# Port list to be opened

**URL:** https://community.creditcoin.org/t/port-list-to-be-opened/391
**Category:** Mining
**Created:** [September 1, 2021, 9:07am UTC](https://community.creditcoin.org/t/port-list-to-be-opened/391 "2021-09-01T09:07:10Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![kang](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@kang](https://community.creditcoin.org/u/kang)
#### Post date: [September 1, 2021, 9:07am UTC](https://community.creditcoin.org/t/port-list-to-be-opened/391/1 "2021-09-01T09:07:10Z")

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Is there any guide about port numbers?

Because I’d like to keep my mining server port minimized, I want to close all other unnecessary port.

I tried with 8800, 4004, 55555, 8008 which are found from docker-compose.yaml file and mining guide.

But sawtooth-validator-default container seems to need more opened port. (It throws error number 110, connection time out error)

It should be good if mining guide include used port list.

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### Author: ![will\_gluwa](https://yyz1.discourse-cdn.com/flex031/user_avatar/community.creditcoin.org/will_gluwa/32/9_2.png) [@will\_gluwa](https://community.creditcoin.org/u/will_gluwa)
#### Post date: [September 1, 2021, 8:45pm UTC](https://community.creditcoin.org/t/port-list-to-be-opened/391/2 "2021-09-01T20:45:36Z")

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Only port 8800 needs to be opened.

From [https://docs.creditcoin.org/creditcoin-miners-manual#server-docker-compose-yaml:](https://docs.creditcoin.org/creditcoin-miners-manual#server-docker-compose-yaml:)

> - Replace `<insert.your.ip>` on lines 51 and 61 with [your public IPv4 address.](https://www.whatismyip.com/) The public IPv4 address must be static and not generated from DHCP. Do not include the `"<" and ">"` signs. For example: `--endpoint tcp://13.93.178.197:8800 \`

> - To allow others to access your node, the port used in the above line (e.g. 8800) should be [opened in your firewall and forwarded in your router](https://www.wikihow.com/Open-Ports).

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### Author: ![kang](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@kang](https://community.creditcoin.org/u/kang)
#### Post date: [September 2, 2021, 3:10pm UTC](https://community.creditcoin.org/t/port-list-to-be-opened/391/3 "2021-09-02T15:10:36Z")

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Thanks to confirm. I think my problem was because I didn’t restart iptables service. So accepted rule doesn’t applied.