[PR #3247] Host should be $proxy_host, not $host #3673

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opened 2026-02-26 08:31:31 +03:00 by kerem · 0 comments

kerem commented

2026-02-26 08:31:31 +03:00

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📋 Pull Request Information

Original PR: https://github.com/NginxProxyManager/nginx-proxy-manager/pull/3247
Author: @vbraun
Created: 10/8/2023
Status: 🔄 Open

Base: develop ← Head: use-proxy-host-instead-of-host

📝 Commits (1)

30787f7 Host should be $proxy_host, not $host

📊 Changes

1 file changed (+0 additions, -1 deletions)

View changed files

📝 docker/rootfs/etc/nginx/conf.d/include/proxy.conf (+0 -1)

📄 Description

$host is the Host sent by the user's browser. This is the correct setting if the service has built-in support for being proxied.
$proxy_host is the Host as if the browser would run on the proxy. This is the correct setting if the service does not have built-in support for reverse proxies. It is also the nginx default.
In nginx, you cannot unset the Host header. Configuring headers multiple times just sends multiple values with the http request. So there is no way to "fix" the Host by adding a custom header if it is already set.

For these reasons, Host should not be set (and default to $proxy_host). In the unlikely case that your service needs something else you can then just set a custom Host header in the GUI.

Fixes https://github.com/NginxProxyManager/nginx-proxy-manager/issues/2675

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/NginxProxyManager/nginx-proxy-manager/pull/3247 **Author:** [@vbraun](https://github.com/vbraun) **Created:** 10/8/2023 **Status:** 🔄 Open **Base:** `develop` ← **Head:** `use-proxy-host-instead-of-host` --- ### 📝 Commits (1) - [`30787f7`](https://github.com/NginxProxyManager/nginx-proxy-manager/commit/30787f7ee3d1c73d01815b18581a48c54b066c6f) Host should be $proxy_host, not $host ### 📊 Changes **1 file changed** (+0 additions, -1 deletions) <details> <summary>View changed files</summary> 📝 `docker/rootfs/etc/nginx/conf.d/include/proxy.conf` (+0 -1) </details> ### 📄 Description * $host is the Host sent by the user's browser. This is the correct setting if the service has built-in support for being proxied. * $proxy_host is the Host as if the browser would run on the proxy. This is the correct setting if the service does not have built-in support for reverse proxies. It is also the nginx default. * In nginx, you cannot unset the Host header. Configuring headers multiple times just sends multiple values with the http request. So there is no way to "fix" the Host by adding a custom header if it is already set. For these reasons, Host should not be set (and default to $proxy_host). In the unlikely case that your service needs something else you can then just set a custom Host header in the GUI. Fixes https://github.com/NginxProxyManager/nginx-proxy-manager/issues/2675 --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

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starred/nginx-proxy-manager-NginxProxyManager#3673

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