Category Archives: Administration

ZTE MF286R DNS Settings

I recently subscribed to Telia’s mobile Internet service and bought 4G router they sell: ZTE MF286R. The first thing I noticed, was the absence of DNS settings, which is a no-deal for me, because I use my home DNS server as a first line of defence against ads, spam, pr0nogrąphy, malware and other unwanted websites. Thankfully, this problem is easily solvable.

Pi-hole is my DNS server and it has an integrated DHCP server functionality (i. e. it can assign IP addresses to network devices). When you appoint it as DHCP server, it’ll serve as DNS server too. To achieve this, firstly, turn-off DHCP functionality in the ZTE router settings (Advanced settings -> Router):

fig. 1 Turning-off DHCP server in ZTE MF286R router.

Secondly, turn-on DHCP server in Pi-hole (fig. 2):

fig. 2 Turning-on DHCP server in Pi-hole

That’s all.

Disabling Firefox’s DNS Over HTTPS via Windows Group Policy

  1. Download Group Policy templates for your Firefox version here
  2. Copy *.admx files to C:\Windows\PolicyDefinitions
  3. Copy *.adml files to from en-US to C:\Windows\PolicyDefinitions\en-US (or other language folder if applicable and available)
  4. Launch gpedit.msc (gpedit.msc is not available on Home versions of Windows, if you have that, I recommend using third party Group Policy editor like PolicyPlus)
  5. Navigate to Computer Configuration -> Administrative Templates -> Mozilla -> Firefox -> DNS Over HTTPS
  6. “Enabled” -> Disabled; “Locked” -> Enabled.