CompTIA Server+ SK0-005 certification is CompTIA's hidden gem. It's a fundamental certification, aiming at IT professionals within their first two to four years of experience. Though not being as famous as other CompTIA certifications, like A+, Network+, and Security+, achieving a Server+ certification will surely add value to your CV.
CompTIA Server+ SK0-005 is the only vendor-neutral server certification available presently, basically contesting against vendor-specific certs like Microsoft Server Administrator and CCNP Data Center. While these latter certifications concentrate on their products and executions, CompTIA Server+ shrinks the size to a more expansive scale, aiming for server and networking basic principles.