[root@subsname home]# scp AAA.scd root@192.***.*.88:/home/

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

@    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 RSA key sent by the remote host is

SHA256:GzJ591j2hA4kisv3vWpDXrsCIa14QZNw4Ke0VlxfZhQ.

Please contact your system administrator.

Add correct host key in /root/.ssh/known_hosts to get rid of this message.

Offending RSA key in /root/.ssh/known_hosts:

RSA host key for 192.***.*.88 has changed and you have requested strict checking. 
Host key verification failed. 
lost connection

[root@subsname home]# vi /root/.ssh/known_hosts

192.***.*.*** ecdsa-sha2-nistp256 BBBBE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNUDPny897mVOwLgqypbD+8PZNcEyddNy+6HkzjI3UW3Wta5lYmOzuqEIa24tB9bbjf4MBB/dkycY17vAEQ/a6o=
192.***.*.*** ecdsa-sha2-nistp256 BBBBE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJ7Whx4HPlqbpjdsq0nsf98OBXIbu9+yia7nSAD6i479HHrtWuIsC+QaC/6p/dApbp9Na3NTDsGyKwhmpr2Jvb4= 
192.***.*.88 ecdsa-sha2-nistp256  BBBBE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFkupWUxI5l60sFB7+lO6ZjpTVo9+bnlpWF5osJEoCpPRqOmt48QpVxKSQzgaZUD/GGBdNN+lL5Ke1Am+bPbrL8=