This is the most up-to-date overview of open source Linux certifications.

1. Linux Professional Institute Novell Suse RedHat
Trainee LPI Basic
LPI Basic LPI ICT Basics
LPI ICT Basics
LPI 101
LPI 101 RHCSA RHCVA
Junior Novell CLA CompTIA RHCSA RHCVA
LPIC-1
LPIC-1 Certified Linux Administrator Linux + LPI
RedHat RedHat
RedHat
Certified RedHat
Certified
Certified Certified
LPI 102
LPI 102
System
System
Administrator
Virtualisation
Virtualisation
Administrator
Administrator Administrator
Univention
Univention Novell CLP
Novell CLP Zarafa
Zarafa
UniVention Certified Prof Certified Linux Prof Certified Zarafa Engineer
UniVention Certified Prof Certified Linux Prof Certified Zarafa Engineer
LPI 201 LPI VCT Novell RHCE
RHCE
LPI 201 LPI VCT Novell Redhat Certified Engineer
LPIC-2 Virtualisation & CLE
CLE
Redhat Certified Engineer
LPIC-2 Communication &
Virtualisation
Certified
LPI 202
LPI 202
Communication
Technician
Technician LinuxCertified
Engineer
Linux Engineer
RHCSS RHCDS
RHCSS RHCDS
RedHat RedHat
RedHat RedHat
LPIC-3
LPIC-3 LPI 301
Certified
Certified
Security
Certified
Certified
Datacenter
CORE
CORE
LPI 301 Security
Specialist
Specialist
Datacenter
Specialist
Specialist
LPI LPI
LPI LPI
LPI
LPI LPI 304 305 RHCA
RHCA
LPIC-3
LPIC-3 302 LPI 304 305 RedHat Certified Architect
Expert 302 303 High Availability Mail RedHat Certified Architect
Speciality
Speciality Mixed
Mixed
303
Security High Availability
& &Mail
environment Security & &
environment Virtualisation Messaging
Virtualisation Messaging