# Enabling SSL for Pi-Hole Admin Interface (lighttpd)

This video is outdated after I found updating Pi-hole will overwrite the SSL config. The new video showing updated steps can be found at: https://youtu.be/yUdmBGe9wYA

## Prerequisites

- A XCA PKI database https://youtu.be/ezzj3x207lQ

## Create Your SSL Certificate

1. Launch XCA
2. Open the PKI database if it is not already (File > Open DataBase), enter password
3. Click on the Certificates tab, right click on your Intermediate CA certificate
4. Select New
5. On the Source tab, make sure Use this Certificate for signing is selected
6. Verify your Intermediate CA certificate is selected from the drop down
7. Click the Subject tab
8. Complete the Distinguished Name section

   internalName: Pi-Hole SSL
   countryName: US
   stateOrProvinceName: Virginia
   localityName: Northern
   organizationName: i12bretro
   organizationUnitName: i12bretro Certificate Authority
   commonName: pihole.i12bretro.local

9. Click the Generate a New Key button
10. Enter a name and set the key size to at least 2048
11. Click Create
12. Click on the Extensions tab
13. Select End Entity from the type list
14. Click Edit next to Subject Alternative Name
15. Add any DNS or IP addresses that the certificate will identify
16. Update the validity dates to fit your needs
17. Click the Key Usage tab
18. Under Key Usage select Digital Signature, Key Encipherment
19. Under Extended Key Usage select Web Server and Web Client Authentication
20. Click the Netscape tab
21. Select SSL Server
22. Click OK to create the certificate

## Exporting Required Files

1. In XCA, click on the Certificates tab
2. Right click the Intermediate CA certificate > Export > File
3. Set the file name with a .pem extension and verify the export format is PEM chain (*.pem)
4. Click OK
5. Right click the SSL certificate > Export > File
6. Set the file name with a .pem extension and verify the export format is PEM + Key (*.pem)
7. Click OK

## Applying the Certificates

1. Download PuTTY Download
2. Connect to the Raspberry Pi via PuTTY
   1. If SSH is not enabled on the Raspberry Pi, enable it using Raspberry Pi Config
   2. Launch PuTTY
   3. Input the Raspberry Pi hostname or IP address
   4. Click Connect
3. Install xrdp to simplify administration by running the following command
   sudo apt-get install xrdp
4. Connect to the Raspberry Pi via Remote Desktop Client
5. Copy the certificates exported above to the Pi
6. Copy the certificates exported above to /etc/lighttpd
   cp /home/pi/Downloads/PiHole.pem /etc/lighttpd
   cp /home/pi/Downloads/ca-chain.pem /etc/lighttpd
7. Edit lighttpd.conf
   mousepad
8. File > Open /etc/lighttpd/lighttpd.conf
9. Add "mod_openssl" to server.modules
10. Add the following lines

    server.name = "pihole.i12bretro.local"
    server.port = 443
    ssl.engine = "enable"
    ssl.pemfile = "PiHole.pem"
    ssl.ca-file = "ca-chain.pem"

11. File > Save > /home/pi/Downloads/lighttpd.conf
12. In terminal, paste the following commands
    cp /home/pi/Downloads/lighttpd.conf /etc/lighttpd
    service lighttpd restart
13. Open a web browser and navigate to PiHole via https://