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[GH-ISSUE #8925] [Bug] host.docker.internal not recognized as localhost #7789

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opened 2026-11-04 17:19:27 +00:00 by bsakaguchi · 0 comments

bsakaguchi commented

2026-11-04 17:19:27 +00:00

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Originally created by @axet on GitHub (Nov 4, 2026).
Original GitHub issue: https://github.com/morluto/rea/issues/8925

Before submitting

I searched the open and closed issues for a related report.
I removed credentials, tokens, private paths, and sensitive target data.

Area

Provider or capability discovery

Observed behavior

podman/docker has internal localhost network mapping as name host.docker.internal it is local port mapper to localhost. but rea doctor does not recoginze that host as local host and refuse to connect

when ida-mcp.json configure as localhost instead of host.docker.internal it works.

Reproduction

create podman rea with ida-mcp config
create podman ida with fullly setup ida pro
trying to get back into rea container and run rea doctor

Expected behavior

i expect host.docker.internal recognized as localhost

Impact and scope

100%

REA version

6.8.0

Runtime and platform

debian trixie + podman's

Target and artifact context

No response

Interface

MCP

Earliest failure stage

Setup or provider admission

Relevant output or evidence

  - id: ida
    configured: true
    available: false
    providerVersion: null
    registrationEnvironment:
    checks[1]{name,ok,code,detail,remediation,classification}:
      registration,false,invalid_configuration,"REA_IDA_MCP_CONFIG: url: IDA MCP must use a local HTTP endpoint without URL credentials. See docs/ida-provider.md.",Set REA_IDA_MCP_CONFIG to your upstream IDA MCP registration JSON; see docs/ida-provider.md.,config_drift

Typed outcome or recovery expected

No response

Analysis or suspected cause

No response

Additional context

No response

Originally created by @axet on GitHub (Nov 4, 2026). Original GitHub issue: https://github.com/morluto/rea/issues/8925 ### Before submitting - [x] I searched the open and closed issues for a related report. - [x] I removed credentials, tokens, private paths, and sensitive target data. ### Area Provider or capability discovery ### Observed behavior podman/docker has internal localhost network mapping as name `host.docker.internal` it is local port mapper to localhost. but `rea doctor` does not recoginze that host as local host and refuse to connect when ida-mcp.json configure as `localhost` instead of `host.docker.internal` it works. ### Reproduction 1. create podman rea with ida-mcp config 2. create podman ida with fullly setup ida pro 3. trying to get back into rea container and run `rea doctor` ### Expected behavior i expect host.docker.internal recognized as localhost ### Impact and scope 100% ### REA version 6.8.0 ### Runtime and platform debian trixie + podman's ### Target and artifact context _No response_ ### Interface MCP ### Earliest failure stage Setup or provider admission ### Relevant output or evidence ``` - id: ida configured: true available: false providerVersion: null registrationEnvironment: checks[1]{name,ok,code,detail,remediation,classification}: registration,false,invalid_configuration,"REA_IDA_MCP_CONFIG: url: IDA MCP must use a local HTTP endpoint without URL credentials. See docs/ida-provider.md.",Set REA_IDA_MCP_CONFIG to your upstream IDA MCP registration JSON; see docs/ida-provider.md.,config_drift ``` ### Typed outcome or recovery expected _No response_ ### Analysis or suspected cause _No response_ ### Additional context _No response_

bsakaguchi added the

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2026-11-04 17:19:27 +00:00

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Reference

morluto/rea#7789

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