docs: verify firewalld 9200 for Forgejo git-SSH

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Hernâni Marques 2026-07-10 14:45:56 +02:00
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@ -68,7 +68,7 @@ sudo systemctl reload caddy
|-------|------|
| **VeciGate IPv4** | WAN **9200**`192.168.100.95:9200`; hairpin LAN/LAN2 → public A:9200 |
| **VeciGate IPv6** | WAN→LAN forward **tcp/9200** |
| **koopa firewalld** | `public` **9200/tcp** |
| **koopa firewalld** | `public` **9200/tcp** (verified 2026-07-10: LAN + hairpin + `ssh -T`) |
Docs: `../vecigate-admin-log` (`ip/firewall/nat/`, `ipv6/firewall/filter/`, `docs/CHANGELOG.md`);
host ports: `configs/firewalld/public-ports.md`.

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@ -7,7 +7,7 @@
→ topic: `2026-07-10--bonfire-federate.md`; secrets: `koopa-admin-secrets/…/koopa-bonfire/`
- **Forgejo rootless** on `git.hacktivism.ch` (HTTP **9024**, git-SSH **9200**); no free registration; admin `hernani`
→ topic: `2026-07-10--forgejo-rootless.md`; secrets: `koopa-admin-secrets/…/koopa-forgejo/`
- **git-SSH :9200** exposed: VeciGate DNAT/hairpin + IPv6 forward; koopa firewalld **9200/tcp**
- **git-SSH :9200** exposed + **verified**: VeciGate DNAT/hairpin + IPv6; firewalld **9200/tcp** (LAN/hairpin/`ssh -T` OK)
→ vecigate-admin-log CHANGELOG 2026-07-10; `configs/firewalld/public-ports.md`
- **admin-log origin** → Forgejo `hernani/koopa-admin-log` on git.hacktivism.ch (public; SSH :9200)
→ topic: `2026-07-10--admin-log-origin-forgejo.md`

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@ -1,50 +1,61 @@
# firewalld zone public (eno1)
## Current (2026-07-10)
## Current (2026-07-10, verified)
Expected open ports after Forgejo git-SSH:
```
firewall-cmd --list-ports
# 80/tcp 443/tcp 8080/tcp 9000/tcp 9001/tcp 23235/tcp 9200/tcp
```
| Port | Purpose |
|------|---------|
| 80/tcp | `http-proxy.socket` → Caddy 9000 (needed for **IPv6** WAN HTTP/ACME) |
| **443/tcp** | `https-proxy.socket` → Caddy 9001 (**required for IPv6** AAAA `:15d6`) |
| 9000/tcp | Caddy HTTP (VeciGate IPv4 WAN:80 → 9000) |
| 9001/tcp | Caddy HTTPS (VeciGate IPv4 WAN:443 → 9001) |
| 8080/tcp | Tor OR |
| 23235/tcp | SSH (VeciGate maps public 23235 → host 22) |
| **9200/tcp** | **Forgejo git-SSH** (VeciGate WAN/hairpin/IPv6 → host 9200 → container 2222) |
| dhcpv6-client, ssh | services |
### Add / verify 9200
```bash
sudo firewall-cmd --permanent --add-port=9200/tcp
sudo firewall-cmd --reload
sudo firewall-cmd --list-ports
ss -lntp | grep 9200
# … 80/tcp 443/tcp 8080/tcp 9000/tcp 9001/tcp 23235/tcp 9200/tcp
```
### Why 443 is required again
| Port | Purpose | LAN probe (2026-07-10) |
|------|---------|------------------------|
| 80/tcp | `http-proxy` → Caddy 9000 (IPv6 HTTP/ACME) | via Caddy path |
| **443/tcp** | `https-proxy` → Caddy 9001 (IPv6 HTTPS) | via Caddy path |
| 9000/tcp | Caddy HTTP (WAN:80 → 9000) | **OK** |
| 9001/tcp | Caddy HTTPS (WAN:443 → 9001) | **OK** |
| 8080/tcp | Tor OR | — |
| 23235/tcp | (legacy list; host SSH is :22, WAN via VeciGate 23235→22) | — |
| **9200/tcp** | **Forgejo git-SSH** (podman rootlessport) | **OK** after add+reload |
IPv4 public HTTPS is DNATd to **9001**, so opening only 9001 was enough.
IPv6 has **no DNAT**: clients hit `2a02:168:53a8:0:d584:9e34:13cf:15d6:443`
directly. Without 443/tcp in firewalld, AAAA looked like `ERR_ADDRESS_UNREACHABLE`
/ connect timeout while IPv4 still worked.
### Why 9200
Forgejo advertises `SSH_PORT=9200`. Rootless podman publishes `0.0.0.0:9200→2222`.
VeciGate DNATs WAN:9200 and hairpins public A:9200; IPv6 forwards :9200 to koopa.
Without firewalld **9200/tcp**, external/LAN clients see **connection refused** even
though `ss` shows LISTEN on the host (local-only path still works).
## History
### Not opened on purpose
| Port | Note |
|------|------|
| 443 removed earlier | “old host HTTPS before DNAT to 9001” — re-added 2026-07-09 for IPv6 |
| 8082/tcp removed | old Podman ACME |
| **9200/tcp added** | 2026-07-10 Forgejo git-SSH |
| 90209024 | rootless apps; public HTTP only via Caddy → `127.0.0.1:90xx` |
| 9024 | Forgejo HTTP internal to Caddy only |
LAN `nc` to 9021/9024 → **connection refused** is expected without firewalld open (and not required).
### Commands
```bash
sudo firewall-cmd --permanent --add-port=9200/tcp
sudo firewall-cmd --reload # or systemctl restart firewalld
sudo firewall-cmd --list-ports
```
### Verify (from another host on LAN / WAN)
```bash
nc -vz 192.168.100.95 9200
nc -vz 212.51.151.254 9200 # hairpin / public A
ssh -p 9200 -T git@git.hacktivism.ch
# expect: Hi there, … authenticated … Forgejo does not provide shell access.
```
### Why 443
IPv4 HTTPS is DNATd to **9001**. IPv6 has **no DNAT** — clients hit host **:443** directly.
### Why 9200
Forgejo advertises `SSH_PORT=9200`. Traffic hits **host:9200** (not Caddy). Without firewalld **9200/tcp**, clients get **connection refused** even while `ss` shows LISTEN and localhost works.
## History
| When | Change |
|------|--------|
| 2026-07-09 | 443/tcp re-added for IPv6 |
| 2026-07-10 | **9200/tcp** for Forgejo git-SSH (verified LAN + hairpin + SSH auth) |