Run Ruby applications in FIPS mode on Red Hat Enterprise Linux

224 · Red Hat · Nov. 28, 2025, 7:34 a.m.
Summary
This blog post provides an in-depth guide on running Ruby applications in FIPS mode on Red Hat Enterprise Linux. It covers necessary insights, instructions, and personal experiences related to contributing to the Ruby OpenSSL project focused on FIPS compliance. Recommended versions of RHEL and Ruby that fully support FIPS mode are listed, along with methods to confirm the FIPS environment and handle prohibited cryptographic algorithms. The author emphasizes the importance of ensuring applications adhere to FIPS standards for secure operation.