On Montag, 7. August 2023 15:19:49 CEST you wrote: > Dear all, > > I just dist-upgraded my Raspberry Pi from buster to bookworm, and while > > ssh -Y... > > worked like a charm in before the update and I could start any X11 program > over ssh, it doesn't work anymore since then. Executing > > ssh -Y -C -l myUser otherHostname.local -v > > I get > > ... > debug1: Requesting X11 forwarding with authentication spoofing. > debug1: Sending environment. > debug1: channel 0: setting env LANG = "en_US.UTF-8" > debug1: channel 0: setting env LC_MONETARY = "de_CH.UTF-8" > debug1: channel 0: setting env LC_MEASUREMENT = "de_CH.UTF-8" > debug1: channel 0: setting env LC_TIME = "de_CH.UTF-8" > debug1: channel 0: setting env LC_ALL = "" > debug1: channel 0: setting env LC_COLLATE = "C" > debug1: channel 0: setting env LC_NUMERIC = "de_CH.UTF-8" > X11 forwarding request failed on channel 0 > ... > > From /etc/ssh/sshd_config on the server: > > AddressFamily inet > X11Forwarding yes > X11UseLocalhost no > > Interestingly, when connecting for the first time I got a warning: > WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! > and I did just > ssh-keygen -f "/home/xxx/.ssh/known_hosts" -R "otherHostname" > which I did. > > xauth is installed on the server. > > What can be the reason, that I cannot use X11 forwarding anymore? > > Thank you. > > Best, > Bernd
Sorry, correction: I didn't upgrade from buster to bookworm but from bullseye.
