Pandore/homarr
Public Access
1
0 Fork 0
Code Actions Activity

fix: make internal nginx proxy tolerate disabled IPv6 (#4596) (#6539)

Browse Source 
* fix: keep nginx IPv6 listen only when IPv6 is available (#4596)

Commit 2c48b1896 (1.45.2) made the internal nginx proxy listen on the IPv6
wildcard ('listen [::]:7575;'), which aborts nginx startup on hosts/VMs with
IPv6 disabled:

    nginx: [emerg] socket() [::]:7575 failed (97: Address family not supported by protocol)

A plain revert would reintroduce #2697 and break IPv6-only/dual-stack
environments where this listener is required. Instead, only emit the IPv6
listen directive when the host actually has IPv6 configured.

Reuse the envsubst step run.sh already performs: compute NGINX_LISTEN_IPV6
from /proc/net/if_inet6 and substitute it into the template. proc files always
report size 0, so presence is detected by grepping the file (not 'test -s').

* fix: honor HOMARR_DISABLE_IPV6 override in nginx config generation

Review feedback on #6539: give users an explicit opt-out from the IPv6
listener even when the host reports IPv6. The issue reporter (#4596)
requested such an env var, and the pattern matches the existing
ENABLE_DNS_CACHING IPv6 toggle. Auto-detection behavior is unchanged when
the var is unset. Validated in containers: override wins, dual-stack
preserved by default, IPv4-only fallback on IPv6-less hosts.
This commit is contained in:
Thomas authored and GitHub committed 2026-08-08 11:16:49 +02:00
1 parent 6141d505e4
commit 987c9ade18
3 files changed
+19 -9
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

apps/docs/docs/advanced/environment-variables/index.mdx
+8 -7
View File
@@ -25,13 +25,14 @@ This is especially useful for [docker secrets](https://docs.docker.com/engine/sw
Using the `PUID` and `PGID` will require you to set the correct permissions on the mounted volumes and if used the docker socket. See more in the [Running as a different user](/docs/advanced/running-as-different-user) documentation.
:::
| Environment Variable | Description | Possible values | Default |
| ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------- | ------- |
| `PUID` | User ID to run the container as | Any valid user ID | `0` |
| `PGID` | Group ID to run the container as | Any valid group ID | `0` |
| `LOG_LEVEL` | Log level to use | `debug` / `info` / `warn` / `error` | `info` |
| `NO_EXTERNAL_CONNECTION` | Disables Homarr's internet-backed requests, including update checks, weather, and RSS feeds | `true` or `false` | `false` |
| `ENABLE_DNS_CACHING` | Enables dns caching. Enabled by default, but if you experience issues with IPv6 or static IPs, see [#4006](https://github.com/homarr-labs/homarr/issues/4006) or disable this flag | `true` or `false` | `true` |
| Environment Variable | Description | Possible values | Default |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------- | ------- |
| `PUID` | User ID to run the container as | Any valid user ID | `0` |
| `PGID` | Group ID to run the container as | Any valid group ID | `0` |
| `LOG_LEVEL` | Log level to use | `debug` / `info` / `warn` / `error` | `info` |
| `NO_EXTERNAL_CONNECTION` | Disables Homarr's internet-backed requests, including update checks, weather, and RSS feeds | `true` or `false` | `false` |
| `ENABLE_DNS_CACHING` | Enables dns caching. Enabled by default, but if you experience issues with IPv6 or static IPs, see [#4006](https://github.com/homarr-labs/homarr/issues/4006) or disable this flag | `true` or `false` | `true` |
| `HOMARR_DISABLE_IPV6` | Disables the IPv6 listener of the internal nginx proxy, even when the host supports IPv6. IPv6 is normally disabled automatically when the host has no IPv6 configured. See [#4596](https://github.com/homarr-labs/homarr/issues/4596) | `true` or `false` | `false` |
## Authentication