Is it possible to force Pi-hole to use swap?

[DL6ER]

@xlite

use Pi-hole as a DHCP server

I do the same.

@xlite

your screenshot really does confuse me

Then probably more confusion ahead. Same screenshot with your list:

@xlite

Note: I have been noticing a LOT of in-addr.arpa pings to my device roughly on the hour, every hour.

We're aware of this. It is an issue in network with many devices. We already have a fix for this and testing is ongoing. If you like to join the tests yourself, read this topic and use the checkout command I mentioned:

Pi-hole Reverse DNS queries every hour

Anyone who want to try my idea can now run: pihole checkout ftl fix/hourly_PTR_requests and continue to monitor the PTR request spikes (hopefully, there are none). As mentioned above, I have the new option REFRESH_HOSTNAMES defaulting to IPV4. You can also try to switch to NONE to get completely rid of trying to resolve clients hourly. Any testing is highly appreciated as my local testings always only happen in a rather quiet network without any Windows or Apple devices. You can always use p…

I'm also wondering how many clients you have on you network. Please share the output of the command @jfb mentioned and also the output of

ls -lh /dev/shm