Someone decided to disable all backwards compatibility when they built OpenSSL 1.1.0. Unfortunately when we test built against OpenSS1 1.1.0 we did a default build which doesn't do this. Anyway the fix is simple. diff --git a/lib/dns/openssl_link.c b/lib/dns/openssl_link.c index 7f74489937..88e7921d46 100644 --- a/lib/dns/openssl_link.c +++ b/lib/dns/openssl_link.c @@ -204,9 +204,9 @@ dst__openssl_init(const char *engine) { goto cleanup_mutexalloc; CRYPTO_set_locking_callback(lock_callback); CRYPTO_set_id_callback(id_callback); -#endif ERR_load_crypto_strings(); +#endif rm = mem_alloc(sizeof(RAND_METHOD) FILELINE); if (rm == NULL) {