docs(admin): document share link URL behaviour with multiple trusted domains#14989
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📖 Documentation Preview📄 1 changed documentation pageLast updated: Wed, 27 May 2026 09:03:45 GMT |
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…domains When multiple trusted_domains are configured, generated URLs (share links, download links, notifications) use the hostname from the incoming request. This is a common source of confusion for admins running split-horizon DNS or dual internal/external access, as share links created internally contain the internal hostname and break for external users. Add a new subsection to reverse_proxy_configuration.rst explaining the behaviour and showing how to force a canonical hostname via overwritehost and overwrite.cli.url. Fixes #11623 Signed-off-by: skjnldsv <skjnldsv@protonmail.com>
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☑️ Resolves
What and why
When multiple
trusted_domainsare configured, Nextcloud generates URLs(share links, download links, notifications) using the hostname from the
incoming request. In split-horizon DNS or dual-access setups (internal
cloud.local+ externalcloud.example.com), share links createdinternally contain the internal hostname and break for external users.
The fix (
overwritehost+overwrite.cli.url) was already mentionedelsewhere in the docs but the connection to this specific problem was never
made explicit. This adds a dedicated subsection to
reverse_proxy_configuration.rstexplaining the behaviour and showingthe correct config.
🖼️ Screenshots
No visual/layout changes — prose and code block addition only.
✅ Checklist
codespellor similar and addressed any spelling issues