Is the OpenSSL version being used built on the platform that it is run on? You cannot use a version compiled on a newer platform in an older environment. -Tom -----Original Message----- From: openssl-users <openssl-users-bounces@xxxxxxxxxxx> On Behalf Of Tim Culhane Sent: Thursday, July 8, 2021 10:56 AM To: openssl-users@xxxxxxxxxxx Subject: installing OpenSSL 1.1.1 on RedHat 6.x Hi, We have a customer who is running our product on a RedHat 6.x server. Our product uses OpenSSL 1.1.1 to handle secure connections. Initial testing by the customer is showing segmentation faults in OpenSSL during the handshake process. We have successfully tested our product on CentOS 7.x servers. I know that RedHat certainly doesn't ship recent versions of OpenSSL for RedHat 6.x. However it is still possible to install later OpenSSL versions to run side-by-side the system installation. What I'm wondering is, would there be a technical reason why OpenSSL 1.1.1 would not work correctly on a RedHat 6.x system? For the record the customer has tried with OpenSSL 1.1.1g and 1.1.1k with similar results. Many thanks, Tim