The Linux Professional Institute (LPI) is a non-profit organization that provides vendor-independent certification exams for Linux professionals. It was founded in 1999 with the goal of establishing standards for Linux professionals and promoting the use of Linux. LPI offers several levels of certification, including LPIC-1, LPIC-2, and LPIC-3, which test a candidate’s knowledge and skills in various areas of Linux administration, such as installation, configuration, and security. The certifications are widely recognized in the IT industry and can help individuals demonstrate their expertise and enhance their career opportunities.