For this sort of thing, what I tend to do is write doctor scripts that check this kind of stuff "out of band". Can be tricky, but like "have credential stored i

For this sort of thing, what I tend to do is write doctor scripts that check this kind of stuff "out of band". Can be tricky, but like "have credential stored in a file, then have an out of band script that checks that the credentials can reach a server" can save a lot of headaches. "Did you run the doctor script?"