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I am working as DBA (Oracle, postgres) since 1999. But I always do more than only Databases.

Linux administration, mail servers, application servers, firewall, loadbalancer, storage, virtualization, monitoring, docker, kubernetes, ansible, certificates.

I am interested in far too much topics, not enough time for all :)

I am plugging together technologies to make things work.

• Mailcow
• added https://mta-sts.*/.well-known/mta-sts.txt URLs
• added backup with borgmatic
• oauth2 when it's officially integrated

• Vaultwarden
• nothing special, just automatic paranoid backup, because it will be a major pain to lose data 😅

Just started, no more paper, all digital documents in one place and not cluttered on disks or in mails.

• paperless-ngx
• scanservjs (scan directly to consume folder)
• Integration with kanidm
• Sharelinks accessible from outside (wireguard tunnel, caddy, opnsense)
• Let's encrypt Certificates at home (DNS-01 validation, RFC2136, technitium DNS)
• import via mail rules/share/directly from scanner to share

• Moving from calibre-web to calibre-web automated
• -> automated imports from share & mail

• ntfy used by monitoring and automated updates/reboots

• kanidm
• everything via commandline :)
• just for oauth2 until now, maybe later for ldap or unix users

• OpnSense with HA setup
• wireguard

• TrueNAS (Core, not sure about Scale as of now)

• technitium

• talos
• k3s
• kind
• minikube
• cilium
• etc.

• ubuntu/debian
• CentOS

• netbootxyz (PXE Booting in lab)
• oxidized (router/switch config backup)
• traefik
• netscaler Loadbalancing
• authelia Authentication
• checkmk Monitoring
• dnscontrol DNS Management
• adguard DNS Filter
• ZenArmor "AI-based Cloud threat intelligence" for opnsense
• HomeAssistant
• docker