How to start Kerberose in Linux system?

I am facing problems when initializing mongo with Kerberos. I am working a on Linux systems. I am trying to identify the issues by setting logs, but not able to do it. After following a site and setting parameter KRB5_TRACE , I thought I was able to resolve this, but still it threw an error of some interface, which I was not able to understand. Please help in resolving this issue as soon as possible.
