The Basics
- Nextcloud Server version (e.g., 29.x.x):
No known yet
- Operating system and version (e.g., Ubuntu 24.04):
Ubuntu 24.04
- Web server and version (e.g, Apache 2.4.25):
Apache
- Reverse proxy and version _(e.g. nginx 1.27.2)
- Tailscale 1.80.3`
- PHP version (e.g, 8.3):
replace me
- Is this the first time you’ve seen this error? (Yes / No):
Yes
- When did this problem seem to first start?
After installation
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
AIO
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Tailscale
Summary of the issue you are facing:
I have just installed AIO on Ubuntu 24.04 following the Tailscale guide. When I try to access the Nextcloud instance via the Tailscale domain, it doesn’t return a response.
Steps to replicate it (hint: details matter!):
- Install the instance with Tailscale
- Set up the containers on Nextcloud (access via IP)
- Click the button to open the instance after the containers are deployed, or use the instance’s Tailscale domain
Log entries
Nextcloud
When I run docker logs nexcloud-aio-nextcloud on my server, I get the following error
Failed to fetch discovery endpoint from https:/nextcloud.tail.ts.net
cURL error 6: Could not resolve host: nextcloud.tail.ts.net (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://nextcloud.tail.ts.net/hosting/discovery
Web Browser
Web server / Reverse Proxy
The output of docker logs containers-nextcloud-aio-caddy-1
{"level":"error","ts":1744901388.1021264,"logger":"tls.obtain","msg":"will retry","error":"[nextcloud.tail.ts.net] Obtain: [nextcloud.tail.ts.net] solving challenge: nextcloud.tail.ts.net: [nextcloud.tail.ts.net] authorization failed: HTTP 400 urn:ietf:params:acme:error:dns - DNS problem: NXDOMAIN looking up A for nextcloud.tail.ts.net - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for nextcloud.tail.ts.net - check that a DNS record exists for this domain (ca=https://acme-staging-v02.api.letsencrypt.org/directory)","attempt":2,"retrying_in":120,"elapsed":66.929218572,"max_duration":2592000}
{"level":"info","ts":1744901501.1028893,"logger":"tls.obtain","msg":"releasing lock","identifier":"nextcloud.tail.ts.net"}
Configuration
Nextcloud
I don’t know where to find this.