DNS issue - Domains not resolving despite successful deployment (DNS_PROBE_FINISHED_NXDOMAIN)
zentra-test
HOBBYOP

a month ago

I'm experiencing a persistent DNS resolution issue. My deployment shows as "Active" and logs confirm the server is running successfully, but all generated domains return DNS_PROBE_FINISHED_NXDOMAIN errors.

Issue:

- Deploy logs show: "Server running on 0.0.0.0:8080"

- Database connects successfully: "The database is already in sync with the Prisma schema"

- Deployment status shows "Active" and "Online"

- But the domain returns: DNS_PROBE_FINISHED_NXDOMAIN

multiple Domains tried (all fail with same DNS error):

Steps I've taken:

1. Deleted and regenerated domains multiple times

2. Created a completely new Railway project

3. Verified Public Networking is enabled

4. Cleared browser DNS cache and flushed system DNS

5. Tested from multiple browsers and devices

Project Details:

- Build: Docker

- Server binds to 0.0.0.0:8080

- Region: us-west2

The server is clearly running (I can see API activity in logs), but traffic isn't being routed to the container. This appears to be a Railway networking/DNS provisioning issue.

$10 Bounty

2 Replies

So DNS_PROBE_FINISHED_NXDOMAIN is unrelated to deployment being successful. It generally means the domain name itself doesnt exist in DNS
Can you confirm following -
- the domain is attached to the correct service in your project? (if there are multiple services)

- the PORT variable of the service is set to 8080?


heimdall

So DNS_PROBE_FINISHED_NXDOMAIN is unrelated to deployment being successful. It generally means the domain name itself doesnt exist in DNSCan you confirm following - - the domain is attached to the correct service in your project? (if there are multiple services)- the PORT variable of the service is set to 8080?

DNS means the record can't be found. Changing the port won't fix this issue.

To OP:

Have you tried clearing your local DNS cache and/or setting your browser's DNS server to 1.1.1.1?

If that doesn't work, I'd try accessing the URL on a different network or check out your DNS/firewall settings.


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