Fix it by building FreeRADIUS yourself or find another package... You cannot use that build as it was built against OpenSSL 1.0.2 yet your distribution is using OpenSSL 1.0.1 There's highly likely to be ABI mismatches. Regardless, the as-yet-unreleased FreeRADIUS 3.0.11 is needed to get compatibility with OpenSSL 1.0.2 Cheers, Nick