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OPNsense Forum

English Forums => 26.1 Series => Topic started by: hansen-pansen on March 05, 2026, 10:13:38 AM

Title: OPNsense 26.1.3 / os-caddy 2.1.0: be aware of important upstream change
Post by: hansen-pansen on March 05, 2026, 10:13:38 AM
Dear OPNsense users,

this post is only to make you aware of an important Caddy upstream change that is carried with os-caddy 2.1.0 in OPNsense 26.1.3:

The "Host" header of the upstream connection is now set to the address of the upstream host ("{upstream_hostport}"). Before Caddy 2.11.0 it was set to "{host}".

This might bite you in case you are running the upstream servers in a DMZ, depending on your setup. This can be easily fixed by adding a new "Header" object that carries the value of {host}, and in the "Handlers" sections add this header to the reverse_proxy handler.

Upstream commit that introduced this change: https://github.com/caddyserver/caddy/pull/7454.
Title: Re: OPNsense 26.1.3 / os-caddy 2.1.0: be aware of important upstream change
Post by: Monviech (Cedrik) on March 05, 2026, 11:31:31 AM
https://forum.opnsense.org/index.php?topic=51150
Title: Re: OPNsense 26.1.3 / os-caddy 2.1.0: be aware of important upstream change
Post by: hansen-pansen on March 05, 2026, 11:40:18 AM
Thank you! I swear I did a forum search for "Caddy" before posting. sigh
Title: Re: OPNsense 26.1.3 / os-caddy 2.1.0: be aware of important upstream change
Post by: Monviech (Cedrik) on March 05, 2026, 12:51:35 PM
Its okay :)
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