SBC-IOT

PiHole-Unbound-PiVPN

1. Install PiHole from: https://pi-hole.net/
2. Install unbound and follow tutorial from: https://docs.pi-hole.net/guides/dns/unbound/

After step 1 and 2, and after setting DNS server IP in my Mikrotik router I was having DNS loop which was causing excessing concurrent DNS request in PiHole.

This link provided a solution: https://www.reddit.com/r/pihole/comments/rnoyw0/comment/hpts7o1/?utm_source=share&utm_medium=ios_app&utm_name=iossmf&context=3

sudo nano /etc/resolvconf.conf

go to bottom and find and delete

unbound_conf=/etc/unbound/unbound.conf.d/resolvconf_resolvers.conf

now edit this file

sudo nano /etc/unbound/unbound.conf.d/resolvconf_resolvers.conf

replace everything inside with the following

forward-zone:
        name: "."
        forward-tls-upstream: yes
        forward-addr: 2606:4700:4700::1111@853
        forward-addr: 2606:4700:4700::1001@853
        forward-addr: 1.1.1.1@853
        forward-addr: 1.0.0.1@853
        forward-addr: 8.8.8.8@53
        forward-addr: 8.8.4.4@53

Restart unbound

sudo service unbound restart

This solved the concurrent DNS request issues with PiHole

3. Install and configure PiVPN

Now I was having 2 problems:

• 1. Devices can connect to vpn but can not access internet or local network. PiVPN somehow did not finish iptable setup. Running debug solved this issue.

sudo pivpn -d

• 2. the configs folder which holds the files required to create the tunnels were inaccessible. Take ownership of the folder and files.

sudo chown username:username -R configs