I have content that was deleted several years ago and from time to time Googlebot still attempts to access those pages, filling up my logs with lots of 404, making the 'real' problems harder to find and to read.
I have found Google is still crawling and indexing my old, dummy, test pages which now are 404 not found already, but that question is more about removing pages from the index. My pages are no longer indexed, but I'd like Google to stop attempting to open them.
I also believe this is not related to How to effectively close a page?. The page was closed years ago (maybe we did it wrong back then), but I would like to prevent Google from still crawling those old URL's (they have already been removed from the index years ago).
Would a 410 work? Indicating that the content will not come back? Or is this something we have no control over?