In the case of a sysadmin job, this is how I would do it: start showing some expertise in configuring Linux virtual instances, discuss why and how you manage them, share tips and tricks you learned. That will do you a lot of good on your resume, help you land interviews, and help you convince during those interviews. Especially if you are competing with other college grads with 0 experience, you'll stand out.
In the case of a sysadmin job, this is how I would do it: start showing some expertise in configuring Linux virtual instances, discuss why and how you manage them, share tips and tricks you learned. That will do you a lot of good on your resume, help you land interviews, and help you convince during those interviews. Especially if you are competing with other college grads with 0 experience, you'll stand out.