I am following the instructions at https://switch2osm.org/manually-building-a-tile-server-18-04-lts/ and can view loaded tile data with the sample_leaflet.html file. However, I have reset the gis database and it currently does not contain any tile data that I can see. Yet, when I reload sample_leaflet.html in the same or an previously unused browser, the azerbaijan tile data still appears.
Since I have tried using a browser that I had never touched the tile server before, I figure the data must be cached somewhere on server. However, I am not sure how to clear that cache and return things to an entirely clean state.