Is a college credit certificate worth it?

Good evening all. I am looking into getting started with a career in IT. Currently I’m a technical operations supervisor at a cable company and have a BS in business management. I’ve been looking at a college credit certificate in network server administration program at a local college. Would this be a good pathway to a decent IT job? Since I already have a 4 year degree, I don’t really want (or have time) to pursue an associates or bachelors. Any insight would be greatly appreciated.