Oct 30, 2026 | Advanced Linux Scripting, Learn Linux in practical way
doveadm pw -t said the password matched. The reset tool said it succeeded. Auth still failed. A walk through the passdb/userdb split that turns a ‘wrong password’ into a ‘user doesn’t exist’ and why resetting the password three times was...
Oct 30, 2026 | Advanced Linux Scripting, Learn Linux in practical way
A backup that verified clean but restored to nothing. How a hardcoded path, a hung shutdown, and a too-eager verify step combined into a 45-minute failure and the staging/promote pattern that fixed it.For about a year, my KVM backup script did its job. Every Wednesday...
