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migration: fill in the new box addresses, decide IPv6, add box specs

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New box: 179.237.86.116 / 2001:1600:18:206::89, 4CPU/12GB/250GB,
Ubuntu 26.04 LTS, one free snapshot slot, reverse DNS unset on both
addresses. IPv6 exists, so the 18 AAAA records are repointed rather
than deleted.
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inference-bot committed 2026-10-30 17:58:48 +00:00
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commit 3a89c77cfc
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dns-change-sheet.md
+53 -39
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@@ -17,43 +17,43 @@ every change below is manual. **Nothing here is time-sensitive except the TTL lo
| Name | Type | Current | Set to |
|---|---|---|---|
| `chat-legacy.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `chat.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `cloud.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `dashboard.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `docs.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `email.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `forum.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `gateway.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `git.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `matrix.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `my.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `newsletter.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `panel.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `portal.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `search.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `status.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `vault.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `www.inference.coop` | A | `179.199.135.72` | `<new Infomaniak IPv4>` |
| `chat-legacy.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `chat.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `cloud.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `dashboard.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `docs.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `email.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `forum.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `gateway.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `git.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `matrix.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `my.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `newsletter.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `panel.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `portal.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `search.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `status.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `vault.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `<new IPv6 — or delete every AAAA>` |
| `chat-legacy.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `chat.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `cloud.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `dashboard.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `docs.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `email.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `forum.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `gateway.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `git.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `matrix.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `my.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `newsletter.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `panel.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `portal.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `search.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `status.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `vault.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `www.inference.coop` | A | `179.199.135.72` | `179.237.86.116` |
| `chat-legacy.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `chat.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `cloud.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `dashboard.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `docs.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `email.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `forum.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `gateway.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `git.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `matrix.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `my.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `newsletter.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `panel.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `portal.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `search.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `status.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
| `vault.inference.coop` | AAAA | `2a02:4780:6e:83fd::1` | `2001:1600:18:206::89` |
`www` has no app behind it in the Cloudron inventory — confirm whether it is an alias,
a redirect, or stale before touching it.
@@ -70,8 +70,9 @@ a redirect, or stale before touching it.
## Sequence (see the main runbook §4)
1. A day early: set every A and AAAA TTL to 300 s.
2. At cutover: point A records at the new IP; repoint or **delete** every AAAA record
(decide in advance — an IPv6-capable client or homeserver left on Hostinger's address
2. At cutover: point A records at **`179.237.86.116`**; repoint every AAAA record to **`2001:1600:18:206::89`**
(the new box has IPv6, so this is a repoint, not a delete — but it must happen in
the same pass: an IPv6-capable client or homeserver left on Hostinger's address
reaches the old box even after the A switch).
3. Verify with the resolver set below, not one resolver.
@@ -80,3 +81,16 @@ for h in inference.coop my.inference.coop matrix.inference.coop gateway.inferenc
dig +short A $h @1.1.1.1; dig +short A $h @8.8.8.8; dig +short AAAA $h @1.1.1.1
done
```
## The new box (given 2026-10-30)
- **IPv4** `179.237.86.116` · **IPv6** `2001:1600:18:206::89`
- 4 CPU · 12 GB RAM · **250 GB disk** · unlimited traffic
- **1 snapshot slot free** — take a snapshot *after* a clean restore and *before* the DNS
switch, so a bad restore is a revert rather than a rebuild.
- Location Plan-les-Ouates, Switzerland (same provider as the backup target, so the
restore reads from inside Infomaniak's network).
- Ubuntu **26.04 LTS** — confirm Cloudron 9.x supports it before installing.
- **Reverse DNS is listed as "configure" for BOTH addresses.** Set PTR → `my.inference.coop`
on the IPv4 *and* the IPv6. A sending IP without matching PTR is the classic cause of
fresh-IP mail landing in spam, and DMARC here is `p=reject` on our own domain.