Issue Details
- Number
- 26484
- Title
- Error: Cannot resolve -bind address: 'bitcoind:8334=onion'
- Description
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<!-- Describe the issue -->
In my quest to finally fix #25094, I figured I need to bind the onion listen port explicitly to the external interface (`bitcoind`), not to "all interfaces" (`[::]`). So I'm using the argument
```
-bind=bitcoind:${BITCOIND_TOR_PORT}=onion
```
`/etc/hostname` is set to `bitcoind` and the `hostname` command yields the expected result. Also, both `nslookup` and `ping` can resolve the hostname to the external IP.
Note: I cannot use the numerical IP, because Docker assigns IP addresses dynamically on each invocation.
**Expected behavior**
I'd expect bitcoind to also resolve the hostname to my external IP, just like ping and nslookup do.
<!--- What behavior did you expect? -->
**Actual behavior**
<!--- What was the actual behavior (provide screenshots if the issue is GUI-related)? -->
In short, it dies.
```
bitcoind_1 | Error: Cannot resolve -bind address: 'bitcoind:8334=onion'
bitcoind_1 | Shutdown: In progress...
bitcoind_1 | Error: Cannot resolve -bind address: 'bitcoind:8334=onion'
bitcoind_1 | Shutdown: done
```
**System information**
bitcoind 24.0rc4 (self built), Docker+Compose from Ubuntu 22.04.1.
<!-- What version of Bitcoin Core are you using, where did you get it (website, self-compiled, etc)? -->
<!-- What type of machine are you observing the error on (OS/CPU and disk type)? -->
<!-- GUI-related issue? What is your operating system and its version? If Linux, what is your desktop environment and graphical shell? -->
<!-- Any extra information that might be useful in the debugging process. -->
<!--- This is normally the contents of a `debug.log` or `config.log` file. Raw text or a link to a pastebin type site are preferred. -->
- URL
-
https://github.com/bitcoin/bitcoin/issue/26484
- Closed by
-
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