[GH-ISSUE #2920] start error: port unavailable

gitea-mirror commented

2026-05-05 13:30:09 -06:00

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Originally created by @rgzn-aiyun on GitHub (May 1, 2022).
Original GitHub issue: https://github.com/fatedier/frp/issues/2920

Bug Description

start error: port unavailable

frpc Version

0.42.0

frps Version

0.42.0

System Architecture

amd64

Configurations

frpc -c frpc.ini

Logs

This error occurs a lot, No problem switching back to version 0.41.0
start error: port unavailable

bug
acquire port 22 error: port unavailable
[test] start error: port unavailable
[test] start error: acquire port 22 error: port unavailable
[test] start error: port unavailable
[test] start error: acquire port 22 error: port unavailable
[test] start error: port unavailable

Steps to reproduce

...

Affected area

Docs
Installation
Performance and Scalability
Security
User Experience
Test and Release
Developer Infrastructure
Client Plugin
Server Plugin
Extensions
Others

Originally created by @rgzn-aiyun on GitHub (May 1, 2022). Original GitHub issue: https://github.com/fatedier/frp/issues/2920 ### Bug Description start error: port unavailable ### frpc Version 0.42.0 ### frps Version 0.42.0 ### System Architecture amd64 ### Configurations frpc -c frpc.ini ### Logs This error occurs a lot, No problem switching back to version 0.41.0 start error: port unavailable bug acquire port 22 error: port unavailable [test] start error: port unavailable [test] start error: acquire port 22 error: port unavailable [test] start error: port unavailable [test] start error: acquire port 22 error: port unavailable [test] start error: port unavailable ### Steps to reproduce 1. 2. 3. ... ### Affected area - [ ] Docs - [ ] Installation - [X] Performance and Scalability - [ ] Security - [X] User Experience - [ ] Test and Release - [ ] Developer Infrastructure - [ ] Client Plugin - [ ] Server Plugin - [ ] Extensions - [ ] Others

gitea-mirror

2026-05-05 13:30:09 -06:00

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gitea-mirror commented

2026-05-05 13:30:13 -06:00

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@Becods commented on GitHub (May 1, 2022):

https://github.com/fatedier/frp/issues/2067

port unavailable means frps can't bind this port.

The reason maybe:

The port is listened by other process.

frps has no enough permissions, try to give it root permission.

@Becods commented on GitHub (May 1, 2022): https://github.com/fatedier/frp/issues/2067 > `port unavailable` means frps can't bind this port. > >The reason maybe: > > 1. The port is listened by other process. > 2. frps has no enough permissions, try to give it root permission.

gitea-mirror commented

2026-05-05 13:30:13 -06:00

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@rgzn-aiyun commented on GitHub (May 3, 2022):

#2067

port unavailable means frps can't bind this port.
The reason maybe:

The port is listened by other process.

frps has no enough permissions, try to give it root permission.

It should be a new version problem, a new parameter config_dir has been added.

@rgzn-aiyun commented on GitHub (May 3, 2022): > #2067 > > > `port unavailable` means frps can't bind this port. > > The reason maybe: > > > > 1. The port is listened by other process. > > 2. frps has no enough permissions, try to give it root permission. It should be a new version problem, a new parameter config_dir has been added.

gitea-mirror commented

2026-05-05 13:30:15 -06:00

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@github-actions[bot] commented on GitHub (Jun 3, 2022):

Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.

@github-actions[bot] commented on GitHub (Jun 3, 2022): Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.

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