and I never encounter this before

[philmiami]

Last login: Tue Jul 29 17:30:42 on console
philmiamis-imac:~ philmiami$ ssh admin@192.168.0.1
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
a4:17:aa:71:39:75:a8:9d:0b:c9:23:f2:d7:93:28:0a.
Please contact your system administrator.
Add correct host key in /Users/philmiami/.ssh/known_hosts to get rid of this message.
Offending key in /Users/philmiami/.ssh/known_hosts:4
RSA host key for 192.168.0.1 has changed and you have requested strict checking.
Host key verification failed.
philmiamis-imac:~ philmiami$

 

[KGB7]

https://www.digitalocean.com/commun...arning-remote-host-identification-has-changed

 

[philmiami]

I did what it says....all fixed


phil-lan-imac:~ philmiami$ ssh admin@192.168.0.1
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
f0:78:e4:a9:b4:e3:e1:3b:2d:4d:e6:3a:9c:8e:41:c9.
Please contact your system administrator.
Add correct host key in /Users/philmiami/.ssh/known_hosts to get rid of this message.
Offending key in /Users/philmiami/.ssh/known_hosts:4
RSA host key for 192.168.0.1 has changed and you have requested strict checking.
Host key verification failed.
phil-lan-imac:~ philmiami$ cd .ssh
phil-lan-imac:.ssh philmiami$ ls
known_hosts
phil-lan-imac:.ssh philmiami$ cat known_hosts
192.168.0.70 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA1ARq/4HRqtBjKrJdhKe/pUc503PEI5ZYrfvSKjXYZvr6BbZLGOWLdBYL34Hxz+oGFXeRNPxNiHuaOJe1HqwI4mH9eGzsbizHHZNBDOF3707OSB9UeluSPGLiDI/QEaWK5ZghTdkIowBeR4cEcag8rjuYmqYRiwFJDEtLA34GXxS3+vPfRDRGofaPP9L/86piiViU2/fu/Kcye2xmZR/kizUeT1ELIjivV5D7GY94taiZ8zCGKE4hlsQwGMw70ohaUL4cy73B0gWTJA2nVnlmDUCKcNsOgt9VuVDBU5RCUxL3OlVBQU6svjPbNq0WpEUQrOsiIzUoe+8s7JGKUzMULw==
192.168.0.60 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA1ARq/4HRqtBjKrJdhKe/pUc503PEI5ZYrfvSKjXYZvr6BbZLGOWLdBYL34Hxz+oGFXeRNPxNiHuaOJe1HqwI4mH9eGzsbizHHZNBDOF3707OSB9UeluSPGLiDI/QEaWK5ZghTdkIowBeR4cEcag8rjuYmqYRiwFJDEtLA34GXxS3+vPfRDRGofaPP9L/86piiViU2/fu/Kcye2xmZR/kizUeT1ELIjivV5D7GY94taiZ8zCGKE4hlsQwGMw70ohaUL4cy73B0gWTJA2nVnlmDUCKcNsOgt9VuVDBU5RCUxL3OlVBQU6svjPbNq0WpEUQrOsiIzUoe+8s7JGKUzMULw==
192.168.211.1 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD1guWhwAluiQ0wTHHC62HniaoGogGqPG/P9z/ksnRSS/iffKmNqNkvsWtJQBayvYcda5+n/6DS50rX29KNq1V3wHynw0cB6qdFRHvLcOhhMrVa2zjr5Fl8ewYc5NTEC+sDn3KocYfQjn2ohjbQopGmtM6eHrQYIHIzPyMZmBKvmP5lB8g4nw4AhaFoWle1v8aeU7aAx6MsIgEF9+BcGLXPErCcnMkh80jX9iPlaX2Sj0Xa+ZZbDe0XPbM1kqXdRKicI6Trang1wB+pvtzzFqp5Y6YyQ/kflgsGlojVjGJzkiWFRPexLUHWUzW5ERlwB9XLFy263W4XC61e41aLsP1r
192.168.0.1 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDDuVpP+2ArBtZ6Qx+3pZYPIRTt6OaRMlhmr0nyhuIw6QSQKGLK1ep6TQHrTnaA3dAhVo+cUnPLStePh/QrfwlHc+sjMO9QsrvbWa15cAqOGObAQqVSEDn4cgUI48bxD7D5jJ9kawz0v7Tg3YOCQdy1wG4SpwLFJRJX0d4IGropxAGKBqkNFdthtB7U/rIbxLeGej92KYnauix6fDcKTVNZPCpy6Jrbic3saGaQFnOo2W8L7PJ4nOxPGIGBKieRnT+BgJCEiu34Vxz2kjt8qEiy+yAJ0FrRzDdN8HdpCyda/WCMeAt8ZgWPckSC/4gPp6bcLVJnGhI0hY95dNJZHMbH
192.168.0.29 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA1ARq/4HRqtBjKrJdhKe/pUc503PEI5ZYrfvSKjXYZvr6BbZLGOWLdBYL34Hxz+oGFXeRNPxNiHuaOJe1HqwI4mH9eGzsbizHHZNBDOF3707OSB9UeluSPGLiDI/QEaWK5ZghTdkIowBeR4cEcag8rjuYmqYRiwFJDEtLA34GXxS3+vPfRDRGofaPP9L/86piiViU2/fu/Kcye2xmZR/kizUeT1ELIjivV5D7GY94taiZ8zCGKE4hlsQwGMw70ohaUL4cy73B0gWTJA2nVnlmDUCKcNsOgt9VuVDBU5RCUxL3OlVBQU6svjPbNq0WpEUQrOsiIzUoe+8s7JGKUzMULw==
phil-lan-imac:.ssh philmiami$ rm known_hosts
phil-lan-imac:.ssh philmiami$ ls
phil-lan-imac:.ssh philmiami$ cd ..
phil-lan-imac:~ philmiami$ ssh admin@192.168.0.1
The authenticity of host '192.168.0.1 (192.168.0.1)' can't be established.
RSA key fingerprint is f0:78:e4:a9:b4:e3:e1:3b:2d:4d:e6:3a:9c:8e:41:c9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.0.1' (RSA) to the list of known hosts.
admin@192.168.0.1's password:


ASUSWRT-Merlin RT-AC68U_3.0.0.4 Sat Jun 7 16:32:17 UTC 2014
admin@RT-AC68U:/tmp/home/root#