You are using a Red Hat derivative of Linux (e.g., CentOS/RHEL/Fedora). When trying to run a mongod command you receive this message: "/usr/bin/mongodb/bin/mongod: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory".
What should you do?
Get different installation media. If you try to install a .tgz file for Ubuntu on CentOS/RHEL/Fedora, you will get this message. The solution is to get new installation media.