup, power loss, or hardware failure. Practical and exam-relevant scenarios include using disk utilities to repair file system corruption, aligning partiti...

Episode 118 — HBA and Controller Issues — Advanced Storage Adapter Failures

This episode focuses on diagnosing problems with host bus adapters (HBAs) and storage controllers, which are critical for connecting servers to storage devices. We discuss symptoms of adapter failure, such as intermittent connectivity, degraded performance, and device detection errors. Configuration mismatches, outdated firmware, and driver incompatibility are also highlighted as common causes. We then explore real-world and exam scenarios, such as troubleshooting an HBA that drops connections t...

Episode 117 — Storage Failures — Mount Errors, Slow Access, and File Corruption

This episode covers how to identify and resolve storage-related failures in server environments. We explain symptoms such as inability to mount volumes, significantly degraded read/write speeds, and corrupted files. Common causes include failing drives, controller faults, cabling issues, and file system corruption. Real-world and exam-relevant examples include troubleshooting a server that fails to recognize an attached SAN volume or investigating a performance drop caused by a failing HDD. Step...

Episode 116 — RAID Misconfigurations — Faulty Arrays, Rebuilds, and Bad Sectors

This episode explains how RAID misconfigurations can lead to degraded performance, data loss, or complete array failure. We discuss common causes such as incorrect drive order, mismatched drive sizes, incompatible RAID levels for the workload, and improper rebuild procedures. The importance of verifying configuration settings against vendor guidelines before deployment is emphasized. We then connect these issues to both exam and real-world scenarios, such as restoring redundancy after a drive fa...

Episode 115 — Visual and Auditory Cues — LED, LCD, and Unusual Sounds or Smells

This episode examines how to use visual and auditory indicators to troubleshoot hardware problems. We discuss interpreting status LEDs, reading LCD panel error codes, and recognizing abnormal sounds such as failing fans or clicking drives. The importance of detecting unusual smells, like burnt circuitry, as a sign of component failure is also covered. Practical examples include tracing a network outage to a switch with red link lights, or diagnosing a drive failure from repeated clicking noises....

Episode 114 — CMOS Battery and Lockup Events — Diagnosing Time and Power Problems

This episode covers how a failing CMOS battery can cause time drift, loss of BIOS settings, and boot failures. We explain the function of the CMOS battery in maintaining system configuration when power is removed, and how to identify symptoms of failure. Lockup events related to power issues are also discussed, including those caused by unstable power supplies or voltage fluctuations. We then present real-world and exam scenarios, such as a server repeatedly losing boot device settings after pow...

Episode 113 — POST Errors and Random Lockups — Identifying Hardware Start Failures

This episode explains how to diagnose Power-On Self-Test (POST) errors and intermittent system lockups that indicate potential hardware problems. We discuss common beep codes, LED indicators, and error messages displayed during startup, as well as how they map to specific hardware components. Lockups that occur after startup are also examined for possible causes, including overheating, failing storage, or power irregularities. We provide exam-focused and real-world examples, such as identifying ...

Episode 112 — Memory-Related Issues — Dumps, Crashes, and RAM Errors

This episode focuses on troubleshooting server memory problems, from application crashes to full system halts. We explain how to interpret memory dumps, identify faulty DIMMs, and use diagnostic tools to confirm suspected issues. The discussion also includes how improper memory configurations, such as mismatched speeds or unsupported sizes, can lead to instability. We then connect these concepts to both exam and operational contexts, such as resolving a blue screen caused by a defective module o...

Episode 111 — Predictive Failures — Early Warning Signs and Indicators

This episode explains how predictive failure technologies and monitoring tools can identify hardware issues before they cause outages. We discuss using SMART data for drives, temperature and fan speed sensors for CPUs, and vendor-specific monitoring utilities for servers. These early warnings allow administrators to schedule maintenance or replacements before failures occur, minimizing downtime and avoiding data loss. We then explore exam-relevant and real-world scenarios, such as replacing a st...

Episode 110 — Troubleshooting Documentation — Recording Actions and Outcomes

This episode focuses on documenting troubleshooting activities from the initial problem report to the final resolution. We discuss capturing details about symptoms, diagnostic steps, implemented changes, and verification results. Thorough documentation allows for faster resolution of similar issues in the future and provides a record for compliance audits. Practical and exam-relevant examples include using ticketing systems to store incident histories or creating knowledge base articles for recu...

Episode 109 — Root Cause Analysis — Preventing Future Incidents

This episode covers how to conduct a root cause analysis (RCA) to determine why a problem occurred and how to prevent its recurrence. We explain how to gather evidence, map the sequence of events, and identify both technical and process-related contributing factors. Documenting the findings is essential for long-term operational improvement. We then explore exam and real-world examples, such as discovering that a server outage was due to unpatched firmware or a misconfigured failover setting. Tr...

Episode 108 — Functional Verification — Ensuring System Stability Post-Fix

This episode explains the importance of verifying that a system is fully functional after implementing a fix. We discuss running validation tests, confirming service availability, and ensuring performance metrics are within acceptable ranges. Functional verification also involves checking related systems that may have been indirectly affected by the change. Practical examples include confirming that all nodes in a cluster are online after maintenance or validating database queries after a storag...

Episode 107 — Change Implementation — Testing and Controlled Changes

This episode focuses on executing the planned solution in a controlled environment. We cover making one change at a time, monitoring for its effect, and ensuring each adjustment aligns with the overall remediation strategy. Implementing changes incrementally reduces the risk of introducing new problems and makes it easier to isolate the source of any resulting issues. We provide exam-relevant and real-world examples, such as updating network switch firmware or reconfiguring VLAN assignments to r...

Episode 106 — Establishing a Plan of Action — Solution Planning and Notifications

This episode explains how to create a detailed plan of action once the root cause of a problem is identified. We discuss outlining step-by-step remediation tasks, sequencing changes to minimize downtime, and identifying potential risks before implementation. The plan should also include a rollback procedure in case the fix causes unexpected issues. Notifying stakeholders about the planned changes ensures transparency and allows them to prepare for possible service impacts. We then explore real-w...

Episode 105 — Testing the Theory — Verification and Adjustment Techniques

This episode focuses on testing the theory of probable cause to confirm whether it explains the observed issue. We discuss performing controlled changes, using diagnostic tools, and monitoring system behavior for improvement or recurrence of the problem. If the theory is confirmed, the next step is implementing a permanent fix; if not, the theory must be revised and retested. We provide real-world and exam-relevant scenarios, such as swapping a suspected faulty NIC to see if connectivity improve...

Episode 104 — Theory of Probable Cause — Narrowing Down Server Failures

This episode discusses how to form a theory of probable cause after gathering information about a problem. We explain how to use evidence from logs, performance metrics, and user reports to eliminate unlikely factors and focus on the most probable source of the issue. This step ensures troubleshooting efforts are targeted and efficient. We then explore examples, such as narrowing down a network outage to a faulty switch port or linking poor performance to a failing storage controller. Troublesho...

Episode 103 — Replication and Documentation — Reproducing and Logging Issues

This episode explains how replicating an issue helps confirm the root cause and ensures that corrective measures address the actual problem. We discuss how to safely recreate issues in test environments, document exact steps and conditions, and capture relevant logs or screenshots for further analysis. Detailed documentation also aids in escalation to higher-level support or vendor assistance. Real-world and exam examples include reproducing an application crash under specific load conditions or...

Episode 102 — Identifying Problems — Scoping and User Input Techniques

This episode focuses on the first step of the troubleshooting process: accurately identifying and scoping a problem. We discuss gathering user reports, reviewing monitoring data, and determining the affected systems or services. Scoping ensures the issue is clearly defined before any corrective action is taken, preventing wasted time on unrelated areas. We then explore practical examples, such as distinguishing between a single-server failure and a broader network issue, or separating user error...

Episode 101 — Domain 4 Overview — Troubleshooting Methodologies and Practices

This episode introduces Domain 4 of the CompTIA Server+ exam, which focuses on structured troubleshooting processes and the tools needed to resolve hardware, software, network, and security issues. We outline the methodology steps—problem identification, theory development, testing, implementation, and documentation—and explain how they ensure consistency and accuracy in problem resolution. Candidates will see how following a structured approach reduces guesswork and improves long-term system st...

Episode 100 — Hardware Hardening — Physical Ports, BIOS, and Boot Order Settings

This episode covers hardware-level security measures that prevent unauthorized use or modification of server systems. We explain how to disable unused physical ports, set administrative BIOS passwords, and configure boot order to restrict booting from external media. These measures reduce the risk of unauthorized device access or operating system bypass attacks. Practical examples include locking down USB ports to prevent unauthorized data transfers or setting BIOS passwords to stop changes to s...

Episode 99 — Host and Application Hardening — Antivirus and Updates Explained

This episode explains how to secure individual server hosts and applications through targeted hardening measures. We discuss deploying antivirus and anti-malware tools, ensuring timely application of patches, and disabling unnecessary application features or services. Application configuration best practices, such as enforcing authentication and encryption, are also covered. We then explore exam and operational scenarios where host and application hardening prevent compromise, such as patching a...

Episode 98 — Server OS Hardening — Patches, Ports, and Service Reduction

This episode focuses on securing a server operating system by applying hardening techniques that minimize vulnerabilities. We cover the importance of keeping systems fully patched, closing unused network ports, and disabling unneeded services. The discussion also includes reviewing startup processes, removing default accounts, and enforcing secure configurations for network protocols. We provide real-world and exam-oriented examples, such as reducing the attack surface of a web server by disabli...

Episode 97 — Regulatory Constraints — PII, PCI DSS, and Legal Retention

This episode reviews the regulatory and legal frameworks that affect server administration, focusing on requirements for protecting personally identifiable information (PII) and complying with industry-specific standards such as the Payment Card Industry Data Security Standard (PCI DSS). We explain how legal retention rules dictate how long certain data types must be stored, and how these rules impact storage design, security controls, and backup strategies. We also explore exam-relevant and rea...

Episode 96 — Security Monitoring — SIEM, Log Analysis, and Role Separation

This episode explains how security monitoring systems, particularly Security Information and Event Management (SIEM) platforms, collect and correlate logs from multiple sources to detect suspicious activity. We discuss how SIEM tools enable real-time alerting, historical analysis, and compliance reporting. The importance of role separation in monitoring is also covered, ensuring that those reviewing security logs are not the same individuals with administrative control over the systems being mon...