I am making changes to my code (html/php) and they are not showing up in the browser wen the page renders. I tried using an incognito window to see if it was caching on my side, but that doesn't seem to be the case. Is apache caching? or something else? how can I clear the cache? Refresh it on demand or disable temporarily while I am making changes?

Image Ubuntu 18.04 x64 Size 1 vCPUs 1GB / 25GB Disk

Thanks
John