Disclaimer: I am running personal website on cloud, since it feels iffy to expose local IP to internet. Sorry for posting this on selfhosting, I don't know anywhere else to ask.
I am planning to multiplex forgejo, nextcloud and other services on port 80 using caddy.
This is not working, and I am having issues diagnosing which side is preventing access.
One thing I know: it's not DNS, since dig <my domain> works well.
I would like some pointers for what to do in this circumstances. Thanks in advance!
What I have looked into:
- curling localhost from the server works well, caddy returns a simple result.
curl <my domain> times out, currently trying to inspect packets - it seems like server receives TCP without HTTP.curl <my domain>:3000 displays forgejo page, as forgejo exposes at 3000 in its container, which podman routes to host 3000.
EDIT: my Caddyfile is as follows.
:80 {
respond "Hello World!"
}
http://<my domain> {
respond "This should respond"
}
http://<my domain 2> {
reverse_proxy localhost:3000
}
EDIT2: I just tested with netcat webserver, it responds fine. This narrows it down to caddy itself!
EDIT3: (Partially) solved, it was firewall routing issue. I should have checked ufw logs.
Turns out, podman needs to be allowed to route stuffs.
Now to figure out how to reverse-proxy properly.
EDIT4: Solved, created my own internal network between containers, besides the usual one connecting to the internet. Set up reverse-proxy to correctly connect to the container.
My only concern left is if I made firewall way permissive in the process. Current settings:
Status: active
To Action From
-- ------ ----
22/tcp ALLOW Anywhere
3000/tcp ALLOW Anywhere
222/tcp ALLOW Anywhere
8080/tcp ALLOW Anywhere
80/tcp ALLOW Anywhere
8443/tcp ALLOW Anywhere
Anywhere on podman1 ALLOW Anywhere
22/tcp (v6) ALLOW Anywhere (v6)
3000/tcp (v6) ALLOW Anywhere (v6)
222/tcp (v6) ALLOW Anywhere (v6)
8080/tcp (v6) ALLOW Anywhere (v6)
80/tcp (v6) ALLOW Anywhere (v6)
8443/tcp (v6) ALLOW Anywhere (v6)
Anywhere (v6) on podman1 ALLOW Anywhere (v6)
Anywhere on podman1 ALLOW FWD Anywhere on ens3
Anywhere on podman0 ALLOW FWD Anywhere on ens3
Anywhere (v6) on podman1 ALLOW FWD Anywhere (v6) on ens3
Anywhere (v6) on podman0 ALLOW FWD Anywhere (v6) on ens3
podman0 is the default podman network, and podman1 is the internal network.
I got
It is listening at the right port. But Recv-Q is nonzero, which seems quite strange.