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docs: firewalld 9200 + VeciGate path for Forgejo git-SSH

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Hernâni Marques 2026-07-10 14:44:31 +02:00
parent 8ebcd90111
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24
configs/firewalld/public-ports.md
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@ -1,10 +1,10 @@
# firewalld zone public (eno1)
## Current (2026-07-09)
## Current (2026-07-10)
```
firewall-cmd --list-ports
# 80/tcp 443/tcp 8080/tcp 9000/tcp 9001/tcp 23235/tcp
# 80/tcp 443/tcp 8080/tcp 9000/tcp 9001/tcp 23235/tcp 9200/tcp
```
| Port | Purpose |
@ -14,9 +14,19 @@ firewall-cmd --list-ports
| 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) |
| 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
```
### Why 443 is required again
IPv4 public HTTPS is DNAT’d to **9001**, so opening only 9001 was enough.
@ -24,9 +34,17 @@ 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
| 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 |