Rambabu V <ram.wissen@xxxxxxxxx> writes: > i have installed postgresql 13 using packages/tried same using lower > versions as well, but replication not working, getting below error. > 2020-12-19 02:48:22.346 PST [3574] FATAL: could not load library > "/usr/pgsql-13/lib/libpqwalreceiver.so": /usr/pgsql-13/lib/libpq.so.5: > symbol X509_get_signature_nid, version libcrypto.so.10 not defined in file > libcrypto.so.10 with link time reference Apparently this copy of libpq was built against a newer version of OpenSSL than what you have installed locally. The man page for X509_get_signature_nid says it was added in OpenSSL 1.0.2, in case that helps. You need to find or build a version of Postgres that's intended for your specific platform version. Alternatively, maybe you would be better off moving to a newer platform version, or at least installing a newer OpenSSL version. Anything older than 1.0.1 is considered outright insecure these days. regards, tom lane
