Thanks for mentioning synapse-admin! I’ve been running Matrix servers for over three years, and never heard about it
As such, I don’t have a ready answer for you. I had a look at the projects readme, it mentions
I can reach the first endpoint via browser (though nothing interesting is happening there), but the other endpoint is being redirected to the SSO. Of course, I don’t have synapse-admin installed.
When I try to access /_synapse or /_synapse/admin on the url of the homeserver, it constantly redirects me to the portal yunohost, which explains the fact that synapse-admin doesn’t work, because it just can’t find /_synapse/admin.
According to the latest information, it could possibly come from this, but I have no not very well understood the operation :
Add a key in synapse settings for this header:Access-Control-Allow-Origin: https://synapse-admin .myserver.TLD, using config panel
When installing synapse admin, set this settings in the synapse’s config panel