We’re always happy when we can release a new version of Pi-hole, so today we’re announcing v4.2 of Pi-hole. Thank you to to our patrons and everyone else who continue to support us. Along with many other things, we’ve merged in the upstream code from dnsmasq v2.80. For anyone who doesn’t know, FTLDNS (pihole-FTL) is our fork of dnsmasq.
New Blocking Mode
We’ve added a new blocking mode (NODATA), where blocked requested are replied with a status code of NOERROR and A / AAAA records are empty. It’s unclear if there are advantages to this mode over others, but you’re welcome to experiment with it.
In preparation of the new API we are working on, FTLDNS will now store its data in a shared-memory space, so that the API can come in and read from that memory to fulfill requests. In short, this means FTLDNS will be even lighter as it doesn’t have to care about sending the statistics to some requester. Instead, it will concentrate on generating the statistics and the API can read FTL’s data directly, resulting in reduced delays in the API.
wpad Vulnerability Fix
We previously mentioned how you could work around a vulnerability regarding wpad entries. This fix is now in place as suggested by dnsmaq.conf.example.
Fixes And Tweaks
We updated SQLite to 3.26.0
We fixed the query status if a forwarded query was partially replied to from the cache
We now prevent multiple static DHCP entries with same IP
“NODATA responses have to be algorithmically determined from the response’s contents as there is no RCODE value to indicate NODATA. In some cases to determine with certainty that NODATA is the correct response it can be necessary to send another query.”
And I think there is some confusion, domain.tld is a domain, sub.domain.tld is also a domain. NXDOMAIN does not stop at the top level, or any level, it is a response that the requested domain does not exist. You can NXDOMAIN my.domain.tld and still have a valid domain.tld query and response.
I switched to "nodata", because the Safari browser on my ipad often stuck in reloading pages (i have to close the current browser session or switch the tab). Nodata looks better to me. And the Safari is faster at all.
The current problem with 4.2: The GUI won't longer log blocked sites correctly...