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Selfhosting

A collection of 3 issues

Mikrotik Hairpin NAT

Hairpin NAT is needed to allow access from your local network to services you are exposing over internet. If not set and not using sort of proxy, you won't access to those services. Wrong solution ...(my) but functioning solution what I had before hairpin NAT. Skip this section,

Matrix Synapse Admin Failed to fetch fix (via Caddy V2)

Infrastructure: Matrix Synapse admin UI through Caddy V2 reverse proxy via docker compose. For easier administration of my Matrix Synapse I choose to run https://github.com/etkecc/synapse-admin via docker compose. Unfortunately I was getting CORS error after logging. Though I followed official Matrix Synapse guide for Caddy V2

Mailcow "variable is not set" troubleshooting

I faced issue after running the update. I am using docker compose installation method with modifications of volumes so all stays in root folder of Mailcow instead of using docker volumes for sake of easing of backups. I messed the docker-compose.yml file after update and needed to roolback. So