PEN-103: Kali Linux Revealed - on the way to KLCP.
PEN-103 (Kali Linux Revealed) covers the distribution itself: installation, configuration, Debian package management, custom images and running Kali cleanly in test environments - around 181 hours of content. It is free with every OffSec account and leads to the KLCP certification.
- Certification
- KLCP - Kali Linux Certified Professional
- Level
- Foundational
- Discipline
- Build
- Audience
- For individual practitioners
Who this course is for
Anyone who wants to understand and operate Kali Linux rather than just use it - before or alongside PEN-200.
Not the right course yet if
- -You have run Kali daily for years - PEN-103 will add little
- →Install, harden and customise Kali for your own use
- →Manage packages, repositories and your own builds
- →Run Kali reproducibly in labs, VMs and test networks
- ·Basic Linux command line familiarity
Not sure whether you meet them? We run a short placement conversation before you buy.
What PEN-103 covers.
- Installation and configuration
- Debian package management
- Customising Kali and building ISOs
Course content, labs and the KLCP exam are provided by OffSec. Precedence always sits with the official course description. This page reviewed: 2026-08-12.
Labs and format
Self-paced course material with practical exercises against your own Kali installation.
Exam and credential
90-minute proctored, closed-book exam with 80 multiple-choice questions, taken in ClassMarker. Results appear immediately after the final question. The KLCP certification does not expire.
The packages that include PEN-103.
Prices in EUR, net, plus statutory VAT. Invoiced through a German entity. Your course is pre-selected at checkout.
Entry route without prior experience.
- ▸ 365 days of access to the 100-level courses
- ▸ 2 exam attempts
- ▸ Proving Grounds Play
You have a focused block of time and want to sit the exam soon.
- ▸ 90 days of course access including labs
- ▸ 1 exam attempt
- ▸ Exactly this course
Study alongside a job, without lab time pressure.
- ▸ 365 days of course access including labs
- ▸ 2 exam attempts
- ▸ Proving Grounds Practice, KLCP and OSWP included
Several people in a team, with evidenced progression.
- ▸ The full OffSec catalogue
- ▸ Learning paths and reporting
- ▸ Reassignable from 5 seats
- +A lab setup session for your own test environment
- +Toolchain recommendations we actually use in engagements
For security teams
Multiple people, role paths, reporting and procurement run through OffSec Learn Enterprise.
See Learn EnterpriseTeam capability development
Badges, learning paths and evidence across attack, defend, build and govern.
See the capability mapOther hackers also bought ... ;)
No. It is included in every package though, and closes gaps in Linux and toolchain fundamentals.
Most learners work through it in a few weeks alongside a job.
Not sure whether PEN-103 is the right course?
We run a short placement conversation: background, study time, goal. Then we recommend a course and package - even when it is the cheaper one.
SEC-100 · OSCC-SEC
PEN-210 · OSWP
WEB-200 · OSWA
SOC-200 · OSDA
IR-200 · OSIR
TH-200 · OSTH
SJD-100 · OSCC-SJD
PEN-300 · OSEP
WEB-300 · OSWE
EXP-301 · OSED
EXP-401 · OSEE
AI-300 · OSAI