Caddy plugin will not start-

[daveh]

Hello,
I've been testing caddy to use for a reverse proxy for my web servers. I first test on Opnsense 25.1.1 was able to test and determine it would fit my needs. Since then I have updated to Opnsense 25.1.3 I can no longer keep the Caddy plugin running..

Caddy log shows-
{"level":"info","ts":1741964078.8050168,"msg":"using config from file","file":"/usr/local/etc/caddy/Caddyfile"}
{"level":"warn","ts":1741964078.805278,"msg":"No files matching import glob pattern","pattern":"/usr/local/etc/caddy/caddy.d/*.global"}
{"level":"warn","ts":1741964078.8053687,"msg":"No files matching import glob pattern","pattern":"/usr/local/etc/caddy/caddy.d/*.conf"}
{"level":"info","ts":1741964078.807487,"msg":"adapted config to JSON","adapter":"caddyfile"}
{"level":"info","ts":1741964078.8083298,"msg":"redirected default logger","from":"stderr","to":"unixgram//var/run/caddy/log.sock"}
{"level":"info","ts":1741964078.8096356,"msg":"failed to increase receive buffer size (wanted: 7168 kiB, got 41 kiB). See https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes for details."}
Error: loading initial config: loading new config: http app module: start: listening on :80: listen tcp :80: bind: address already in use
Error: caddy process exited with error: exit status 1

It appears lighttpd is also using port 80??
root@OPNsense:/var/log/caddy # sockstat | grep light
root     lighttpd   42750 7   tcp4   *:8443                *:*
root     lighttpd   42750 8   tcp6   *:8443                *:*
root     lighttpd   42750 9   tcp4   *:80                  *:*
root     lighttpd   42750 10  tcp6   *:80                  *:*
root     lighttpd   42750 11  dgram  -> /var/run/log
root     lighttpd   42750 44  stream -> /tmp/php-fastcgi.socket-0
root     lighttpd   42750 46  stream -> /tmp/php-fastcgi.socket-0
root     lighttpd   42750 47  stream -> /tmp/php-fastcgi.socket-1
root     lighttpd   42750 50  stream -> /tmp/php-fastcgi.socket-0
root     lighttpd   10014 4   tcp4   127.0.0.1:43580       *:*
root     lighttpd   10014 5   dgram  -> /var/run/log

I have the Web GUI configured to use https on port 8443.

Any idea how to make caddy open on the WAN interface or make lighttpd stop opening port 80?

Thanks

[daveh]

Nevermind I found the setting to stop lighttpd from using port 80.


After you change the TCP port a Http Redirect is use you can disable the redirect at System: Settings: Administration: Http Redirect check it to disable.

[Monviech (Cedrik)]

There is a manual:

https://docs.opnsense.org/manual/how-tos/caddy.html#prepare-opnsense-for-caddy-after-installation