IT Security
Linux Networking and Security
This practical course helps professionals master Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting. The program connects key concepts, real use cases, risks, tools, and operational decisions so participants can apply the learning in their work environment. It can be tailored to the organization’s sector, internal systems, participant maturity, and performance objectives.
Objectives
- Understand the concepts, challenges, and use cases related to Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting.
- Identify the data, systems, processes, and stakeholders required for effective implementation.
- Assess risks, limitations, governance requirements, and practical control points.
- Use methods, tools, and templates to structure analysis and decision-making.
- Translate learning into action plans, recommendations, and measurable improvement opportunities.
- Adapt the approach to the operating context, team maturity, and business objectives.
Target audience
- Cybersecurity and IT security professionals
- SOC analysts, infrastructure teams, and operations teams
- Risk, audit, compliance, and governance professionals
- System, network, cloud, and OT administrators
- IT managers responsible for security posture
Program outline
A clear structure for the learning journey.
Program outline
Outline points are grouped in one designed block instead of being treated as separate module cards.
Module 1: Linux Installation, Filesystem Layout, and Boot Process
Applying linux installation, filesystem layout, and boot process in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 2: Users, Groups, Permissions, sudo, and Access Control
Applying users, groups, permissions, sudo, and access control in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 3: Packages, Repositories, Services, and systemd
Applying packages, repositories, services, and systemd in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 4: Storage, LVM, Filesystems, Mounts, and Backup Basics
Applying storage, lvm, filesystems, mounts, and backup basics in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 5: Linux Networking, Firewalls, DNS, SSH, and Remote Access
Applying linux networking, firewalls, dns, ssh, and remote access in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 6: Security Hardening, SELinux, Logs, and Audit Controls
Applying security hardening, selinux, logs, and audit controls in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 7: Performance, Processes, Troubleshooting, and Recovery
Applying performance, processes, troubleshooting, and recovery in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Module 8: Linux Administration Lab
Applying linux administration lab in the context of Linux networking and security, firewalls, SSH, hardening, logging, access controls, and troubleshooting
Practical exercises, control points, deliverables, and related decisions
Materials provided
- â—‹ Slides used during the sessions
- â—‹ Group activities and practical exercises
- â—‹ Worksheets, checklists, and templates
- â—‹ Case studies relevant to the course
- â—‹ 4D Certificate of Completion issued by 4D Training & Consultancy
- â—‹ Post-course support for technical queries and guidance
Training Options
Programs can be delivered in-house, online, or in a blended format depending on your team's schedule, location, and learning objectives. When an external certificate or exam is included, certification rules and fees remain under the relevant awarding body's policies, while 4D provides the training and preparation support.
Why choose 4D
4D Training & Consultancy designs technical and professional programs around the client’s operating reality. The course can be adapted to sector requirements, internal systems, team capability, practical use cases, and the level of depth required by the audience.
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