Thanks Mark , upgrade of libssl1.0.0 fixed the issue of ntp. dpkg -l | grep libssl1 ii libssl1.0.0 1.0.1-4ubuntu5.38 SSL shared libraries
dpkg -l | grep openssl ii openssl 1.0.1-4ubuntu5.38 Secure Socket Layer (SSL) binary and related cryptographic tools dpkg -l | grep ntp ii ntp 1:4.2.6.p3+dfsg-1ubuntu3.11 Network Time Protocol daemon and utility programs -- 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