I built a lab by hand to test an RC4 migration script, and every run came back clean. The two accounts it should have caught were invisible, because my fixture held the same wrong assumption as the filter.

Every login in the house resolved against one thin client, and the only spare machine ran Ubuntu. The second server became a container, and a bad image tag left me a replica that looked healthy.

The rule a fresh FreeIPA install ships lets every account reach every service on every host, and it is on. That set my order: harden first, enroll second, then argue with each distro about sudo.

My lab has no Windows in it, and a directory should not be the reason to add some. FreeIPA gave me a Kerberos realm and an internal CA on a thin client, and a DNS migration that took the longest.

Six posts of proxying applications that cannot do SSO. Proxmox speaks OpenID Connect natively, so the right move was to get out of the way, and small disagreements made that harder.

Last post I deleted an application login and let the proxy gatekeep. This one keeps its login, and making the proxy a real boundary took a firewall rule and a lesson about who else talks to a service.

Tautulli has its own login and no way to accept an identity from a proxy. I deleted the account and let authentik be the single gate. Whether that is sensible or reckless depends on your network.

I put my identity provider on the internet through a tunnel, then went looking for where to put an access policy in front of it. The answer is a far smaller surface than I expected.

Thirty lines of nginx boilerplate per service, copied nine times, so any improvement meant nine edits. Caddy does it in two, and writing that up is what made me spot a hop left in cleartext.

Certbot on a timer, a deploy hook, and a Discord webhook whose only job was to tell me when the other two broke. Caddy does that work itself, so I moved the front door and deleted the rest.