Certbot Won't Run After Installing OpenSSL 1.1.0c - undefined symbol: OPENSSL_sk_num

ImportError: /root/.local/share/letsencrypt/local/lib/python2.7/dist-packages/cryptography/hazmat/bindings/_openssl.so: undefined symbol: OPENSSL_sk_num

From what I gather letsencrypt does not support latest OpenSSL

Could be, but looking at the specific error it could be that it will be fixed if you recompile cryptography.

1 Like

@iroiban I believe if you search the Certbot issues page there have been other similar reports that were fixed once the headers & installed OpenSSL version are in-sync. You might have luck searching those issues for a way to do what @osiris suggests.

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.