Well what do you want to do with your life ? - do you want to be a pentester or a sysadmin ?
If being a pentester is what you want to do then take the interview, and if you decide to take the job then just quit from your current employer and tell them that the role wasn't what you were looking for.
Seriously, a decision that will potentially effect your career for the rest of your life shouldn't be done on the basis of etiquette, it should be done on the basis of what you want to do with your life.
Comments
Well what do you want to do with your life ? - do you want to be a pentester or a sysadmin ?
If being a pentester is what you want to do then take the interview, and if you decide to take the job then just quit from your current employer and tell them that the role wasn't what you were looking for.
Seriously, a decision that will potentially effect your career for the rest of your life shouldn't be done on the basis of etiquette, it should be done on the basis of what you want to do with your life.
I spent too long typing and you got there before me. Great point though.