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claude-memory/graph/problems/pi-hole-v6-dns-sync-script-needs-update-for-new-toml-config-dc3ed1.md
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id type title tags importance confidence created updated relations
dc3ed16c-18db-4011-b866-3730316cd68d problem Pi-hole v6 DNS sync script needs update for new TOML config format
pihole
npm
dns
sync
v6
toml
homelab
troubleshooting
0.7 0.8 2026-02-07T15:12:17.978779+00:00 2026-02-07T15:12:17.978779+00:00
target type direction strength
fae8f322-d5c6-4ffb-9735-49e9f46940e8 SOLVES incoming 0.5

Problem

The npm-pihole-sync.sh script at /mnt/NV2/Development/claude-home/server-configs/networking/scripts/npm-pihole-sync.sh is outdated for Pi-hole v6.

What happened:

  • User removed pd.manticorum.com NPM proxy rule to route through Cloudflare
  • Script synced NPM hosts but didn't remove pd.manticorum.com from Pi-hole DNS
  • Caused continued 502 errors when accessing pd.manticorum.com API

Root Cause: Pi-hole v6 changed DNS record storage:

  • OLD (v5): /etc/pihole/custom.list
  • NEW (v6): /etc/pihole/pihole.toml (dns.hosts array in TOML format) AND /etc/pihole/hosts/custom.list

Manual Fix Applied: ssh pihole "docker exec pihole sed -i '/pd.manticorum.com/d' /etc/pihole/pihole.toml /etc/pihole/hosts/custom.list && docker exec pihole pihole reloaddns"

Script Requirements:

  1. Update /etc/pihole/hosts/custom.list (traditional format)
  2. Update /etc/pihole/pihole.toml hosts array (TOML format: hosts = ["IP DOMAIN", ...])
  3. Use 'pihole reloaddns' instead of 'pihole restartdns reload'
  4. Fix secondary pihole SSH (use IP with -o StrictHostKeyChecking=no instead of hostname)

Challenges:

  • Pi-hole container has NO python3, NO perl
  • Need pure shell/sed/awk solution
  • TOML hosts array is multi-line regex replacement

TOML Format: hosts = [ "10.10.0.16 domain1.com", "10.10.0.16 domain2.com" ]

Secondary Pihole:

  • IP: 10.10.0.226
  • User: cal
  • Need: ssh -o StrictHostKeyChecking=no cal@10.10.0.226

Files:

  • Script: /mnt/NV2/Development/claude-home/server-configs/networking/scripts/npm-pihole-sync.sh
  • Primary Pi-hole: 10.10.0.16 (pihole container)
  • Secondary Pi-hole: 10.10.0.226 (pihole container)