Course

Linux Security for Administrators («LINSEC»)

Learn how to configure basic security settings and secure Linux systems, from user access to networks and services to the kernel. Identify and effectively prevent potential attacks.
Duration 2 days
Price 2'350.–
Course documents Digital courseware
New Security essentials to operate Linux systems securely

Course facts

Key Learnings
  • Knowing how to plan a secure Linux system
  • Securing the system physically
  • Configuring the accesses
  • Updating the systems
  • Performing a backup of the system-relevant files
  • Restricting access and authorisations to the system
  • Using SELinux correctly
  • Allocating the mass storage
  • Restricting network access using firewall configuration
  • Knowing LUKS for data carrier encryption
Content

1 Security

  • What or from whom do we need to protect ourselves

2 Physical access to the system

  • Physical security of the systems

3 SSH optimisation

  • Securing access to the system – with keys and 2FA

4 Updating

  • What, when and how to update

5 Backup strategy

  • Backing up system-relevant data/files

6 Access and access rights

  • How do we authenticate access and restrict access

7 SELinux

  • Checking the system calls of processes to see if they are authorised

8 Hard disc partitioning

  • Partitioning mass storage (HD, SSD, NVME) from a security perspective

9 Kernel hardening

  • Secure and harden Linux kernel module using various techniques and methods

10 Firewall configuration

  • Regulating network access using iptables, firewalld, ufw etc.

11 Data carrier encryption

  • LUKS and other methods
Methodology & didactics

Short blocks of theory with direct practical application

Target audience

This course is aimed at Linux administrators or experienced users who want to focus specifically on system security and integrity.

Requirements

Very good knowledge of the command line (shell) and commands, as taught in the LINUX and LINUX2 courses, is required. Knowledge of system administration analogue to the LINSY1 course is also required.

    Linux/Unix – System Administrator I («LINSY1»)

    4 days
    • Basel, Berne, Geneva, Lausanne, Virtual Training, Zürich
    CHF
    2'800.–

    Linux/Unix – Buildup to Administrator/PowerUser («LINUX2»)

    4 days
    • Basel, Berne, Geneva, Lausanne, Virtual Training, Zürich
    CHF
    2'800.–

    Practical Introduction to the Linux/Unix World («LINUX»)

    3 days
    • Basel, Berne, Geneva, Lausanne, Virtual Training, Zürich
    CHF
    2'100.–

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Choose your date

25
Aug
2025
26
Aug
2025
Zürich
German
Timetable
CHF 2’350.-
exkl. 8.1% Mwst.
CHF 2’350.-
exkl. 8.1% Mwst.
25
Aug
2025
26
Aug
2025
Berne
German
Timetable
CHF 2’350.-
exkl. 8.1% Mwst.
CHF 2’350.-
exkl. 8.1% Mwst.
25
Aug
2025
26
Aug
2025
Basel
German
Timetable
CHF 2’350.-
exkl. 8.1% Mwst.
CHF 2’350.-
exkl. 8.1% Mwst.
27
Nov
2025
28
Nov
2025
Virtual Training
German
Timetable
CHF 2’350.-
exkl. 8.1% Mwst.
CHF 2’350.-
exkl. 8.1% Mwst.
Next date
25
Aug
2025
26
Aug
2025
Zürich
German
Timetable
CHF 2’350.-
exkl. 8.1% Mwst.
CHF 2’350.-
exkl. 8.1% Mwst.