Posted on Sat 28 October 2023
If your Debian system is suddenly very slow to login – like, 25 to 90 seconds of apparent inactivity on every new ssh – it’s not DNS.
Check to see if your
systemd/logind is actually running. Look for a log entry in
auth.log along the lines of
dbus-daemon: [system] Failed to activate service 'org.freedesktop.login1'
right after an SSH attempt.
If so, restart the daemon.