@nayan: your libssl1.0.0 package hasn't been updated in a long time, is too old, and contains numerous security vulnerabilities.
You need to update it to the version that matches your openssl package (1.0.1-4ubuntu5.38) by installing all security updates: $ sudo apt-get update $ sudo apt-get dist-upgrade -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1630877 Title: 1:4.2.6.p3+dfsg-1ubuntu3.11 - OPENSSL_1.0.0 not defined in file libcrypto.so.1.0.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1630877/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs