Linux Professional Institute Security Essentials (020-100)

Security gaps often start with everyday decisions: unpatched systems, weak passwords, misconfigured guest Wi-Fi, untested backups, and staff who miss social engineering attempts. This course gives IT Directors and Team Leads a shared security baseline for the whole team, not just the security specialists.

Role fit: This is a good fit for help desk staff, junior sysadmins, and IT Practitioners new to security. It also suits experienced staff who want to validate their skills against the LPI Security Essentials (020-100) exam. Instructor James Conrad teaches from an entry-level starting point and adds context beyond the exam objectives.

Time investment: About 22 hours across 23 skills. Most skills run about 45–80 minutes, so learners can work through one or two per week without pulling them off production work.

Risk and compliance relevance: Topics include:

• Risk assessment, ISMS, and incident response planning
• Data classification and NDAs
• Backups planned around RPO and RTO, with retention needs such as HIPAA and Sarbanes-Oxley in mind

These help your team speak the same language as auditors and stakeholders.

Change-management note: Coverage spans Linux, Windows, and Azure. This makes the course practical for mixed environments rather than Linux-only shops.

Instructor demos and validation scenarios reinforce each skill. Build a Playlist that pairs this course with LPI Linux Essentials (010-160) for a structured Linux-plus-security path.

IT teams use this training to build a shared security baseline that cuts down on avoidable incidents and audit surprises. The instructor goes beyond exam objectives to show how threats can affect real environments, so IT Practitioners can recognize risk earlier and respond with better discipline.

• Plan recovery before the outage. Your team learns to set recovery point and recovery time objectives in advance with IT and business stakeholders. They also learn how retention requirements such as HIPAA and Sarbanes-Oxley shape backup strategy, which reduces guesswork on the day data is lost.
• Spot exposure early. Scenarios about compromised data, disrupted systems, and politically motivated attackers help staff recognize where weak security hygiene can create risk. The training reinforces how common security practices and network technologies support stronger protection.
• Triage suspected malware with discipline. Learners see why a slow machine warrants a malware scan before a hardware fix. They use Task Manager to flag unrecognized executables, and they test unknown software in a sandbox that can be rolled back.
• Harden everyday systems and identities. Your team applies Linux updates and upgrades, changes default IoT passwords, and works through web certificate setup steps, including using Certbot guidance on a server. Each of these steps narrows the attack surface.

For IT Directors, the result is a team that speaks a common security vocabulary and is prepared to pursue the LPI Security Essentials certification.

Knowledge

• The core goals of IT security, the roles and actors involved, and how risk assessment, ISMS frameworks, incident response plans, and CERTs fit together
• Encryption for data at rest, in transit, and in use, plus how PKI, X.509 certificate fields, hashing, and email signatures establish trust
• Common network vulnerabilities and traffic sniffing risks, plus how firewalls and security hygiene help reduce exposure
• Backup strategy fundamentals, including recovery point objective (RPO), recovery time objective (RTO), and retention drivers such as legal, regulatory, contractual, and internal requirements
• Principles of digital identity, including authentication, authorization, accounting, passwords, and FIDO security keys
• Social engineering tactics, data classification, NDAs, and privacy protection practices

Ability

• Apply operating system updates on Linux systems and tell the difference between routine package updates and full version upgrades
• Request and validate web certificates using resources such as Let's Encrypt and Certbot, and generate hashes to verify data integrity
• Recognize signs of malware, such as slow performance and unrecognized executables, and test unknown software in a sandbox before deployment
• Plan RPO and RTO targets with IT and business stakeholders before an outage happens
• Tell consumer VPNs apart from centrally administered corporate and site-to-site VPNs, and secure IoT devices by changing default credentials
• Speak credibly with other IT professionals about security risks and controls, and support readiness for the LPI Security Essentials (020-100) exam