Our product running over RHEL has Apache 2.2.26 & OpenSSL 0.9.7 [ofcourse, pretty old].
We are currently upgrading Openssl to 0.9.8za. I have installed the latest OpenSSL RPMs.
However Apache is failing to start.
After debugging i found the issue is wrt libssl. A soft link /lib64/libssl.so.4 has been mapped to /usr/lib/libssl.so.0.9.7a. After upgradation i have mapped it as /usr/lib/libssl.so.0.9.8. While doing so, apache fails to start with no reported error message. With no other changes and only replacing softlink back to 0.9.7, apache starts fine.
Please let me know if there are any known incompatibilities between openssl 0.9.8za & Apache mod_ssl.