Web admin page won't show up, index.php error

[deHakkelaar]

@ShowyJarl

I have a few legacy static IPs to take care of

For devices that have a static IP configured and dont invoke DHCP, you can put them in below file:

pi@ph5:~ $ sudo nano /etc/pihole/custom.list
10.0.0.1 router
10.0.0.2 noads
10.0.0.3 nas

Reload:

pi@ph5:~ $ sudo service pihole-FTL reload
pi@ph5:~ $

And test:

C:\>nslookup nas pi.hole
Server:  ph5
Address:  10.0.0.4

Name:    nas
Address:  10.0.0.3

---

C:\>nslookup 10.0.0.3 pi.hole
Server:  ph5
Address:  10.0.0.4

Name:    nas
Address:  10.0.0.3

@ShowyJarl

For this purpose, I have a question, as the VPN server will acting a little part like a DHCP server. Will this potentially conflict with the DHCP conf from pihole. After the GUI conflict with Plex, I need to be careful and think about each step as I am slowly moving forward.

The earlier bare Raspi 1 and 2 models are not well suited for running a full pledged VPN server.
This because they dont have gigabit but 100mbit instead thus all traffic, LAN and VPN, need to share that 100mbit.
And the DNS + Pi-hole gravity runs + VPN encryption + DHCP + routing going on might be a bit heavy for the Pi 1's.
Checkout below official guide that also allows the option to only route DNS traffic through the VPN tunnel and let the regular traffic take the default route to internet provided by ISP router or phone operator:

https://docs.pi-hole.net/guides/vpn/overview/

And the ZeroTier way:

How to easily use your Pi-Hole outside of your personal network

You've your Pi-Hole installed on your personal network, but you want to use it outside of your home? If that's the case stick with me and follow this tutorial that will explain to you how to integrate your Pi-Hole with Zerotier, an easy virtual network accessible from anywhere around the world where all traffic is encrypted end-to-end! Advantages of using Zerotier instead of a traditional VPN Zerotier works even on your personal network so you won't have to change your DNS settings nor connec…