# Running TCP DNS server?

**URL:** <https://community.fly.io/t/running-tcp-dns-server/757>\
**Category:** General\
**Created:** [February 15, 2021, 8:46am UTC](https://community.fly.io/t/running-tcp-dns-server/757 "2021-02-15T08:46:31Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![FrequentFlyer](https://avatars.discourse-cdn.com/v4/letter/f/d26b3c/32.png) [@FrequentFlyer](https://community.fly.io/u/FrequentFlyer)\
**Post date:** [February 1, 2022, 7:22am UTC](https://community.fly.io/t/running-tcp-dns-server/757/28 "2022-02-01T07:22:46Z")

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Hi @r0r0 , it should be, per [https://community.fly.io/t/new-feature-every-public-port-now-allowed-for-tcp-services-this-means-http-too](https://community.fly.io/t/new-feature-every-public-port-now-allowed-for-tcp-services-this-means-http-too).

Can you check [Troubleshooting your Deployment](https://fly.io/docs/getting-started/troubleshooting/#port-checking) to see if your port-related config in the `fly.toml` is per this.

You can also look in the logs to see if you find anything that looks like an error, i.e., `flyctl logs`.

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_[View the full topic](https://community.fly.io/t/running-tcp-dns-server/757)._