# Inspecting a fly app's --network setting

**URL:** <https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163>\
**Category:** Questions / Help\
**Tags:** login-only\
**Created:** [July 13, 2023, 11:14pm UTC](https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163 "2023-07-13T23:14:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jjak82](https://avatars.discourse-cdn.com/v4/letter/j/35a633/32.png) [@jjak82](https://community.fly.io/u/jjak82)\
**Post date:** [July 13, 2023, 11:14pm UTC](https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163/1 "2023-07-13T23:14:52Z")

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I’m creating apps with a custom network id (`fly app create --network x`).

some questions:

- Can I pick any string for x? Does it need to be unique at some scope (global? org?). Will the app create command fail if X is not acceptable?
- What are some ways I can verify an app’s network id, post app creation?

I’m setting `--network` for security reasons - I would like to increase isolation between different apps.

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**Author:** ![kwaw](https://avatars.discourse-cdn.com/v4/letter/k/8491ac/32.png) [@kwaw](https://community.fly.io/u/kwaw)\
**Post date:** [July 14, 2023, 9:33am UTC](https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163/2 "2023-07-14T09:33:13Z")

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> Can I pick any string for x?

Yes, you can pick any string.

> Does it need to be unique at some scope (global? org?)

Yes it has to unique at the org scope.

> Will the app create command fail if X is not acceptable?

It shouldn’t fail if you’re passing a “normal” string. If you pass something weird, it will probably fail.

> What are some ways I can verify an app’s network id, post app creation?

There are no ways that i’m aware off. You will have to do that book keeping on your end.  
fwiw, it should be relatively easy to expose on our end so if I have some time today, I can look that.

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**Author:** ![jjak82](https://avatars.discourse-cdn.com/v4/letter/j/35a633/32.png) [@jjak82](https://community.fly.io/u/jjak82)\
**Post date:** [July 14, 2023, 5:00pm UTC](https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163/3 "2023-07-14T17:00:25Z")

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Thank you very much!

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**Author:** ![system](https://global.discourse-cdn.com/fly1/original/3X/6/e/6e8955d00cb218e186ebbe3a6ab06fefdce15290.svg) [@system](https://community.fly.io/u/system)\
**Post date:** [July 21, 2023, 5:00pm UTC](https://community.fly.io/t/inspecting-a-fly-apps-network-setting/14163/4 "2023-07-21T17:00:44Z")

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Closed on July 21, 2023, 5:00pm UTC

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