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SSH Verbindung: Host key verification failed.

asked 2019-03-26 16:33:30 +0100

kahraman@in.tum.de gravatar image
helpdesk

updated 2019-10-18 11:47:32 +0100

Das SSH Login zur Lxhalle funktioniert nicht mehr und ich bekomme folgende Fehlermeldung:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed.

The fingerprint for the ED25519 key sent by the remote host is SHA256:dxjvvmkyuxxxdpKxtJmttkvhxxxbjGmxxxQXA0xxxte4s.

Please contact your system administrator. Add correct host key in /home/musterm/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in /home/musterm/.ssh/knownhosts:17 remove with: ssh-keygen -f "/home/musterm/.ssh/knownhosts" -R lxhalle.informatik.tu-muenchen.de

ED25519 host key for lxhalle.informatik.tu-muenchen.de has changed and you have requested strict checking. Host key verification failed.

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answered 2019-03-26 16:45:05 +0100

kahraman@in.tum.de gravatar image
helpdesk

updated 2019-03-26 16:50:46 +0100

Bitte überprüfen Sie zuerst, ob der Fingerprint, der im Terminal angezeigt wird und der auf unserer Webseite sich übereinstimmen.

Wenn beide Fingerprints gleich sind, können Sie je nach Server einen folgender Befehle ausführen:

Informatik -> LXHALLE:

ssh-keygen -f "/home/musterm/.ssh/known_hosts" -R lxhalle.informatik.tu-muenchen.de

Mathematik -> SSH.MA.TUM.DE:

ssh-keygen -f "/home/musterm/linux/.ssh/known_hosts" -R "ssh.ma.tum.de"

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Asked: 2019-03-26 16:33:30 +0100

Seen: 22 times

Last updated: Oct 18 '19